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https://www.epo.org/en/node/t101998eu1
  1. Home
  2. T 1998/10 (Layer assembly/L'AIR LIQUIDE, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude) 19-11-2013
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T 1998/10 (Layer assembly/L'AIR LIQUIDE, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude) 19-11-2013

European Case Law Identifier
ECLI:EP:BA:2013:T199810.20131119
Date of decision
19 November 2013
Case number
T 1998/10
Petition for review of
-
Application number
05813697.9
IPC class
B01D 71/02
C01B 13/02
B01D 53/22
Language of proceedings
EN
Distribution
NO DISTRIBUTION (D)

Download and more information:

Decision in EN 438.93 KB
Documentation of the appeal procedure can be found in the European Patent Register
Bibliographic information is available in:
EN
Versions
Unpublished
Application title

CATALYTIC MEMBRANE REACTOR

Applicant name
L'AIR LIQUIDE, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude
Opponent name
-
Board
3.3.05
Headnote
-
Relevant legal provisions
European Patent Convention Art 84
European Patent Convention Art 111(1)
European Patent Convention R 103
European Patent Convention R 111(2)
Guidelines_E-X, 5
European Patent Convention Art 113(1)
Keywords

Reimbursement of appeal fee - (no)

Reimbursement of appeal fee - appealed decision reasoned (yes)

Remittal to the department of first instance - (yes)

Catchword
-
Cited decisions
T 0571/03
Citing decisions
-

I. This appeal is from the decision of the examining division, posted on 26 May 2010, refusing European patent application EP 05 813 697.9.

II. In the reasons for this "decision according to the state of the file" concerning a main request and two auxiliary requests, reference was made to the communication dated 28 April 2010 in which

"the applicant was informed that the application does not meet the requirements of the European Patent Convention. The applicant was also informed of the reasons therein. The applicant filed no comments or amendments in reply to the latest communication but requested a decision according to the state of the file by a letter received in due time on 05.05.2010."

The application was thus refused.

III. The notice of appeal of the applicant (henceforth: the appellant) was filed by letter dated 7 July 2010. The statement of grounds of appeal was received under cover of a letter dated 1 September 2010 where the appellant not only maintained and defended all rejected requests, but also submitted an additional set of claims constituting a new first auxiliary request.

IV. The board issued a preliminary communication pursuant to Rule 100(2) EPC in which it informed the appellant of its provisional opinion. The board indicated the possibility of remitting the case to the department of first instance for further prosecution on the basis of the claims of the (new) first auxiliary request, which were considered to overcome all reasons for the refusal.

V. In its reply dated 8 November 2013, the appellant made the auxiliary request with the text according to the letter dated 1 September 2010 its new main request. The auxiliary request for oral proceedings was withdrawn.

VI. Claim 1 of the new main request reads as follows:

FORMULA/TABLE/GRAPHIC

FORMULA/TABLE/GRAPHIC

FORMULA/TABLE/GRAPHIC

FORMULA/TABLE/GRAPHIC

FORMULA/TABLE/GRAPHIC

The dependent claims 2 to 5 define preferred embodiments of the organized assembly of claim 1.

Claims 6 and 7 concern a reactor of non-zero internal volume for the production of synthesis gas, comprising either an organized assembly of tubular form, based on superposed layers of materials as defined in claims 1 to 5, or a combination of several of the said assemblies mounted in parallel.

VII. The arguments of the appellant may be summarized as follows:

The technical problem of the application was to improve the stability of the Catalytic Membrane Reactor (CMR) architecture. In order to solve this problem, the invention proposed an assembly comprising three layers (a dense layer, a porous layer and a catalytic layer) which were characterised in that they all comprised a perovskitic material comprising La and Fe. In this manner a chemical continuity among the layers was assured. Due to said chemical continuity the tendency of fissure and cracks at the interfaces of the layers was reduced and the CMR architecture was stabilized.

The independent claims thus contained the necessary features for solving the underlying technical problem.

A further objection of the examining division, concerning the alleged lack of clarity of the expression "the use temperature", was addressed by amending the claims.

Furthermore, the first instance procedure was flawed by a substantial procedural violation because the decision under appeal was not reasoned. The said decision only made reference to an earlier communication dated 28 April 2010 which in turn referred to the Written Opinion (of the ISA issued in re International application no. PCT/EP2005/056542) of 13 June 2007.

Requests

The appellant requested that the decision under appeal be set aside and a patent be granted on the basis of the claims filed with letter dated 8 November 2013 as a main request or, as an auxiliary measure, on the basis of the former main request or on the two auxiliary requests underlying the impugned decision.

VIII. Requeststhat the appeal fee be reimbursed on grounds of a substantial procedural violation.

1. Article 84 EPC

1.1 The impugned decision of the examining division refers to the division's communication dated 28 April 2010 which in turn refers to the Written Opinion (WO) of the ISA issued in re International application no. PCT/EP2005/056542.

1.2 From these documents, it becomes apparent that there were two reasons for the refusal of the application (all then pending requests):

a) An objection under Article 84 EPC (Article 6 PCT in combination with Rule 6.3 a)b)i)ii) PCT), raised in the Written Opinion, re item VIII, 4.2. The examining division considered that not all claimed materials - which allegedly represented an almost unlimited number of different perovskite-like compositions - solved the problem posed.

b) An objection under Article 84 EPC, raised in the communication dated 18 April 2010, point 2.2 related to the passage "....oxides which, at the use temperature, are...". It was not clear which compounds were embraced by formula II. Also the lack of clarity had an influence on the claim category. It was not clear whether a product or a process claim was at stake.

1.3 The board considers that the examining division, having taken into account the appellant's arguments in a preceding letter, did not maintain yet another objection under Article 84 EPC (Article 6 PCT) raised in the Written Opinion, re item VIII, 4.1, concerning the order of the layers (a), (b) and (c). As the board agrees with the appellant's arguments in this respect, there is no need to take this issue any further.

1.4 As regards the above-mentioned objection a), the appellant correctly pointed out that, in accordance with claim 1 of the new main request, each of the three mandatory layers of the claimed assembly comprises a perovskitic material comprising the elements La and Fe. By virtue of this common presence of a material of similar structure in all the layers, a certain degree of chemical continuity is achieved which limits the risk of delamination and cracks. Said feature is therefore essential for solving the problem of improving the stability of the layer system. In the absence of any counter-evidence, the appellant's argument is persuasive.

Therefore, the objection raised by the examining division in this respect cannot stand.

1.5 Regarding the above-mentioned objection b) relating to the expression "at the use temperature" , the board concurs with the opinion of the examining division that the claimed material cannot be characterised by reference to a "use temperature" which itself is not defined clearly.

However, the claims as amended in the appeal procedure define a use temperature of between 600°C and 1100°C and are thus considered to overcome this objection.

1.6 Therefore, the second objection on which the refusal of the application was based, is also rendered moot by the amended claims.

The decision must therefore be set aside.

2. Alleged procedural violation - reimbursement of the appeal fee

2.1 The appellant alleged that the contested decision - using EPO form 2061 for decisions according to the state of the file - was not reasoned within the meaning of Rule 111(2) EPC.

2.2 Rule 111(2) EPC stipulates that decisions of the EPO which are open to appeal shall be reasoned. According to the Guidelines for Examination in the EPO, E-X, 5, the reasons given in a decision should be "complete and independently comprehensible, i.e. generally without references".

2.3 It follows that in exceptionally plain cases the use of the standard form suggested by the Guidelines for decisions "according to the state of the file" and limiting itself to a reference to an earlier communication could be considered appropriate and sufficient for a decision to be reasoned (see for instance T 0571/03 of 22 March 2006, Reasons, points 13 to 15).

2.4 In the present case, the decision under appeal refers to a communication of the examining division dated 28 April 2010 which in turn refers to the section "Item VIII of the Written Opinion (WO) of the ISA" issued in examination of the underlying PCT application (whose text is identical to the corresponding text of the IPER).

Although the board would have preferred an independently fully reasoned, self-consistent decision, it nevertheless concludes that the objections leading to the refusal can be identified and understood from the references in an unambiguous manner and without undue guesswork.

Therefore, in the board's judgment, the reasoning of the decision of the examining division meets the requirements of Rule 111(2) EPC.

2.5 Therefore, a reimbursement of the appeal fee cannot be ordered ((Rule 103(2) EPC).

3. Remittal

Under the circumstances, the board finds it appropriate to exercise its discretion pursuant to Article 111(1) EPC to remit the case to the department of first instance for further prosecution.

Order

For these reasons it is decided that:

1. The decision under appeal is set aside.

2. The case is remitted to the department of

first instance for further prosecution.

3. The request for a reimbursement of the appeal fee is refused.

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