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A Process And A Spinning Line Unit For Wet Spinning Of Cellulose Fibers From An Alkaline Spin Bath

Patent No. EP3927873 (titled "A Process And A Spinning Line Unit For Wet Spinning Of Cellulose Fibers From An Alkaline Spin Bath") was filed by Treetotextile on Feb 20, 2020. The application was issued on Jul 10, 2024.

Patent Summary

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Patent Oppositions (3)

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
UND RECHTSANWALT WEIApr 9, 2025PATENTANWALTE UND RECHTSANWALT WEISS
UND RECHTSANWALT WEIApr 9, 2025UND RECHTSANWALT WEI
UPM KYMMENEApr 8, 2025HOFFMANN EITLE

Dossier Documents

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EP3927873

TREETOTEXTILE
Application Number
EP20758735A
Filing Date
Feb 20, 2020
Status
Granted And Under Opposition
Jun 7, 2024
Publication Date
Jul 10, 2024
External Links
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