T 0967/23 (Overvoltage protection/OTIS) of 20.04.2026
- European Case Law Identifier
- ECLI:EP:BA:2026:T096723.20260420
- Date of decision
- 20 April 2026
- Case number
- T 0967/23
- Online on
- 2 July 2026
- Petition for review of
- -
- Application number
- 13899570.9
- IPC class
- H02M 3/335B66B 5/00
- Language of proceedings
- English
- Distribution
- No distribution (D)
- Download
- Decision in English
- OJ versions
- No OJ links found
- Other decisions for this case
- -
- Abstracts for this decision
- -
- Application title
- SYSTEM AND METHOD FOR LIMITING OVER-VOLTAGE IN POWER SUPPLY SYSTEM
- Applicant name
- Otis Elevator Company
- Opponent name
- KONE Corporation
- Board
- 3.5.01
- Headnote
- -
- Relevant legal provisions
- European Patent Convention Art 54European Patent Convention Art 56European Patent Convention Art 114(2)Rules of procedure of the Boards of Appeal Art 12Rules of procedure of the Boards of Appeal Art 13
- Keywords
- Amendment to appeal case - (not admitted
Amendment to appeal case - new inventive step attack should have been filed during opposition proceedings)
Novelty - (main request
Novelty - yes)
Inventive step - (main request
Inventive step - yes) - Catchword
- The question of whether a fresh ground of opposition has been raised - and, therefore, of whether the agreement of the patentee is required - has to be distinguished from the question of whether there has been an amendment to a party's appeal case. The admissibility of amendments represents a separate, independent issue and is subject to the discretion of the board under Article 114(2) EPC and Articles 12 and 13 RPBA.
- Citing cases
- -
Order
For these reasons it is decided that:
The appeal is dismissed.