Our attempt - Paper C 2025 IR thermometer

 Paper C of 2025 discussed measuring body temperature using an IR sensor. The paper presented the candidates with several interesting legal and substantive issues. 

Part 1. F

Added matter

Claim 3 is an intermediate generalization of the examples presented in the application as filed. Claim 3 has an optional feature. 

The client wants us to attack 'a possible fallback'. The obvious fallback would claim 3 wherein the added matter feature is removed and the optional feature is now required. 

Effective dates

Claims 1, 2, and amended claim 3 get the priority date.

List of evidence

A2, A3, and A5 are art. 54(2) prior art for claims 1, 2, and amended claim 3

A4 is 54(3) prior art for claims 1, 2, and amended claim 3

Our solution for Paper C 2024 - Wireless charging pad


The paper C of this year 2024 was about wireless charging of cars.

Our solution in short. Our full solution is after the break. 

Claim 1: 

              Added subject matter

              Lack of novelty over A2 (priority publication Art. 54(2), A2 Art. 54(3))

              Lack of inventive step over A3+A5

Claim 2:

              Lack of novelty over A2 (priority publication Art. 54(2), A2 Art. 54(3))

Claim 3:

              Lack of inventive step A2 Prio Pub. + A4

Claim 4: 

              Lack of novelty over A5

Claim 5:

              Lack of novelty over A7

              Lack of novelty over Model Q evidenced by A6

Claim 6:

              Lack of inventive step over A6 ‘Model P’ and A5

Claim 7:

              Lack of inventive step over A6 ‘Model P’ and A5, evidence provided by A7


 The effective dates section was a bit more complicated than in recent years, combining a first application issue with many 54(3) documents (2 in part one, 3 in part two). Complicating the date analysis was a request of the client to ensure fall back positions of claim 1 are attacked. Since claim 1 has two problems: a partial priority loss due to the first application issue, and added matter, candidates had to decide what the appropriate fallback should be.

We had some discussion on whether A5.4 (this notation also being used elsewhere and referring to A5 [4]) enables a novelty attack on claim 5. As the signal of the pressure sensors decides on the charging, it seems that all features are disclosed. A processing unit would be implicit as any unit that processes a signal may be called a processing unit. Nevertheless, this is attack seems too much of a stretch and was probably not the intention.

Claim 7 is another claim that we had some discussion about. The reference to pricing suggests that maybe an attack exploiting non-technicality might be possible. To follow this idea, one might take model Q as the closest prior art, and argue that it is already adapted to charge based on a signal. One would then argue that using a signal to represent pricing is a non-technical difference which may be ignored.

Unfortunately, this attack is not possible, since the model Q is not suited for wireless charging which is required by claim 7. The comments under A6 make clear that the model Q cannot be adapted to wireless charging either. This makes any line of attack against claim 7 starting from model Q impossible.

A second reservation we have about this argument, is that it is not altogether clear whether reference to price automatically makes a feature non-technical. Engineers are often charged with problems related to price, e.g., to make a device cheaper, and the solutions they find are typically technical. Also in this case, high energy price reflects a busy electrical network, so the feature of claim 7 contributes to reducing congestion on the electrical network.

The alternative option is to take model P as the closest prior art and focus on the RFC standard. This has the advantage that price related charging is actually disclosed, mooting a discussion about its technicality. This line of attack would require one to argue that it is implicit from A6 that model P is adapted to the RFC standard. We are not sure that A6 really clears this bar. Although model Q was the first model to have the standard, it might also have been the last—in other words, it is not inevitable that model P has the RFC standard. An alternative would be to accept that the standard is a distinguishing feature and introduce the standard via inventive step. This approach is also a bit dodgy since the obvious D2 document A7, is 54(3). The combining document would have to be the model Q. On balance we took the first approach, arguing that it is implicit that the model P has support for the standard.

Finally, we give our regards to Ms. Molly Dorsett Pauley. She must have quite a reputation as an opposition specialist after her successful oppositions in 2015 and 2021. 

We look forward to your comments!

Comments are welcome in any official EPO language, not just English. So, comments in German and French are also very welcome!

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 15-03-2023 22:23"), 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.

Sander, Nico, with feedback from Joeri

Our attempt at e-EQE Paper C 2023 - Road racing pedal

Here's our attempt at this year's paper C. This year's paper concerned pedals for bicycles comprising sensors to help cyclist to optimize their pedaling. 

A good chunk of the paper was quite mechanical requiting candidates to argue about the components of chain drives, but on the other hand a quite complicated ranges puzzles was also presented. The first part was clearly more work than the second part. 

You can find our solution by clicking on "Read more" below.

We look forward to your comments!

Comments are welcome in any official EPO language, not just English. So, comments in German and French are also very welcome!

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 15-03-2023 22:23"), 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.

Joeri, Jelle, Nico, Sander

Paper C e-EQE 2021: first impressions?

To all who sat the C-paper today:

What are your first impressions to this year's C-paper? Any general or specific comments?

What was the effect of doing it online? Of typing your answer rather than writing it by hand? Could you benefit from being able to copy from the exam paper into your answer? And from copying parts of your answer elsewhere into your answer?
How did you experience taking the exam from your home or office location rather than in an examination center?
(How) was it different due to the due of the LockDown Browser?
What was the effect of the situation that you had to take the exam largely from the screen (as only a  part could be printed) rather than from paper?
Did you experience any technical difficulties during the exam? How & how fast were they solved?

How did you handle the situation with the paper being split into two parts?
What was the effect of the paper being split into two parts? 
How did you use the break?

How did this year's C-paper compare to the C papers of 2013 - 2019?

Any pleasant and/or unpleasant surprises?

The paper and our answers

[Update 7 March 2021:] A copy of the paper, together with the claims for part 2, is available here
(We expect that the  C paper will be made available in all three languages from the EQE website, Compendium, PaperC )

We give the core of our answer in a separate blog: here.

We look forward to your comments!

Comments are welcome in any official EPO language, not just English. So, comments in German and French are also very welcome!

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 05-03-2021 16:56"), whereas using your real name or a pseudonym 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.

Rule 25(3) IPREE amended

A Decision of the Supervisory Board amending Rule 25 of the Implementing provisions to the Regulation on the European qualifying examination for professional representatives has been published in the Official Journal - OJ 2019, A66.

The decision amends Rule 25(3) IPREE with immediate effect.

Earlier Rule 25(3) read:
"(3) Candidates are expected to put themselves in the position of the representative and, using only the information provided by the client, prepare a notice of opposition which when typed would be ready for filing. The pre-printed opposition form provided may be used, but it is not obligatory and marks will not be lost if it is not used."

Amended Rule 25(3) IPREE reads:
"(3) Candidates are expected to put themselves in the position of the representative and, using only the information provided by the client, prepare a notice of opposition which when typed would be ready for filing."

I.e., the text “The pre-printed opposition form provided may be used, but it is not obligatory and marks will not be lost if it is not used.” has been deleted from the Rule.

No further information is available yet as to the reasons for this change and the effects, e.g., as to whether the pre-printed opposition form will still be handed out as part of the C paper, whether it will be allowed to bring (and hand-in) a copy yourself to the exam (probably not in view of Art. 6 and 9(d) from the Instructions to candidates concerning the conduct of the European qualifying examination), or whether it is still necessary to provide all the infornation usually provided by candidates on the form to get an admissible opposition (esp. the information referred to in Art. 99(1), Rule 76(2)(c) and Rule 77(1) EPC) and a signature.

(15.08.2019)

Update 30.09.2019:
The following Notice from the Examination Board of the European qualifying examination (EQE) was published om the EQE website today:


C 2019: first impressions?

To all who sat the C-paper today:

What are your first impressions to this year's C-paper? Any general or specific comments?

How did this year's C-paper compare to the C papers of 2013 - 2018 (assuming your practiced those)?

Any pleasant and/or unpleasant surprises?

The paper and our answers

The C paper is available in all three languages from the EQE website, Compendium, Paper C.

We will give (the core of) our answer after we have received the paper, made the paper, and completion of our internal review. See here.

We look forward to your comments!

Comments are welcome in any official EPO language, not just English. So, comments in German and French are also very welcome!
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 03-03-2018 03:03"), whereas using your real name or a pseudonym 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.


Paper C 2017 Corkscrew

Here our fast attempt to C 2017 (paper here in EN and FR):

Claim 3(2): Added Subject-matter, Art.100(c), Art.123(2), metal necessary [0014]

Effective dates:
Cl. 1, 2, 3(1),4: P1 = 08.04.2010
Cl. 5-7: P2 = 28.03.2011

List of Evidence:
A2, A3, A5, A6: Art.54(2) all claims
A4 (the fair, not the document): Art.54(2) for claims 5-7

Other attacks
Claim 1: inv. step A6+A2, cork more stable, alternative solution (no spring)
(NA5 doesn't work. ridges not helical, not cork engaging, pitch undefined)

Claim 2: I've changed this based on the discussion below.
First option: inv. step A5 + A6 + A2
Alternative: inv. step A6+A2+A5, less force/effort for cork removal
(A3 misses the effect)
Probably only one option required. Probably 1st option is preferred.

Claim 3(1): inv. step A6+A2, A6 is already PET

Claim 4: inv. step A6+A2+A3, clover shape or 3/4 lobs from A3, better grip
(T641/00 doesn't work, technical effect present)

Claim 5: Nov A4 (A2 as evidence for reduced friction)
(NA2 doesn't work, no disc, no straight portion or no spiral portion)
(NA5 doesn't work, no coating on the spiral portion)

Claim 6: inv. step A4+A2, particularly good material for reducing friction, alternative for PFC
(A5+A2 may be possible, easier insertion, weaker, A5 not CPA)
(A4+A5 does not work, A5 misses the effect)

Claim 7: inv. step A4+A2, 'lower half', 'smoother insertion' (A2 [0005]), 'expensive' (A2 [0006]), compromise between low cost and low friction
(A5+A2 may be possible, easier insertion, weaker, A5 not CPA)

Looking forward to your comments, 

Joeri Beetz, Jelle Hoekstra

(c) DeltaPatents 2017

Closest prior art for Claim 3 in paper C 2016

There has been some discussion around what should be the closest prior art for Claim 3 in paper C of EQE 2016. We received attacks on Claim 3 starting from A3, A5, and A6. In this post we'll review the arguments for selecting the closest prior art in Claim 3.

Paper C 2016 - Reusable cooling device

Paper C of the EQE of 2016 provides us with an excursion into cooling devices for horses. My first impression is that this paper should be doable in the time provided. Although the number of annexes is a bit large (7), one of them quickly disappears when making the paper and another is 54(3) for most of the claims.

Below is an indication of our solution. Note that in a full solution more details need to be given.

C 2016: First impressions?


To all who sat the C-paper today:

What are your first impressions to this year's C-paper?
Any general or specific comments?

Was the number of claims as expected, or more, or less? And the number of prior art documents?
Were the various attack types well balanced - novelty, inventive step, added subject-matter, ...?
Was the described technology well understandable? For electronics/electricity attorneys, mechanics attorneys, chemists, biotech attorneys, ...?

How many marks do you expect to have scored?
What is your expectation of the pass rate and the average score?
How did this year's paper compare to the 2013, 2014 and 2015 papers (assuming your practiced those)

The paper and our answers

Copies of the paper will be provided on this blog as soon as we have received copies of the papers, in all three languages here (English, French and German).

The core of our answers will be given as soon as possible in a separate blog post.

We look forward to your comments!
Comments are welcome in any official EPO language, not just English. So, comments in German and French are also very welcome!

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 03-03-2015 03:03"), whereas using your real name or a pseudonym 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.

Please post your comments as to first impressions and general remarks to this blog.
Please post responses to our answer (as soon as available) to the separate blog post with our answer.
Thanks!


Jelle, Sander, Nico, Joeri, Gregory

Examiner report EQE Paper C 2015 available

The Examiner report for Paper C of the 2015 EQE is available on the EPO website. The official answer seems to correspond with our preliminary answer given just after the Exam.


Based on the report it is not entirely clear how much marks were available for the novelty attack on Claim 1 based on the oral disclosure related to A2. The possible solution includes this novelty attack. However the introduction gives the impression that only two novelty attacks were required, but that 'marks were available'. We may hear more at the annual meeting of EQE tutors and the EQE committee.

EQE Paper C 2015 - Carving out a solution


After the ski of paper B we get snowboards with paper C (English, French, German). Candidates faced claims with different dates, admissibility problems, added subject matter, multiple novelty attacks and the usual agonizing over the closest prior art.

Claim 1

This claim is a very broad, and gives little information on the relationship between the various elements. This should be used to do no less than three novelty attacks: a novelty attack on 54(3) document A6, a novelty attack based on A5 and a novelty attack based on the trade show Ski, Hop and Jump as evidenced by A2.

The novelty attack based on A2 is quite weak, as we hardly have evidence for the disclosure. The answer should make this clear, by presenting what little evidence we have now and offering to present additional evidence.

Claim 2

The novelty attacks of Claim 1 do not extend to Claim 2. Note, that the snow board of A2 is not unidirectional.

This leaves us with inventive step attacks. There are two potential closest prior arts: A2 and A3.

Starting from A3 would lead to a conventional inventive step attack with A4 as combining document.

Starting from A2 we have a number of problems. In theory we could finish this attack starting from A2 and combining with common general knowledge to change to board from freestyle to unidirectional. However, there are several drawbacks for this approach. First of all, evidentiary A2 is a weak document. Second, changing from freestyle to unidirectional may be quite a change. As the core determines the shape of the board, the entire board has to be thrown away and one has to start again from scratch.

Between these two options, the attack A3+A4 seems stronger, so we opt for this one.

Claim 3

There are no novelty attacks. Candidates for closest prior art are A2 (which for this claim is much stronger, as Claim 3 has a later effective date), and A3. Both documents miss the matrix, but A3 misses much more. Moreover, with A3 we have the problem of starting with the wrong type of snow board (unidirectional instead of freestyle). The attack based on A2 + A6 seems to work fine.

Claim 4

This is an 'or' claim because it refers back to two different claims: claims 2 and 3. These two variants should be attacked separately. Claim 4(3) was added during prosecution but does not have support. It can be attacked under A. 100(c). Claim 4(2) refers back to Claim 2 for which we already have an inventive step attack. Fortunately, the new feature of Claim 4 is part of the closest prior art, so the attack for claim 2 can be extended to claim 4(2).

Claim 5

This claim introduces a claimed object, a damper instead of a sports article. We find dampers in A2, A3, and A5. A2 is a weak document here, and misses the sensing, the filtering, and the frequencies. We discard this option. A3 shows sensing, but not together with dampening. A3 shows filtering but only for sensing not for dampening. A5 on the other hand has all features except the correct frequency. Moreover, A5 explains that the frequency can easily be changed, and that the damper may be used for other sports articles. It appears that A5 is thus the better closest prior art, A3 is then used as the combining document. A potential weak point of an attack based on A5+A3 is that A5 is only concerned with longitudinal waves whereas A3 needs damping for torsional waves. In the end the combination A5+A3 seems easier to make then the reverse one, so we opt for this.

Claim 6

There are two potential closest prior arts for this claim: A2 and A3. Although, easy to miss, A2 actually has every feature of claim 6 except the measuring step. A3 on the other hand, has the measuring step but also a teaching away against the piezoelectronic damper. The combination A2+A3 works thus much better than starting from A3.

In summary, our attacks are:

Claim 1: Novelty A2, A5, A6
Claim 2: Inventive step A3+A4
Claim 3: Inventive step A2+A6
Claim 4(2): Inventive step A3+A4
Claim 4(3): Added subject matter
Claim 5: Inventive step A5+A3
Claim 6: Inventive step A2+A3


Sander, Jelle, and Joeri

Here now also our unique analysis sheet, used in our methodology courses and model solution for all papers. Also this year it lead to the solution in a straightforward way, but the exam was a lot of work.

© Copyright DeltaPatents, 2015
All rights reserved. No part of this answer may be reproduced, used in any way for generating further course material or updates, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without written consent of DeltaPatents.
The answer is made available for personal use only.

Strict rules of conduct for the exam

We have now received a clear confirmation of the policy during the exam regarding electronic devices from the EQE secretariat:

Electronic devices are strictly forbidden in the examination hall, no matter if they are turned off or not.
Any candidate found with such a device in the hall is clearly breaching the regulations, and he/she might face disqualification from the exam.
The only electronic devices which may be allowed in the examination hall are medical devices that candidates need for health reasons.
We recommend that candidates leave their mobile phone at their hotels if they are travelling.
There are no cloakrooms at the examination centre, however we will provide envelopes (you will have to write your name on it) where the device can be placed and it will be put in a box.
The box will be outside of the examination hall. Neither the Examination centres nor the Examination Secretariat  will take any responsibility for loss or damage to the items stored in this box.
This is probably not the solution that you wanted, but this is becoming common practice for exams. A simple watch with an analogue dial is the only thing you can have with you.

So either leave them all at home, or in the hotel, or car, or in train station locker.

And finally: we wish all candidates good luck!!!

Ranges and purposive selection

Amongst candidates for the EQE C paper of 2010 a lot of discusion is going on about how to attack the ranges in claims 4 and 5. Is it possible to do a novelty attack or do we need inventive step (workshop modification, equivalent alternative or maybe a second document). Today I will give you some advice about how to deal with ranges in the exam (in your daily patent work, you should do the same).

The situation in the exam was as follows:
- Claim 4: 1 mm - 3 mm
- Claim 5(4): less than 1.8 mm (thus 1 mm - 1.8 mm)
- A3: 0.1 mm - 20 mm, 0.5 mm - 2.5 mm and 1.5 mm - 2 mm
- A4: 0.1 mm - 20 mm
- A6: 0.1 mm - 4 mm, 0.9 mm - 4 mm and 0.1 (and/or 0.9) mm - 2 mm

The relevant part of the Guidelines is GL C-IV 9.8 (ii) which gives three criteria for considering a sub-range selected from a broader numerical range to be novel.

EQE 2010: claim 1, 54(2)

With the new DeltaPatents website online we can start working at the content again. As promised, I will say something about the 54(2) attack on claim 1 of last month's EQE exam.

A 54(2) attack may either use novelty or inventive step. Before selecting a closest prior art or novelty destroying embodiment we first determine the claimed object, i.e. a liquid dispenser with a gaseous propellant. Then we try to find this object in the available 54(2) documents (A2, A3, A5). A2 is about a gas dispenser (first line of [0001]), A3 uses an aluminium bottle (first line of [0001]) and in A5 the trapping material is not coated on the wall ([0005] in combination with item 56 in the figure). It is clear that we cannot do a novelty attack and have to select a closest prior art.

EQE C 2010: claim 1, 54(3)

Claim 1 claims a liquid dispenser with a gaseous propellant. For finding all required attacks on this claim we first have to find out what documents we are allowed to use. After determining the effective date of claim 1 (filing date LU1) and looking at the relevant dates of the Annexes, we know that there are two 54(3) documents, A4 and A6, and three 54(2) documents.

First we try to find all 54(3) attacks by looking for claim features not disclosed in A4 or A6. For A6 the situation is pretty clear. A6 only discloses a valve and not a dispenser. We can (for now) disregard this document.

EQE 2010 - First impressions

The work is done. Now we only have to wait a few months for the results. Of course, also the DeltaPatents tutors have tried to come up with a complete and correct solution to this year's C paper. Starting from today we will, on a regular basis (twice a week) give some of our thoughts and opinions about some important aspects of this exam.

You are free to discuss our opinions in the comments or to contact us with specific viewpoints or questions via e-mail.

Today my first impressions of the C paper of 2010:
  • Claims 1 to 3 can be attacked in a relatively straightforward manner. The 54(3) attack on claim 1 may be easy to miss, but the inventive step attacks follow normal problem-solution patterns. It is however important that you know how to deal with partial problem situations
  • Claims 4 to 6 are more tricky. The exam committee played a lot with effective dates and prior rights. However, when you use a structured approach for determining effective dates and the usability of annexes, finding the right attacks is certainly possible.
  • Another important issue for claims 4 and 5 is the use of ranges. Different prior art documents describe different ranges. Many prior art ranges are, at least partially, overlapping the claimed ranges. It may be difficult to decide how to attack the ranges in the claims. Novelty? Inventive step?

The front page of Annex 1

The front page may reveal interesting information:
  • the proprietor: is there another annex of the same proprietor, be extra alert for 'first application' issues
  • priority country: WTO state and Annex 1 is a Euro-PCT, check the transitional provisions
  • priority claimed from a US continuation: invalid, it can never be the first application;
    from a US continuation in part - only valid for the later added matter
  • warning that claims have been added after filing (it must thus be under EPC2000): all claims must be examined also for added subject-matter
  • a B1 publication: if the client indicates that a central limitation has taken place (and what) be aware that you must attack the limited claims and not the claims of the B1 publication

EQE 2010 - possible topic

The last couple of years added subject-matter has not been tested in a complex situation; the issue of disclaimers has also not been in the C exam following G1/03 and G2/03. Combining those two can lead to interesting issues in the exam. For example, the client may be upset that the proprietor introduced a disclaimer during examination. Your first assessment of Annex 1 may reveal that the disclaimere was introduced to restore novelty over an Art.54(3) prior right (e.g. Annex 3). So, it looks like this is an allowable disclaimer. Later you may discover that a normal Art.54(2) disclosure, e.g. Annex 4, which is not an accidental disclosure, already discloses the disclaimed subject-matter. The disclaimer is thus not allowable and vioates Art.100(c) (in view of Art.123(2)).

Any other interesting topics?