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IP Verse

Use Of Coating Compositions For Wind Turbine Blades - EP3990553

The patent EP3990553 was granted to Hempel on Jun 7, 2023. The application was filed on Jun 26, 2020 under application number EP20734547A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

EP3990553

HEMPEL
Application Number
EP20734547A
Filing Date
Jun 26, 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
COVESTRO DEUTSCHLANDMar 6, 2024LEVPATADMISSIBLE

Patent Citations (19) New

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

Citation PhasePublication Number
DESCRIPTIONEP3495403
DESCRIPTIONUS2018362801
DESCRIPTIONWO2014151307
DESCRIPTIONWO2015049260
DESCRIPTIONWO2015120941
DESCRIPTIONWO2015136018
DESCRIPTIONWO2016049104
INTERNATIONAL-SEARCH-REPORTEP3495403
INTERNATIONAL-SEARCH-REPORTGB2560972
INTERNATIONAL-SEARCH-REPORTUS2018362801
INTERNATIONAL-SEARCH-REPORTWO2014151307
OPPOSITIONEP3677609
OPPOSITIONUS9541060
OPPOSITIONWO2015120941
OPPOSITIONWO2015136018
OPPOSITIONWO2016049104
OPPOSITIONWO2016210237
OPPOSITIONWO2018177466
OPPOSITIONWO2020094689

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.

  • Date

    Description

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