T 1638/23 of 02.12.2025
- European Case Law Identifier
- ECLI:EP:BA:2025:T163823.20251202
- Date of decision
- 2 December 2025
- Case number
- T 1638/23
- Petition for review of
- -
- Application number
- 19165778.2
- IPC class
- B01J 20/26B29B 7/42C08F 6/00B29B 9/06B29B 9/12C08J 3/075B29C 48/68C08F 220/06C08J 3/12C08F 2/10
- 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
- Polyacrylic acid (salt)-based water absorbent resin powder
- Applicant name
- Nippon Shokubai Co., Ltd.
- Opponent name
- Stockhausen Superabsorber GmbH
- Board
- 3.2.05
- Headnote
- -
- Relevant legal provisions
- European Patent Convention Art 100(c)European Patent Convention Art 123(2)European Patent Convention Art 83European Patent Convention Art 84European Patent Convention R 139
- Keywords
- Grounds for opposition - added subject-matter
Grounds for opposition - Main Request (yes)
Correction of error - immediately evident that nothing else could have been intended (no)
Amendments - added subject-matter
Amendments - Auxiliary Request 1 (yes)
Claims - clarity
Claims - Auxiliary Request 2 (yes)
Sufficiency of disclosure - Auxiliary Request 2 (yes) - Catchword
- -
- 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 documents:
- claims 1 to 7 of Auxiliary Request 2 filed on 23 March 2023
- description: paragraphs [0001] to [0292] of the patent specification
- drawings: sheets 1/6 to 6/6 of the patent specification.