European Patent Office

T 1044/23 of 24.09.2025

European Case Law Identifier
ECLI:EP:BA:2025:T104423.20250924
Date of decision
24 September 2025
Case number
T 1044/23
Petition for review of
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Application number
15728901.8
IPC class
C08L 23/06
Language of proceedings
English
Distribution
Distributed to board chairmen (C)
OJ versions
No OJ links found
Other decisions for this case
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Abstracts for this decision
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Application title
POLYETHYLENE COMPOSITION FOR INJECTION MOULDING
Applicant name
Basell Polyolefine GmbH
Opponent name
The Dow Chemical Company
Board
3.3.03
Headnote
-
Relevant legal provisions
European Patent Convention Art 54(2)European Patent Convention Art 56RPBA_2020_Art_012(6)_(2020)_Sent_2
Keywords
Late-filed evidence - should have been submitted in first-instance proceedings (yes)
Novelty - public prior use
Novelty - state of the art
Novelty - availability to the public
Inventive step - closest prior art
Inventive step - non-obvious modification
Catchword
Decision G 0001/23 does not exclude that a non reproducible product be selected as the closest prior art. Instead the specific circumstances of the case should be analysed.
The extent to which a non-reproducible product must be modified to obtain the claimed subject-matter, and the level of knowledge about that product and its manufacture required to achieve it, are not yet relevant for determining whether the product can be regarded as the closest prior art. These aspects instead relate to later stages of the problem-solution approach, namely identifying the distinguishing features between the product and the claimed subject-matter and/or assessing whether the skilled person, starting from that product, would have been able to obtain the claimed one (Reasons 5.1.3 to 5.1.11).
Citing cases
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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 on the basis of the claims of auxiliary request II filed with the rejoinder to the statement of grounds of appeal and a description to be adapted if necessary.