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IP Verse

Antioxidant For Low-Density Polyurethane Foam - EP3720893

The patent EP3720893 was granted to Shell Internationale Research Maatschappij on Oct 23, 2024. The application was filed on Dec 6, 2018 under application number EP18819035A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

EP3720893

SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ
Application Number
EP18819035A
Filing Date
Dec 6, 2018
Status
Patent Maintained As Amended
Sep 19, 2024
Publication Date
Oct 23, 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.

CompanyOpposition DateRepresentativeOpposition Status
BASFMar 23, 2022BASF ASSOCIATION -

Patent Citations (38) New

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

Citation PhasePublication Number
DESCRIPTIONCN103275296
DESCRIPTIONCN106117537
DESCRIPTIONEP0076491
DESCRIPTIONEP0343907
DESCRIPTIONEP0495551
DESCRIPTIONJP2013227490
DESCRIPTIONKR20120060672
DESCRIPTIONUS2002123536
DESCRIPTIONUS2004143028
DESCRIPTIONUS2006293402
DESCRIPTIONUS2011230581
DESCRIPTIONUS2012238657
DESCRIPTIONUS2012264839
DESCRIPTIONUS2013030068
DESCRIPTIONUS2013203880
DESCRIPTIONUS2014155506
DESCRIPTIONUS2017267914
DESCRIPTIONUS4178420
DESCRIPTIONUS5182310
DESCRIPTIONUS5869565
DESCRIPTIONWO2006111492
DESCRIPTIONWO2011125952
DESCRIPTIONWO2017037204
DESCRIPTIONWO2017162520
INTERNATIONAL-SEARCH-REPORTEP1437372
INTERNATIONAL-SEARCH-REPORTUS2002123536
INTERNATIONAL-SEARCH-REPORTUS3751375
INTERNATIONAL-SEARCH-REPORTWO2015162125
OPPOSITIONCN104774306
OPPOSITIONEP1437372
OPPOSITIONEP1630185
OPPOSITIONEP1647565
OPPOSITIONKR20120060672
OPPOSITIONUS2013203880
OPPOSITIONWO2015162125
OPPOSITIONWO2018050628
OPPOSITIONWO9510559
OPPOSITIONWO9916821

Dossier Documents

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