T 0672/24 of 23.01.2026
- European Case Law Identifier
- ECLI:EP:BA:2026:T067224.20260123
- Date of decision
- 23 January 2026
- Case number
- T 0672/24
- Online on
- 11 February 2026
- Petition for review of
- -
- Application number
- 17797938.2
- 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
- Voltage droop-based method in a power transmission system
- Applicant name
- Hitachi Energy Ltd
- Opponent name
- General Electric Technology GmbH
- Board
- 3.4.02
- Headnote
- -
- Relevant legal provisions
- European Patent Convention Art 100(c)European Patent Convention Art 123(2)Rules of procedure of the Boards of Appeal Art 13(1)Rules of procedure of the Boards of Appeal Art 13(2)European Patent Convention Art 54(2)European Patent Convention Art 56
- Keywords
- Grounds for opposition - added subject-matter
Grounds for opposition - main request (yes)
Amendments - added subject-matter
Amendments - auxiliary requests 1 to 27 (yes)
Amendment after summons - taken into account
Amendment after summons - auxiliary request 28 (no)
Novelty - auxiliary request 39 (yes)
Inventive step - auxiliary request 39 (yes) - Catchword
- -
- Cited cases
- -
- Citing cases
- -
Order
For these reasons it is decided that:
1. The decision under appeal is set aside.
2. The case is remitted to the opposition division with the order to maintain the patent as amended with the following claims and a description to be adapted thereto:
Claims:
No. 1 to 12 according to auxiliary request 39 filed with the letter dated 14 August 2025