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Modified Diene-Containing (Co)Polymer, Method For Preparing Thereof And Use As A Flame Retardant

Patent No. EP3902843 (titled "Modified Diene-Containing (Co)Polymer, Method For Preparing Thereof And Use As A Flame Retardant") was filed by Public Joint Stock Sibur Holding on Dec 27, 2018. The application was issued on Jan 29, 2025.

Patent Summary

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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.

CompanyOpposition DateRepresentative
LANXESS DEUTSCHLANDOct 28, 2025-

Dossier Documents

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EP3902843

PUBLIC JOINT STOCK SIBUR HOLDING
Application Number
EP18905911A
Filing Date
Dec 27, 2018
Status
Granted And Under Opposition
Dec 26, 2024
Publication Date
Jan 29, 2025