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Polymer Polyols Having Improved Quality

PatentPatent Analysis

EP2890726

BAYER MATERIALSCIENCE
Application Number
EP13832458A
Filing Date
Aug 22, 2013
Status
Revoked
Jan 26, 2024
Grant Date
Mar 24, 2021
External Links
Slate, Register, Google Patents
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Bibliography

The patent EP2890726B1 was granted to Bayer Materialscience on Mar 24, 2021 following the initial filing on Aug 22, 2013 under the application number EP13832458A . The current legal status of the patent is Revoked.

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Patent Oppositions filed by Competitors

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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ARKEMA FRANCEJan 3, 2022ADMISSIBLE
REPSOLDec 23, 2021ADMISSIBLE

Dossier Documents of the Patent

The dossier documents provide a comprehensive record of the patent’s prosecution history, including filings, correspondence, and decisions made by patent offices. These documents are crucial for understanding the patent’s legal journey and any challenges it may have faced during examination. It also includes the oppositions documents filed against the patent.

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