European Patent Office

T 0311/24 (AGING ALUMINUM ALLOYS/Arconic Technologies) of 04.03.2026

European Case Law Identifier
ECLI:EP:BA:2026:T031124.20260304
Date of decision
4 March 2026
Case number
T 0311/24
Online on
7 May 2026
Petition for review of
-
Application number
10814577.2
Language of proceedings
English
Distribution
No distribution (D)
OJ versions
No OJ links found
Other decisions for this case
-
Abstracts for this decision
-
Application title
METHODS OF AGING ALUMINUM ALLOYS TO ACHIEVE IMPROVED BALLISTICS PERFORMANCE
Applicant name
Arconic Technologies LLC
Opponent name
C-Tec Constellium Technology Center S.A.S.
Constellium Valais SA (AG)
Constellium Rolled Products Ravenswood, LLC
Board
3.3.05
Headnote
-
Keywords
Sufficiency of disclosure - undue burden (yes)
Catchword
-
Cited cases
-
Citing cases
-

Order

For these reasons it is decided that:

1. The decision under appeal is set aside.

2. The patent is revoked.