T 0539/24 (Production of Nitric acid/Casale) of 17.11.2025

European Case Law Identifier: ECLI:EP:BA:2025:T053924.20251117
Date of decision: 17 November 2025
Case number: T 0539/24
Petition for review of: -
Application number: 18702499.7
IPC class: C01B 21/46 C01B 21/28 B01D 53/02 C01B 21/26 B01D 53/56
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: A PLANT FOR THE PRODUCTION OF NITRIC ACID, A RELATED PROCESS AND METHOD OF REVAMPING
Applicant name: Casale SA
Opponent name: YARA International ASA
Board: 3.3.05
Headnote: -
Relevant legal provisions: European Patent Convention Art 123(2)European Patent Convention Art 84Rules of procedure of the Boards of Appeal 2020 Art 013(2)
Keywords: Clarity - main request (no) - auxiliary requests 1, 2, 4, 5, 6 (no)
Amendments - allowable (no)
Amendment after summons - taken into account (no)
Catchword: -
Cited cases: G 0003/14 T 1800/21
Citing cases: -

Order

For these reasons it is decided that:

1. The decision under appeal is set aside.

2. The patent is revoked.