Pre-Exam 2023 (part 4): erasable inks - our answers

The second claims part was about erasable inks.

“This invention provides erasable inks that provide good writing performance when used in writing instruments such as pens. The erasable inks are water-based inks that have a short "waiting time", i.e. inks that can be erased soon after they are applied on a surface made, for instance, of paper. Because the water-based inks are based on using water as a solvent rather than on using other solvents, the erasable inks of the invention are relatively non-toxic and odour-free.” [002] of the description of the client’s application)

Our answers to this second claims analysis part are given below. We have numbered the questions and statements for easy reference in the discussion.

During the exam, candidates had access to the EPO Legal Text pages, so including the Guidelines. Access was to the live versions, so to the versions in force on 17 March 2023 (so not the version of 31.10.2022 acc REE/IPEE).

Candidates could access the exam in all languages, English, French and German.

In the claims analysis parts (as in the legal parts), the order of the four statements of each of the questions was randomized, i.e., it was different for different candidates. 

In view of the randomized order, we provide the questions and statements together with our answers. If you check your answers with ours, note that the order of the questions and of the four statements from a single question may be different!!!

Please feel invited to comment!

The exam had a mix of common and less-common claims analysis topics. Part 4 was very very chemical with many function-defines agent and resins, many chemical names and formulas, ranges and an example in a table. It seemed that the paper lacked some definitions to also allow the non-chemist to understand it all in full, e.g., as to how much water is contained in a water-based solvent system, and whether an ester-based solvent system also includes water.

Please do not post your comments anonymously - it is allowed, but it makes responding more difficult and rather clumsy ("Dear Mr/Mrs/Ms Anonymous of 18-03-2022 18:03"), whereas using your real name or a nickname is more personal, more interesting and makes a more attractive conversation. You do not need to log in or make an account - it is OK to just put your (nick) name at the end of your post.

Note: the other claims part is discussed in another blog post: here; the legal part is discussed in another blog post: here; first impressions and general comments can be posted here.

Nico & Roel

 

Question 16

Claims as filed with the description on 16.08.2019

I.1. An erasable ink composition comprising:
(a) water;
(b) a colouring agent; and
(c) a releasing agent.

I.2. An erasable ink composition comprising:
(a) water;
(b) a colouring agent;
(c) a releasing agent; and
(d) a film-forming polymeric binder.

I.3. An erasable ink composition according to claim I.2, wherein the water is present in an amount ranging from about 40% to about 90% w/w.

I.4. An erasable ink composition according to claim I.2, wherein the colouring agent is present in an amount ranging from about 0.5% to about 30% w/w.

I.5. An erasable ink composition according to claim I.2, wherein the releasing agent includes a modified siloxane and is present in an amount ranging from about 0.3% to about 30% w/w.

I.6. An erasable ink composition according to claim I.2, wherein the polymeric binder is present in an amount ranging from about 1% to about 15% w/w and comprises a polyvinyl butyral resin.

I.7. An erasable ink composition according to claim I.2, wherein said erasable ink has an erasability of greater than 95% when erased within five minutes of applying the ink to the sheet of paper.

I.8. A pen comprising an outer body, a writing tip at one end of said body, a reservoir included within said body and connected to said writing tip, and within said reservoir a waterbased erasable ink composition comprising:
(a) water;
(b) a colouring agent in an amount of 1.5% to about 30% w/w;
(c) a releasing agent having a water solubility ranging from about 0.5% to about 70%
 of the erasable ink composition; and
(d) a film-forming polymeric binder.

For each of the statements, indicate whether the statement is true (T) or false (F):

16.1 The following feature is described as essential in the description: The modified siloxane-containing releasing agent comprises less than 1% w/w of colloidal silica.

The statement has no reference to a specific claim, so the statement cannot be unambiguously answered.

For embodiments or claims comprising modified siloxane, (for an even more improved erasing) it is essential; [006]: “When the releasing agent includes a modified siloxane, it has to contain less than 1% w/w of colloidal silica”.  This would result in T.

But modified siloxane is not essential (see 16.4) so that in other embodiments of without modified siloxane, it is also not essential that modified siloxane-containing releasing agent comprises comprises less than 1% w/w of colloidal silica. This would result in F.

Both T and F can this be argued.

16.2 The following feature is described as essential in the description: The polymeric binder is a polyvinyl butyral resin.

F – [008] “such as”

16.3 The following feature is described as essential in the description: The erasable ink composition comprises from about 1.5% to about 30% w/w of the colouring agent by weight of the erasable ink composition.

F – [005] “preferably”

16.4 The following feature is described as essential in the description: The releasing agent is a modified siloxane.

F – described as optional in [006]; only essential for an even more improved erasing [006], not for the effects in [005]

 

Question 17

After receipt of the search report from the EPO, the applicant envisages to replace claims I.1. and I.8. respectively as follow:

I.1. An erasable ink composition comprising:
(a) water;
(b) a colouring agent; and
(c) a releasing agent.

I.1bis. An erasable ink composition comprising:
(a) water;
(b) a colouring agent; and
(c) a film-forming polymeric binder.

I.8 . A pen comprising an outer body, a writing tip at one end of said body, a reservoir included within said body and connected to said writing tip, and within said reservoir a waterbased erasable ink composition comprising:
(a) water;
(b) a colouring agent in an amount of 1.5% to about 30% w/w;
(c) a releasing agent having a water solubility ranging from about 0.5% to about 70%
 of the erasable ink composition; and
(d) a film-forming polymeric binder.

I.8bis. A pen comprising an outer body, a writing tip at one end of said body, a reservoir included within said body and connected to said writing tip, and within said reservoir a waterbased erasable ink composition comprising:
(a) water in an amount ranging from about 40% to about 90% w/w;
(b) a colouring agent in an amount of 1.5% to about 30% w/w;
(c) a releasing agent having a water solubility ranging from about 0.5% to about 70%; and
(d) a film-forming polymeric binder.

For each of the statements, indicate whether the statement is true (T) or false (F):

17.1 Claim I.5 contains all the essential features.

F - For modified siloxane, it is essential that it contains less than 1% w/w of colloidal silica, which is not defined in claim I.5.

Note: it also contains non-essential features, such as the binder [004] via the dependence on I.2, and the features of claim I.,5 itself.

I.5, when written out, reads:
An erasable ink composition comprising:
(a) water;
(b) a colouring agent;
(c) a releasing agent; and
(d) a film-forming polymeric binder.
wherein the releasing agent includes a modified siloxane and is present in an amount ranging from about 0.3% to about 30% w/w.

17.2 Claim I.1bis, if filed as envisaged, would meet the requirement of Article 123(2) EPC.

F - It appears there needs to be a releasing agent ([004]), which is not included in claim I.1bis.

17.3 Claim I.4 meets the requirement of Article 84 EPC.

F - One aspect of Art. 84 is that all essential features are defined by the claim - according to [005], the minimum for the colouring agent is 0.75% w/w.
Another aspect is the use of 'about' which should be replaced by the numerical tolerances implied by 'about' – Guidelines.

I.4 when written out reads:
An erasable ink composition comprising:
(a) water;
(b) a colouring agent;
(c) a releasing agent; and
(d) a film-forming polymeric binder,
wherein the colouring agent is present in an amount ranging from about 0.5% to about 30% w/w.

17.4 Claim I.8bis, if filed as envisaged, would meet the requirement of Article 123(2) EPC.

F – Undisclosed combination of ranges.

 

Question 18

For each of the statements, indicate whether the statement is true (T) or false (F):

18.1 Claim I.1 is novel over D2.

F – Water is part of a 'water-based solvent system', colouring agent = 'pigment, whatever its color', releasing agent = 'dispersant ... have a releasing effect'

18.2 Claim I.1 is novel over D1.

F – Anticipated by D1's prior art section [002]: Water is part of 'water-based', colouring agent = 'pigment', releasing agent = 'releasing and spreading agents'

18.3 Claim I.3 is novel over D2.

T – D2 described “about 74% to about 94% w/w of the water-based solvent
system”, but it does not indicate which percentage of that is water and what percentage is pigment – could be 30% water and 64% pigment?

But facts seem to be missing: D2 has a film-forming dispersent but it is not clear that this is a 'polymeric binder'. The specific examples of polymeric binders do not match the specific examples of dispersants in D2.

Note possibly F is concluded by a chemist who, when using special knowledge, may (or not??) consider it implicit that a water-based solvent system cannot hold more than a few % of pigment – but that I nowhere disclosed and may not be true, or may at least not be necessarily so, which is needed for a novelty-destroying effect.

I.3 when written out reads:
 An erasable ink composition comprising:
(a) water;
(b) a colouring agent;
(c) a releasing agent; and
(d) a film-forming polymeric binder,
wherein the water is present in an amount ranging from about 40% to about 90% w/w.

18.4 Claim I.6 is novel over D2.

T – 2 certainly does not disclose polyvinyl butyral resin

I.6 when written out reads:
An erasable ink composition comprising:
(a) water;
(b) a colouring agent;
(c) a releasing agent; and
(d) a film-forming polymeric binder,
wherein the polymeric binder is present in an amount ranging from about 1% to about 15% w/w and comprises a polyvinyl butyral resin.

 

Question 19

For each of the statements, indicate whether the statement is true (T) or false (F):

19.1 D2 discloses a pen that contains an erasable ink composition.

T - See first sentence of [002]

19.2 D2 does not teach that the erasability of the erasable ink composition is dependent on the drying time.

T - Indeed, D2 lacks this teaching

19.3 D1 teaches that an essential element of all erasable ink compositions is the presence of a releasing agent.

F – [002] "Generally, such erasable ink compositions also include ... releasing and spreading agents" - "Generally" means it is not essential

19.4 D1 mentions that water in the solvent system has disadvantages.

F - It does not.


 

Question 20

Consider that the following new set of claims (II.1 to II.3) was filed by the applicant during the examination proceedings to expedite prosecution and the patent was granted five months ago with the following set of claims:

II.1. An erasable ink composition comprising:
(a) from about 40% to about 90% w/w of water;
(b) from about 1.5% to about 30% w/w of a colouring agent;
(c) from about 0.3% to about 30% w/w of a releasing agent; and preferably
(d) from about 1% to about 15% w/w of a film-forming polymeric binder.

II.2. An erasable ink composition comprising:
(a) from about 40% to about 90% w/w of water;
(b) from about 1.5% to about 30% w/w of a colouring agent;
(c) from about 0.3% to about 30% w/w of modified siloxane releasing agent.

II.3. An erasable ink composition, wherein said erasable ink has an erasability of greater than 95% when erased within five minutes of applying the ink to the sheet of paper.

For each of the statements, indicate whether the statement is true (T) or false (F):

20.1 In an opposition procedure, an opponent will likely be successful with a novelty attack against claim II.2 over D1.

F – D1 has two types of disclosures:
D1 [002] prior art water-based compositions: no modified siloxane releasing agent and no ranges;
D1 [003]-[004]: no water mentioned: ester-based solvent system, not water-based solvent.

20.2 In an opposition procedure, an opponent will likely be successful with an attack under Article 83 EPC against claim II.3.

F - The patent application discloses in [011] an erasable ink composition which would allow the skilled person to carry out the invention defined by claim II.3 since this composition reaches an erasability of 95% already after 10 seconds ([012])

Note: the claim itself is a 'result-to-be-achieved' claim and problematic under Art. 84 EPC but this is not a ground for opposition.

20.3 In an opposition procedure, an opponent will likely be successful with an attack under Article 123(2) EPC against claim II.2.

T - Not supported by the original claim set (e.g., 1.5% lower bound is missing in claim I.4). There is seemingly support in [009], but according to [006], when the releasing agent includes modified siloxane, it has to contain less than 1% w/w of colloidal silica. This essential feature is not in newly introduced claim II.2 -> intermediate generalization.

20.4 In an opposition procedure, an opponent will likely be successful with a novelty attack against claim II.1 over D2.

F - Facts seem missing: D2 has a film-forming dispersent but it is not clear that this is a 'polymeric binder'. The specific examples of polymeric binders do not match the specific examples of dispersants in D2. In addition, water-based solvent is present from about 74% to about 94% w/w, of which 74% falls within the claimed range of about 40% to about 90% w/w. However, it is not clear how much of the water-based solvent in D2 is actually water, so that D2 cannot  be a direct and unambiguous disclosure of some % w/w of water. Further, there is no direct and unambiguous disclosure of the same combination of the same ranges, nor of an individualized ink within the terms of the claim (similar as two-list selection) – hence not novelty-destroying [updated 20/3/2023]

Note: initially, we also had an argument on the binder, as we missed the "preferably" because it is at the end of feature (c) rather than at the start of feature (d), where one would expect it.

 We look forward to your comment! (Please use your name or a nickname)

(c) DeltaPatents


Annex – Pre-printables for Part 4 (copied from the pdf; added 19/3)

EUROPEAN QUALIFYING EXAMINATION 2023

Pre-examination

Documents for part 4
* Description of the invention
* Documents D1 and D2

Description of the invention
PCT 2021/321654, filed 16.08.2019

[001] Some writing instruments, e.g. pens and markers, include erasable inks which allow
markings formed with the ink to be erased efficiently. It is desirable that erasable inks
provide good writing performance when compared with non-erasable inks.

[002] This invention provides erasable inks that provide good writing performance when
used in writing instruments such as pens. The erasable inks are water-based inks that
have a short "waiting time", i.e. inks that can be erased soon after they are applied on a
surface made, for instance, of paper. Because the water-based inks are based on using
water as a solvent rather than on using other solvents, the erasable inks of the invention
are relatively non-toxic and odour-free.

[003] All the amounts are expressed, as per the convention in the technical area, as %
w/w, corresponding to a weight percent (%) of a given compound per weight of the
erasable ink composition.

[004] In one aspect, the invention features an erasable ink composition that includes
(a) water, (b) a colouring agent, (c) a releasing agent, and optionally (d) a film-forming
polymeric binder.

[005] The erasable ink compositions of the present invention preferably contain from about
1.0% to 30% w/w of the colouring agent, in the form of a pigment on a solid basis, more
preferably about 1.5% to 5% w/w of colouring agent. So to avoid that the colour intensity is
too weak for proper reading, the erasable ink has to contain more than 0.75% w/w of the
colouring agent.

[006] The releasing agent allows the erasable ink composition to be erased from a surface
made of paper. It is a finding of the inventors that if the releasing agent includes a modified
siloxane, the erasing is even more improved. When the releasing agent includes a
modified siloxane, it has to contain less than 1% w/w of colloidal silica. To enhance
erasability, it is necessary that the releasing agent has a water solubility ranging from
about 0.5% to 70%.

[007] The erasable ink compositions preferably contain from about 0.3% to 30% w/w of the
releasing agent, more preferably from about 1% to 7% w/w of said releasing agent. If the
amount of the releasing agent is too high, the erasable ink composition may smear,
whereas if the amount of the releasing agent is too low, then its erasability may be
compromised.

[008] When present, the polymeric binder is a resin, such as a polyvinyl-based resin (e.g. a
resin of PVC or of polyvinyl butyral (PVB)), an acrylic-based resin or a melamine resin.
The preferred polymeric binder includes a plasticised polyvinyl butyral resin. It allows the
erasable ink composition to shine under the light.

[009] Some implementations include one or more of the following features. The water is
present in an amount ranging from about 40% to about 90% w/w, the colouring agent is
present in an amount ranging from about 1.5% to about 30% w/w, the releasing agent is
present in an amount ranging from about 0.3% to about 30% w/w and the optional
polymeric binder is present in an amount ranging from about 1% to about 15% w/w,
wherein the percentages are by weight of the erasable ink composition.

[010] In another aspect, the invention relates to a pen comprising an outer body, a writing
tip at one end of said body, a reservoir included within said body and connected to said
writing tip, and within said reservoir a water-based erasable ink as described above.

[011] Example: An erasable ink composition was formed by mixing the ingredients shown
in Table 1, wherein the amounts are percentages by weight of the erasable ink
composition:

Ingredient

Amount (w/w)

Description

Water

60%

Solvent

Polyvinyl butyral

23%

Binder

Ethylhexyl Phthalate

8%

Plasticiser

Blue pigment

3.5%

Colouring agent

Polyethylene oxide modified
poly (dimethyl) siloxane

5%

Releasing agent

Oleic acid

0.5%

Emulsifier

[012] This ink was applied to a piece of paper. After 30 seconds, an eraser was used to
remove the ink of the paper. The ink erased cleanly, leaving no visible residue or staining.
A second marking was applied to the piece of paper and allowed to dry for a longer period
(60 seconds). This marking also erased cleanly. The ink exhibited an erasability of 95%
after a waiting time of 10 seconds, and an erasability of 100% when completely dry.

(No drawings with the application)

D1 – Advertisement in The Local Sun, published on the 15 August 2019

[001] For a number of years, there has been a desire to produce a pen that produces an
erasable, pencil-like trace. The particular choice of colouring pigments is important for
maintaining the erasability of traces formed by the erasable ink composition.

[002] Similarly, numerous water-based erasable ink compositions exist in the prior art.
Typically, such water-based compositions include a block copolymer such as styrenebutadiene and a pigment. Generally, such erasable ink compositions also include one or
more additives such as releasing and spreading agents, antioxidants, surfactants,
gelatinisers, lubricants and various waxes.

[003] The erasable ink composition of our new pen produces traces that are substantially
erasable with a common pencil eraser and are erasable for at least one day after the tracs
are formed on paper.

[004] Some specificities of our product are:
- The pigment, of any colour, is present in an amount of 2% to 25% weight per weight
(w/w).
- An organic ester-based solvent system is present in an amount of 25% to 55 % w/w.
- The solvent system comprises a component selected from the group consisting of an
optionally substituted cycloalkane, an optionally substituted cycloalkanone, an
optionally substituted cycloalkene, and mixtures thereof; and an organic ester. The
solvent system may comprise additionally other types of commonly known solvents.
- A polymeric binder being a liquid butene polymer combined to a plasticiser.

(No drawings with D1)

D2 – Editorial paper published in Pen Technology on 1 March 1995

[001] Erasable ink compositions, and more particularly erasable ink compositions for use
in writing instruments, are becoming more and more popular. However, erasable ink
compositions should not only be erasable but also provide good writing performance when
used in writing instruments.

[002] The simplest erasable ink composition for use in a writing instrument, such as a pen,
comprises a solvent and a pigment. Preferably, said pigment has a flake-like morphology.
The pigment, whatever its colour, is dispersed in the solvent. It seems that for the most
efficient systems, the erasable ink compositions include from about 5% to about 20% w/w
of the flake-like pigment and from about 74% to about 94% w/w of the water-based solvent
system. Such erasable ink compositions exhibit an erasability of at least 80%.

[003] Optionally, the erasable ink composition can comprise a dispersant. Typically, the
dispersants are water-soluble polymers that include polymeric chains. When present, the
dispersant is typically included at about 1% to 4% w/w, and most preferably about 1.5% to
2% w/w. Examples of suitable dispersants include, but are not limited to, nonionic
copolymers or anionic substituted alkoxylated polymers. One of the advantages of the
dispersant is that it forms a film at the surface of the writing as well as to have a releasing
effect.

(No drawings with D2)

Comments

  1. Is there anyone who’s button for the Main exam enrolment not being activated yet?

    ReplyDelete
  2. The Examiner's Report is now online!

    https://www.epo.org/learning/eqe/compendium/preexamination.html

    ReplyDelete
  3. The Examiners' report is online!

    ReplyDelete
  4. The Examiners' report is online!!

    ReplyDelete
  5. The Examiner's report is out!

    Only statement 16.3 (in our version 16.1) was neutralized.
    The Examiner's Report indicates: "16.3 The following feature is described as essential in the description: The modified siloxane-containing releasing agent comprises less than 1% w/w of colloidal silica.
    TRUE: In [006] of the description of the application it is stated that the releasing
    agent should always contain less than 1% w/w of colloidal silica, when the releasing agent includes the modified siloxane.
    FALSE: The provision of modified siloxane is not an essential feature as discussed in 16.2 above.
    Both answers are possible depending on the interpretation of the statement"

    Due to a different interpretation of "water-based solvent" (according to the Examiner's Report, this is just water; in our interpretation using just the information in the paper, it is a solvent that is based on water as main component but also includes an unspecified further component -- in line with a water-based INK not being just water but an INK having water as main ingredient plus more such as colorants: a water-based SOLVENT is a SOLVENT having water as main ingredient plus more), the Examiner's Report gives different answers from ours for 17.4, 18.3 and 20.1 (none of them was neutralized):

    ReplyDelete
    Replies
    1. For 17.4 (also 17.4 in our version), the Examiner's Report gives:
      "17.4 Claim I.8bis, if filed as envisaged, would meet the requirement of Article 123(2) EPC.
      TRUE: Claim I.8bis is based claim I.8 further specifying the amount of water to be
      from about 40% to about 90% w/w. This specific range for the amount of water is explicitly disclosed in paragraph 9 of the description as one of the several optional features in combination with the embodiments of the application as filed (Guidelines H-V, 3.2, G-VI, 8(i))".

      For 18.3 (also 18.3 in our version), the Examiner's Report gives:
      18.3 Claim I.3 is novel over D2.
      FALSE: D2 discloses an erasable ink composition ([001]) comprising: (a) water
      ([002]), (b) a colouring agent ([002]; pigment = colouring agent), (c) a releasing agent ([003], since the dispersant of D2 has a releasing effect) and a film-forming polymeric binder ([003], since the dispersant is a water-soluble polymer that includes polymeric chains and has the effect of forming a film). D2 does not explicitly disclose that the water is present in an amount ranging from about 40 to about 90% w/w, however it discloses an overlapping range, i.e. about 74% to about 94% w/w ([002] of D2). According to the GL G VI-8, the criteria mentioned in relation to selection inventions can be applied analogously for assessing the novelty of overlapping numerical ranges (see T 17/85), i.e. (a) is the selected sub-range narrower compared to the known range; and (b) is the selected subrange sufficiently far removed from any specific examples disclosed in the prior art and from the end-points of the known range. This is not the case here, thus, the subject-matter of claim I.3 is not novel over D2.
      The description in [002] of the application mentions that water-based ink are based on using water as a solvent rather than using other solvents. This means that “water-based” corresponds to “water"

      For 20.1 (20.4 in our version), the Examiner's Report gives:
      "20.1 In an opposition procedure, an opponent will likely be successful with a novelty attack against claim II.1 over D2.
      TRUE: D2 discloses an erasable ink composition comprising : (a) from about 74 to
      about 94% w/w of water (overlapping with the range from II.1); (b) from 5 to 20% w/w of the flake-like pigment (overlapping with the range from II.1.); (c) from 1 to 4% w/w of dispersant/releasing agent/film forming polymer (once more overlapping with the range from II.1). Note that the releasing agent of D2 also play the role of a film-forming polymeric binder ([003]). According to the GL G VI-8, the criteria mentioned in relation to selection inventions can be applied analogously for assessing the novelty of overlapping numerical ranges (see T 17/85), i.e. (a) is the selected sub-range narrower compared to the known range; and (b) is the selected sub-range sufficiently far removed from any specific
      examples disclosed in the prior art and from the end-points of the known range. Although here we have four overlapping ranges, the ranges are neither narrower nor far removed from the end-points of the known ranges. Please further note that feature (d) of claim II.1 is optional. Thus, claim II. 1 would not be new over D2"

      Delete
  6. This comment has been removed by the author.

    ReplyDelete
    Replies
    1. Did you pass as you expected?

      Delete
    2. How would I know? The results aren't announced yet

      Delete
    3. Plus why would I speak to an anonymous :-)

      Delete
    4. you said earlier that you had 86 that's why :) did not mean to be rude

      Delete
  7. the correction is available (but not the results)
    almost no question has been neutralized, two months for them to discuss it and for what?

    ReplyDelete
  8. no neutralization, this is weird

    ReplyDelete
  9. I have compared my answers with the Examiners' Report and seem to have passed, but my 'enrolment to the main examination' button is not activated and instead the 'enrolment to the pre-examination' is activated. Is anyone else in the same situation?

    ReplyDelete
  10. 16.1 was neutralized: the Examiner's Report provides (in its version it is 16.3):

    "16.3 The following feature is described as essential in the description: The modified siloxane-containing releasing agent comprises less than 1% w/w of colloidal silica.
    TRUE: In [006] of the description of the application it is stated that the releasing agent should always contain less than 1% w/w of colloidal silica, when the releasing agent includes the modified siloxane.
    FALSE: The provision of modified siloxane is not an essential feature as discussed in 16.2 above.
    Both answers are possible depending on the interpretation of the statement"

    ReplyDelete
  11. The Examiner's Report answers TRUE for this statement:

    "17.4 Claim I.8bis, if filed as envisaged, would meet the requirement of Article 123(2) EPC.
    TRUE: Claim I.8bis is based claim I.8 further specifying the amount of water to be from about 40% to about 90% w/w. This specific range for the amount of water is explicitly disclosed in paragraph 9 of the description as one of the several optional features in combination with the embodiments of the application as filed (Guidelines H-V, 3.2, G-VI, 8(i))."

    Unfortunately, no comments were made in the Examiner;'s Report as to the possible relevance of the phrase "Some implementations include one or more of the following features", which one could -as we did- consider to not unambiguously disclose any specific one or more of the listed (combinations of) features such that the amendment would not be allowable.

    ReplyDelete
  12. The Examiner's Report provides (in there, the statement is numbered as 20.3):

    "20.3 In an opposition procedure, an opponent will likely be successful with an attack under Article 83 EPC against claim II.3.
    FALSE: Claim II.3 has rather a clarity problem (Article 84 EPC, which is not a ground for opposition), as it lacks the essential features to achieve the effect sought. However, the application (as required by Article 83 EPC) does provide the teaching to carry out the invention as exemplified in [011] of the description (Guideline F-III, 1)."

    ReplyDelete
  13. The Examiner's report is published today, only one question neutralized... (about the 2024 calendar)

    ReplyDelete
  14. well it was worth the wait... 1 or 2 neutralizations

    ReplyDelete
  15. I’m sorry but two months for this ?

    ReplyDelete
  16. The Examiner's report is now available from Compendium! Surprisingly not so many questions are neutralised!

    ReplyDelete
  17. Q 17.4 is marked as true in examiner's report. But I think amending claim (including specified range of water) without including rest of the features disclosed in paragraph [0009] is cherrypicking, therefore it wouldn't meet article 123(2) EPC. What do you think? Would EPO neutralize that question after Examiner's report is published (or any other question)?

    ReplyDelete
    Replies
    1. They can if someone files an appeal and wins it ... but it takes 1500 euros

      Delete
    2. I agree with you as does Deltapatents apparently. However, appealing only makes sense if the outcome is decisive for you to pass or fail (imho).

      Delete
    3. Hi D42, appealing indeed only makes sense if the outcome is decisive for you to pass or fail.

      Delete
    4. It is for me. I calculated 69 marks as it is. Does EPO change answers to questions or neutralize it without appeal? Maybe they internally realize a mistake and republish results?

      Delete
    5. Hi Adam,
      usually not.
      Neutralizations are given in the Examiner's Report as far as they have been decided in when the marking is finalized and the results letters are being prepared.
      However, it happened once that the Examiner's Report was changed due to succesful interlocutory revision of the appeal of a candidate. In principle, each pass/fail decision is an individual decision for an individual candidate and that becomes final if the candidate does not appeal - however, in a few occurrences, they have applied a successful interlocutory revision to all candidates (as far as it changed a fail into a pass); but not in ll cases (after all a decision becomes final if the adversely affected person does not appeal).
      So, in principle you need to appeal yourself.

      Delete
    6. Thank you a lot Roel. Turns out I passed with 75 marks.

      Delete
    7. But it seems like the score doesn't match what we calculated based on the official result. Maybe the randomized questions aren't marked properly?

      Delete
  18. Not everyone has the button. I wonder if it indicate passing/failing. My collegue does not have it.

    ReplyDelete
  19. The examiner's report is out!

    ReplyDelete
    Replies
    1. See above ;)

      You may not have seen that as you may not have seen/clicked on "Load more...." at the bottom of the first page of comments. (Unfortunately, we cannot force the system to always show all comments while keeping this same layout)

      Delete
  20. Examiner's report available!!

    ReplyDelete
  21. Is it "safe" to count our points with the examiners report? or are there still possibilities that they change their mind?

    ReplyDelete
  22. Examiner's report is available!

    ReplyDelete
  23. I can now see my results in myEQE! Score doesn't match what I calculated based on the examiner's report though...

    ReplyDelete
    Replies
    1. is it a pass or a fail?

      Delete
    2. Thank you for sharing the info. I did not receive an email or anything like that informing me about the document in myEqE. It did also not match with what I calculated, because my official results show 2 points more. If this is also the case for other people, it could be because the epo neutralised more than just 2 statements.

      Delete
    3. D42 : it seems that they did not send an email to everyone.. and same here:the results were 2 points higher than calculated, they must have neutralized another question

      Delete
    4. I don't think so. My actual score in the result was 4 points lower than what I've calculated based on the Examiner's report though.

      Delete
    5. Here also two points lower than what I calculated from the examiner's report. Very strange.

      Delete
  24. I can now see my results in myEQE! Score doesn't match what I calculated based on the examiner's report though...

    ReplyDelete
  25. RESULTS ARE OUT FINALLY!

    ReplyDelete
  26. I have just been informed by several candidates that the results are out, finally!

    Congratulations to all that passed Pre-Exam 2023! 🥂🍾💐

    ReplyDelete
    Replies
    1. Thanks Roel. But I've noticed that many candidates have a issue of the difference between the official result point and the score that we have calculated based on the Examiner's report.

      I think there should be no difference at all but somebody has 2 points higher than what they calculated and I have 4 points gap (lower in the actual result).

      I assume that many the randomized questions aren't marked properly?

      Should I report this issue to EQE board.. anyway the result doesn't matter for me (PASS matters)..

      Delete
  27. Yeah, the result score doesn't match with what I've calculated. Weird!

    ReplyDelete
  28. Thanks Roel and all!
    I finally failed with 68 (I calculated 69) points. Does anyone plan to appeal against Q18.3 and/or Q14.4?
    Since I answered according to the deltapatents solution, a neutralization of one of these would turn my result into PASS.
    I am not sure if I will appeal but if here are more candidates we should connect for collecting good arguments? In fact, there are already many good points in this blogpost.

    ReplyDelete
    Replies
    1. I agree. I agree. I calculated 67 points and I answered to Q14.4, Q18.3 and Q21.1 as Roel did. @Roel: can we send you an email to reach each other?

      Delete
    2. I have created this mail address so that we can easily exchange ideas: appeal2023@outlook.de
      Everyone in my situation feel free to contact me!

      Delete
  29. I've received an e-mail that saying results are available in myeqe. This is another result file that is different than the previous one that was available. Is this the case with everyone?

    ReplyDelete
    Replies
    1. Yes, everyone got the email. I got two points more than my first result.

      Delete
    2. As several candidates have noticed, there was a issue for the marking the score as it was different from the score that we have marked with the Examiner's report. The issued was noticed by the Board and the previous result is now revoked (only the new result is the real result).

      Delete
  30. Today, candidates received the following email from the EQE secretariat:

    “Subject: EQE 2023 Pre-examination - Communication from the Examination Board

    Dear candidate,

    We would like to inform you that after the release of the pre-examination results on 10 May 2023, we have encountered some discrepancies between the results communicated and what was to be expected in view of the Examiners’ Report. Upon conducting a thorough investigation, we have successfully identified the source of the issue, which is of a technical nature. Please be informed that the problem has been solved.

    As a consequence, the results have been recalculated and must be re-issued. Therefore, the decision of the Examination Board concerning your result of the pre-examination 2023 communicated to you on 10 May 2023 is hereby revoked. A new decision based on the correct result is now available in myEQE.

    Best regards / Mit freundlichen Grüßen / Sincères salutations

    The Examination Secretariat
    on behalf of the Examination Board”

    ReplyDelete
    Replies
    1. Please post any comments to this email to:
      http://pre-exam.blogspot.com/2023/05/pre-exam-2023-results-and-examiners.html

      Delete
  31. Hi Roel, but what if water-based indeed means "having water as the main ingredient"? I don't believe the answer would have been any different then.

    Taking your definition, it means that the solvent system (i.e. being a composition of solvents) has as main ingredient water, meaning at least half of the used solvents is water - otherwise it would be solvent-based.
    As a result, an ink composition having from about 74% to about 94% w/w of the water-based solvent system, contains at least about 37% to about 47% w/w of water. Any amount lower than that, would mean that the solvent system is not water-based, because then water would not be the main ingredient anymore.

    The answer to 18.3 would then still be false for the same reason (GL G VI-8 - criteria for selection invention also applicable to overlapping numerical ranges): the selected sub-range of 40-90% w/w is not narrow, and not sufficiently far removed from the examples in the prior art.

    ReplyDelete
  32. PS: The whole problem with this paper is that it is using specific terminology which is understandable (although also debatable) when you're familiar with the field, but sounds totally nuts when you are not a chemist working in formulations.

    The word solvent is maybe the most confusing of all. Water is a solvent (see also [011] in the application). But when the wording "solvent-based" is used, one actually means "organic solvent-based" and definitely NOT water, basically anything BUT water. Water and solvent in this context are regarded antonyms, although water is a solvent.
    Furthermore, from a (somewhat irrelevant) expert viewpoint, it would be strange for a solvent-based ink to even contain water, because most organic solvents are not even miscible with water. Vice versa, the same should be true for water-based inks. However, in real life, a water-based ink will usually comprise some organic solvents, even though it is not easy to mix them (although not impossible when chosen carefully and often done for specific reasons of compatibilizing/spreading/wetting/drying/etc).
    The question is if one would then still call this additive a solvent, or rather a wetting agent, or ... because the main function of these low amounts of "solvent" would perhaps not be to solubilize. Do these compounds then form part of the "solvent system"?

    ReplyDelete
    Replies
    1. To your PS: that is indeed a major issue.

      After all, disclosure is all about "directly and unambigously" understood = "what the skilled person will understand", and not "what the skilled person
      could understood."... So, understandable but debatable means "NOT directly and unambiguously".

      And... the paper should not be read as with expert eyes. See Rule 22(3) IPREE, last sentence: "Candidates shall not use any special knowledge they may have of the technical field of the invention."

      Delete

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