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IP Verse

Method For Producing Lyocell Staple Fibers - EP4007826

The patent EP4007826 was granted to Lenzing on Jun 7, 2023. The application was filed on Jul 29, 2020 under application number EP20744073A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

EP4007826

LENZING
Application Number
EP20744073A
Filing Date
Jul 29, 2020
Status
Granted And Under Opposition
May 5, 2023
Publication Date
Jun 7, 2023
External Links
Slate, Register, Google Patents

Patent Summary

Patent Family

Patent Family

Patent Oppositions

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 DateRepresentativeOpposition Status
METSA SPRINGMar 7, 2024LAINEADMISSIBLE

Patent Citations (38) New

Patent citations refer to prior patents cited during different phases such as opposition or international search.

Citation PhasePublication Number
DESCRIPTIONCN106757906
DESCRIPTIONCN108360182
DESCRIPTIONCN203402582U
DESCRIPTIONCN203403200U
DESCRIPTIONCN203904520U
DESCRIPTIONCN203960407U
DESCRIPTIONCN203999953U
DESCRIPTIONCN204000264U
DESCRIPTIONCN204265902U
DESCRIPTIONEP0538977
DESCRIPTIONEP0553070
DESCRIPTIONGB2373784
DESCRIPTIONUS4246221
DESCRIPTIONUS5562739
DESCRIPTIONWO2004007818
DESCRIPTIONWO2010031091
DESCRIPTIONWO2015101543
DESCRIPTIONWO2019170670
DESCRIPTIONWO9319230
DESCRIPTIONWO9409191
DESCRIPTIONWO9427903
DESCRIPTIONWO9524520
DESCRIPTIONWO9528516
DESCRIPTIONWO9714829
DESCRIPTIONWO9749856
DESCRIPTIONWO9828516
DESCRIPTIONWO9919555
INTERNATIONAL-SEARCH-REPORTDE10043297
INTERNATIONAL-SEARCH-REPORTGB2373784
INTERNATIONAL-SEARCH-REPORTUS5562739
INTERNATIONAL-SEARCH-REPORTUS7951237
INTERNATIONAL-SEARCH-REPORTWO2004007818
OPPOSITIONEP1315856
OPPOSITIONGB2373784
OPPOSITIONUS5310424
OPPOSITIONUS5562739
OPPOSITIONWO9524520
OPPOSITIONWO9714829

Dossier Documents

The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.

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    Description

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