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Barrier Paper Or Board

Patent No. EP4168625 (titled "Barrier Paper Or Board") was filed by Sappi Netherlands Services on Jun 23, 2021. The application was issued on Dec 25, 2024.

Patent Summary

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Patent Family

Patent Oppositions (2)

Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.

CompanyOpposition DateRepresentative
BILLERUD AKTIEBOLAG PUBLSep 25, 2025KRANSELL & WENNBORG KB
KEMIRA OYJSep 25, 2025ESPATENT

Dossier Documents

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EP4168625

SAPPI NETHERLANDS SERVICES
Application Number
EP21734160A
Filing Date
Jun 23, 2021
Status
Granted And Under Opposition
Nov 22, 2024
Publication Date
Dec 25, 2024
External Links
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