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  1. Home
  2. T 2057/13 19-06-2017
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T 2057/13 19-06-2017

European Case Law Identifier
ECLI:EP:BA:2017:T205713.20170619
Date of decision
19 June 2017
Case number
T 2057/13
Petition for review of
-
Application number
06008897.8
IPC class
D06F 37/30
Language of proceedings
EN
Distribution
NO DISTRIBUTION (D)

Download and more information:

Decision in EN 341.18 KB
Documentation of the appeal procedure can be found in the European Patent Register
Bibliographic information is available in:
EN
Versions
Unpublished
Application title

Drum type washing machine

Applicant name
LG Electronics Inc.
Opponent name
Daewoo Electronics Corporation
Board
3.2.06
Headnote
-
Relevant legal provisions
European Patent Convention Art 87(1) 1973
European Patent Convention Art 54(1)
Rules of procedure of the Boards of Appeal Art 13(1)
European Patent Convention Art 123(2)
Keywords

Priority - same invention (no)

Priority - publication during the priority interval

Priority - main request (no)

Novelty - public prior use (no)

Late-filed request - request clearly allowable (no)

Remittal to the department of first instance - (no)

Catchword
-
Cited decisions
G 0002/98
Citing decisions
-

I. European patent No. 1 707 661 was revoked by the opposition division by way of its decision posted on 4 April 2013. The opposition division found that the the subject-matter of claim 1 of the main request and of the auxiliary request lacked a right to priority from

P1 (KR 10-2002-0078337 (filed on 10 December 2002)

and therefore lacked novelty over the public prior use of a washing machine WD-R100C occurring between the priority date and the filing date of the patent, evidence of which was given in:

Appendix A: printouts of web pages A-1 to A-8

A1: printout of LG web page concerning advertising of washing machine model WD-R100C in Korean newspapers

A2: printout from Internet shopping platform Naver

A3: printout from Internet site "Wedding 119"

A4 and A5: newspaper advertisements dated 4 October 2003 in two Korean newspapers

A6: a report on a price survey conducted from 6 to 10 October 2003, for certain consumer products, among them washing machines with the product code WD-R100C, published on the Internet site of the "Korea National Council of Consumer Organizations"

A7: printout from LG Customer Service web page

A8: printout from Internet shopping platform "My Magin MM.co.kr",

Appendix B: a set of photographs documenting the dismantling of one such washing machine bearing a label with a manufacturing month of October 2003,

Appendix C: a statutory declaration by Su-Hiang Kang concerning the disassembly of the washing machine of appendix B.

II. The opponent withdrew its opposition with letter of 1 March 2013.

III. The appellant (proprietor) filed an appeal against the decision to revoke the patent and in its grounds of appeal, requested that the decision be set aside and the patent be maintained (as a main request) in the form as granted, or auxiliarily according to one of a first and a second auxiliary request. Furthermore the appellant requested that the case be remitted to the opposition division if the Board wished for other objections to be addressed.

IV. The Board summoned the appellant to oral proceedings and in its communication sent as an annex to the summons, the Board stated that the subject-matter of claim 1 did not seem to be entitled to priority from P1 and was thus considered not new. With respect to the auxiliary requests, the Board considered that the subject-matter of claim 1 of both the first and second auxiliary requests contravened Article 123(2) EPC.

V. With letter dated 15 May 2017 in response to this summons, the appellant filed an affidavit of Mr. Choi Kang Mo and requested that it be admitted into the proceedings. Further, the appellant submitted replacement first and second auxiliary requests for maintenance of the patent in an amended form.

VI. Oral proceedings took place on 19 June 2017. During the oral proceedings the first auxiliary request submitted with the letter dated 15 May 2017 was withdrawn and the second auxiliary request became the sole auxiliary request.

The appellant requested

that the decision under appeal be set aside and the patent be maintained as granted (main request);

auxiliarily

that the patent be maintained in amended form on the basis of the second auxiliary request , filed with letter dated 15 May 2017.

Furthermore the appellant requested that

the case be remitted to the Opposition Division if the Board wished to address objections under Article 100(c) EPC;

and that

the affidavit of Mr. Choi Kang Mo be admitted into the proceedings.

VII. Claim 1 of the main request reads as follows:

"A washing machine comprising:

a tub (2) configured to hold washing water therein;

a drum (3) rotatably arranged in the tub;

a motor mounted on a rear wall of the tub, the motor having a rotor and a stator;

a bearing housing (7) including a bearing supporting part (7a) and a stator fastening part (7b), the bearing supporting part holding at least one bearing (600a; 600b) to support a shaft (4) of the motor; and the stator fastening part allowing the stator (6) to be mounted thereon and having a radial outward extension from the bearing supporting part, characterised in that the stator fastening part (7b) includes stepped areas 70b-1 each having at least one step in the radial outward direction of the outward extension and flat areas 70b-2 each between adjacent stepped areas 70b-1, wherein the stepped areas 70b-1 and the flat areas 70b-2 are connected to each other, respectively."

Claim 1 of the auxiliary request differs from claim 1 of the main request in that the feature concerning the bearing housing reads as follows:

"a bearing housing (7), integrated with the rear wall of the tub and including a bearing supporting part (7a) and a stator fastening part (7b),"

VIII. The arguments of the appellant can be summarized as follows:

Affidavit

The affidavit should be admitted into the proceedings because it did not introduce new facts and brought only light to the interpretation of P1 by the skilled person. It did not make technical sense for the skilled person to interpret the tub and the bearing housing in P1 as a single piece.

Main request - Novelty

The subject-matter of claim 1 of the main request had a valid right to priority from P1. The skilled person taking into consideration the prior art disclosed in Figure 2 as well as paragraphs 17 and 19 would have considered that a tub made as a single unit made no sense, because such a unitary tub would need to have been reinforced with a supplementary bracket which was not present in the disclosure of the invention. Moreover, the tub in P1 was made of separate elements, the rear of the tub 58 and the side section 59. This was clearly visible in Figure 4, as this disclosed the complete element 58. In addition, Figure 4 showed what was to be understood from Figure 3 and allowed the skilled person to identify and correct two obvious errors and one inconsistency present in Figure 3:

- that the rear part of the tub 58 was not integral with the side section 59 of the tub 60,

- the bearing housing was not contiguous with the tub rear wall but was separate and subsequently integrated,

- fastening holes 66 should have been interpreted as part of the bearing housing as they were depicted as being separate from the rear wall 58.

The priority was valid such that the public use cited against claim 1 was not prior art.

Auxiliary Request

The subject-matter of claim 1 of the auxiliary request did not extend beyond the content of the application as filed, such that the request should be admitted. The disclosure of the amended features of this request was to be found in paragraphs 30 and 31 of the application as filed. The skilled person would infer from the specification as a whole that the bearing housing was integrated with the tub and that the other features were just accessory to the main idea of integration.

1. Admittance of the affidavit by Mr. Choi

1.1 The affidavit contains an explanation of the background to the contents of P1 as seen by Mr Choi, one of the inventors named in P1 and an employee of the appellant. The Board has no reason to doubt that, as stated in point 1 of the affidavit, Mr. Choi is a person who knows the washing machine production industry very well. However, for the purpose of assessing the unambiguous disclosure of P1, Mr Choi's point of view is not the same as that of an impartial skilled person reading P1 to assess its content. Mr Choi, as an inventor named in P1, may indeed have a particular view of how he had understood P1 and what P1 was intended to convey to a reader, but this does not mean that an independent skilled person confronted with P1 receives the same information. Thus, the Board must assess the contents of P1 in an impartial manner from the perspective of an independent skilled person, whereby the statements of Mr Choi do little to assist in this process.

1.2 It is also noted that the affidavit was filed for the first time with the appellant's letter of 15 May 2017 in reply to the Board's communication under Article 15(1) of the Rules of Procedure of the Boards of Appeal (RPBA) dated 14 February 2017. The affidavit does not address an issue taken up by the Board for the first time in its communication, but simply constitutes new evidence filed in respect of the contents of the priority document P1, a point which had already been raised with the notice of opposition. According to Article 13(1) RPBA, it lies within the discretion of the Board to admit any amendment to a party's case after it has filed its grounds of appeal or reply, as to which it is stated that "the discretion shall be exercised in view of inter alia the complexity of the new subject-matter submitted, the current state of the proceedings and the need for procedural economy." Hence, such provisions apply to the request to admit the affidavit.

1.3 At least since the affidavit is not prima facie relevant for assessing the knowledge of the skilled person when reading P1, the Board exercised its discretion under Article 13(1) RPBA not to admit the affidavit of Mr Choi into the proceedings.

Main request

2. Priority

2.1 According to Article 87(1) EPC 1973 the right of priority may be claimed only in respect of the same invention. Following the opinion of the Enlarged Board of Appeal in G2/98 (OJ 2001, 413), the requirement of "the same invention" means that the skilled person can derive the subject-matter of the claim in question directly and unambiguously, using common general knowledge, from the previous application as a whole.

2.2 In the present case, determining whether the same invention is disclosed in P1 involves, at least in part, determining whether or not it is directly and unambiguously derivable from P1 that a bearing housing includes a stator fastening part, as defined in claim 1.

2.3 The Board finds that Figure 4 of P1 does not unambiguously disclose a separate item or element 58, termed the rear of the tub (see e.g. translation of P1 on paragraph 33), that can be seen as a bearing housing. Whilst Figure 4 indeed depicts only a disc-shaped element 58, it is clear for the skilled person when taking into account the whole disclosure of P1 that this rear of the tub 58 is itself an integral part of the tub 60 formed in one piece therewith, and not a part which is integrated in some other way. Figure 3 discloses items 58 and 59 as making part of the tub 60 by using the same hatching for both, and displaying no separation line between them. In addition, the Figure shows the corresponding reference signs in a way that the skilled person would interpret as items 58 and 59 being sub-items of the item 60 (i.e. the tub). Further, the brief description of the drawings on page 14-4 states that "Figure 4 illustrates an oblique drawing of the tub", which further points to Figure 4 showing a part of item tub 60 and not in some way being a separate item that would need to be coupled to the rest of the tub.

2.4 Paragraphs 30 and 33 of P1 also describe that the tub 60 comprises a front part (which is not shown) as well as the side sections 59 and rear section 58 and that the through hole 71 for the shaft 64 is formed in the centre of the rear 58 of the tub, thus giving the impression that the tub is one single piece. While it is true that the expression "integrated with" in paragraphs 27, 33, 38, 40 might refer to the action of integrating two pieces together in the sense of an attachment of one part to another, the skilled person would not be able to interpret "rear of the tub integrated with a bearing housing" or "bearing housing integrated with the rear of the tub" so as to mean two different parts put together, at least not unambiguously. Such an interpretation of P1 would also not be consistent with the rest of the description and Figure 3 of P1.

2.5 The Board agrees that Figure 3 contains obvious errors and inconsistencies. However, the Board finds that the skilled person faced with Figure 3 would not then turn to Figure 4 and immediately identify two obvious errors and one inconsistency in Figure 3. It appears at least more plausible, in light of the description of P1, that one obvious error would be seen, in particular that the fastening holes are integral with the tub rear wall and should therefore not have a dividing line. These parts of the drawing are very small as compared to the bearing housing 70 shown to be formed in one piece with the rear wall 58 which is far larger. This interpretation is also supported by paragraph 41 that refers to the fastening holes as being the screw fastening holes "of the tub" rather than merely of a rear wall thereof.

The interpretation of the appellant that the bearing housing is not unitary with the tub would require more corrections or create even more inconsistencies:

- if the whole rear of the tub would be a separate item acting as the bearing housing, a dividing line between the side section and the rear section of the tub would be required in addition to the correction of the inconsistency with the fastening holes;

- if the bearing housing were to be divided from the rear wall in the way suggested on page 5 of the letter dated 15 May 2017, then this would create more inconsistencies with Figure 4 such as the lack of a hatched surface in Figure 3 representing the thickness of the reinforcing ribs.

The Board also notes that P1 discloses a tub according to the state of the art in Figure 2 and paragraphs 17 and 24, the rear and side sections of which are made of a single piece and that Figure 2 contains also the aforementioned inconsistency in the fastening holes, which are (wrongly) separated from the rear of the tub.

2.6 The embodiment of Figure 2 in P1 concerns a washing machine according to the prior art and discloses a bracket 21 "to reinforce the rigidity of the tub" and "to insure that the tub is firmly fixed to the rear" as stated in paragraph 19. The appellant is of the opinion that it would make no sense for the skilled person in the art to eliminate the bracket and make the rear of the tub and the bearing housing in a single piece as this would make the tub weaker. The appellant considers that the only logical solution for a skilled person reading P1 would be to infer the existence of a distinct bearing housing which incorporates the reinforcing ribs with the stator fastening holes and which is integrated with the rear of the tub. The Board cannot follow this argument as the disclosure of P1 as a whole contradicts this. As stated in paragraphs 24 to 26 of P1, the problem to be solved in P1 seems to be not only to reinforce the strength between the tub and the bearing housing but also to simplify the assembly process of tub and drum. It is stated in paragraph 41 that the motor (stator) is directly fastened to the screw fastening holes of the tub, thus the stator is mounted directly to the tub and not to a separate distinct bearing housing. Paragraph 41 also states that this direct mounting of the motor to the tub does not require a bracket, which makes the assembly simpler, cheaper and requires less parts.

2.7 From the whole disclosure of P1, the skilled person would thus infer that the tub side section 59, the tub rear section 58 and the bearing housing 70 are formed as a unitary element of continuous material and that the screw fastening holes for the stator are formed in the tub.

2.8 The subject-matter of claim 1 is thus not directly and unambiguously derivable from P1 as a whole, since P1 does not disclose the feature "a bearing housing (7) including a bearing fastening part and a stator fastening part (7b)", such that the subject-matter of claim 1 does not have a right to priority from P1.

3. Novelty

3.1 Since it was not contested by the appellant that, in the event that the subject-matter of claim 1 lacked a right to priority from P1, the washing machine with model number WD-R100C constituted a public prior use, as exemplified in Appendices A, B and C, and comprised all features of claim 1 of the patent in suit, and since the Board finds no reason to conclude otherwise, the subject-matter of claim 1 lacks novelty (Article 54(1) EPC), as a result of which the appellant's main request is not allowable.

4. Request for remittal

4.1 The appellant requested that the case be remitted to the Opposition Division if the Board wished to address objections under Article 100(c) EPC. As also acknowledged by the appellant, Article 100(c) EPC applied only to the main request as this concerns the patent in the form as granted and which the Board already considers not allowable as a result of lack of novelty of the subject-matter of claim 1. As the main request is already not allowable for that reason, there is no need to address any possible further objection under Article 100(c) EPC. The request for remittal is thus rejected.

Auxiliary Request

5. Admittance of the auxiliary request

5.1 This request was filed in reply to the communication of the Board. According to Article 13(1) RPBA, it lies within the discretion of the Board to admit any amendment to a party's case after it has filed its grounds of appeal or reply, as to which it is stated that "the discretion shall be exercised in view of inter alia the complexity of the new subject-matter submitted, the current state of the proceedings and the need for procedural economy." Hence, such provisions apply to the auxiliary request.

5.2 The auxiliary request is based on the main request with the addition of the passage "integrated with the rear wall of the tub" from paragraph 31 of the A2-publication (page 14, line 11 of the application as filed). This paragraph belongs to a longer passage disclosing the embodiment of Figures 4 to 9 of the invention which comprises further features disclosed in combination which are however not included in claim 1. These features include inter alia the housing made of metal, the tub of plastic and that both are integrated through injection-moulding. These features are disclosed in a functional and structural relationship with the feature "integrated with" in claim 1 and involve a specific manner of integration within the context of the embodiment and cannot be considered merely accessory to the concept of integration as argued by the appellant. Other possibilities of integration are not disclosed.

5.3 Thus, the mere addition of the feature "integrated with the rear wall of the tub" in claim 1 does not correspond to the features disclosed in combination with each other within the particular context of that embodiment. Accordingly an inadmissible intermediate generalisation of the disclosed embodiment results. A more general disclosure corresponding to the combination of only those features now defined in claim 1 is not to be found elsewhere.

5.4 Since the subject-matter of claim 1 of the auxiliary request thus at least prima facie fails to fulfil the requirement of Article 123(2) EPC, the Board exercised its discretion under Article 13(1) RPBA not to admit the request into the proceedings.

Order

For these reasons it is decided that:

The appeal is dismissed.

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