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Polycarbonate Diol - EP3936551B1

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EP3936551

ASAHI KASEI KABUSHIKI KAISHA
Application Number
EP20767117A
Filing Date
Feb 20, 2020
Status
Granted And Under Opposition
May 13, 2022
Grant Date
Jun 15, 2022
External Links
Slate, Register, Google Patents
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The patent EP3936551B1 was granted to Asahi Kasei Kabushiki Kaisha on Jun 15, 2022 following the initial filing on Feb 20, 2020 under the application number EP20767117A . The current legal status of the patent is Granted And Under Opposition.

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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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HAMMERMar 15, 2023ADMISSIBLE

Dossier Documents

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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