High-Filtration Efficiency Wall-Flow Filter

Patent No. EP3877634 (titled "High-Filtration Efficiency Wall-Flow Filter") was filed by Umicore on Nov 7, 2019. The application was issued on Jul 6, 2022.

Patent Summary

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Patent Family

Patent Oppositions (2)

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
JOHNSON MATTHEY PUBLICApr 3, 2023BOULT WADE TENNANT
JOHNSON MATTHEY PUBLICApr 3, 2023NUNN

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.

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EP3877634

UMICORE
Application Number
EP19801526A
Filing Date
Nov 7, 2019
Status
Granted And Under Opposition
Jun 3, 2022
Publication Date
Jul 6, 2022