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Biomass-Resource-Derived Polyester And Production Process Thereof - EP3925997

The patent EP3925997 was granted to Mitsubishi Chemical on Jul 17, 2024. The application was originally filed on Apr 21, 2006 under application number EP21178711A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

EP3925997

MITSUBISHI CHEMICAL
Application Number
EP21178711A
Filing Date
Apr 21, 2006
Status
Granted And Under Opposition
Jun 14, 2024
Publication Date
Jul 17, 2024
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.

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NOVAMONTApr 17, 2025MAIWALDWITHDRAWN

Patent Citations (36) New

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

Citation PhasePublication Number
DESCRIPTIONJP20050375353
DESCRIPTIONJP20050375354
DESCRIPTIONJP20050375355
DESCRIPTIONJP2003235593
DESCRIPTIONJP2004196768
DESCRIPTIONJP2005027533
DESCRIPTIONJP2005125318
DESCRIPTIONJP2005125319
DESCRIPTIONJP2005125320
DESCRIPTIONJP2005125321
DESCRIPTIONJP2005127757
DESCRIPTIONJP2005127761
DESCRIPTIONJP2005128886
DESCRIPTIONJP2005139287
DESCRIPTIONJPH01293183
DESCRIPTIONJPH02283289
DESCRIPTIONJPH0330685
DESCRIPTIONJPH0795891
DESCRIPTIONJPH11113588
DESCRIPTIONJPH1120638
DESCRIPTIONJPS4733279B
DESCRIPTIONUS2941956
DESCRIPTIONUS5034105
DESCRIPTIONUS5143833
DESCRIPTIONUS5504004
DESCRIPTIONUS5770435
DESCRIPTIONUS6159738
DESCRIPTIONUS6284904
DESCRIPTIONWO0050033
DESCRIPTIONWO0151490
OPPOSITIONEP1882712
OPPOSITIONEP2204396
OPPOSITIONEP2365017
OPPOSITIONJP2005139287
SEARCHJP2005139287
SEARCHWO2005026232

Dossier Documents

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