European Patent Office

T 0094/24 (Indentation in a hearing aid/GN HEARING) of 19.01.2026

European Case Law Identifier
ECLI:EP:BA:2026:T009424.20260119
Date of decision
19 January 2026
Case number
T 0094/24
Online on
17 April 2026
Petition for review of
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Application number
15197184.3
IPC class
H04R 25/00
Language of proceedings
English
Distribution
No distribution (D)
OJ versions
No OJ links found
Other decisions for this case
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Abstracts for this decision
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Application title
Hearing aid with a flexible carrier antenna and related method
Applicant name
GN Hearing A/S
Opponent name
Oticon A/S
Board
3.5.05
Headnote
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Relevant legal provisions
European Patent Convention Art 56European Patent Convention Art 100(a)European Patent Convention Art 112(1)(a)European Patent Convention Art 113(1)European Patent Convention R 106Rules of procedure of the Boards of Appeal 2020 Art 012(3)Rules of procedure of the Boards of Appeal 2020 Art 013(2)Rules of procedure of the Boards of Appeal 2020 Art 15a(1)Rules of procedure of the Boards of Appeal 2020 Art 021
Keywords
Oral proceedings by videoconference (no): in-person hearing more appropriate in view of substantive amount of submissions
Inventive step - main request (no): no technical effect credibly achieved over the whole scope claimed
Admittance - auxiliary requests 1 to 3 (no): no "exceptional circumstances" and detrimental to procedural economy
Referral of questions to the Enlarged Board of Appeal - (no): no "unique application" of the problem-solution approach by Board 3.5.05
Objections under Rule 106 EPC - dismissed: no violation of proprietor's right to be heard
Federal Court of Justice (BGH)X ZR 51/21decision of 13 June 2023 - Schlossgehäuse
UK High CourtSandvik IP AB v Kennametal[2011] EWHC 3311
UPC_CoA_464/2024of 25 November 2025
Catchword
1. Where a distinguishing feature does not credibly contribute to the solution of a technical problem, it normally constitutes an "arbitrary modification" of the prior art which cannot support an inventive step. This principle applies independently of whether the feature is technical or non-technical in nature (see Reasons 3.4).
2. There is no "customary practice" in appeal proceedings that grants a party the right to have written submissions filed one month prior to oral proceedings automatically admitted into the appeal proceedings. Consequently, reliance on such an alleged "practice" cannot justify a derogation from the explicit provisions of Article 13(2) RPBA (see Reasons 4 and 5).
Citing cases
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Order

For these reasons it is decided that:

1. The request for referral to the Enlarged Board of Appeal is refused.

2. The decision under appeal is set aside.

3. The patent is revoked.