IP Verse

Cabin Air Filter With Polarisation

Patent No. EP4230299 (titled "Cabin Air Filter With Polarisation") was filed by Hengst on Feb 18, 2022. The application was issued on Dec 11, 2024.

Patent Summary

Patent Family

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
KLLISCHSep 11, 2025MLLER SCHUPFNER & PARTNER PATENT UND MUC
KOLLISCHSep 11, 2025MULLER SCHUPFNER & PARTNER PATENT UND RECHTSANWALTSPARTNERSCHAFT MBB MUC

Dossier Documents

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EP4230299

HENGST
Application Number
EP22157505A
Filing Date
Feb 18, 2022
Status
Granted And Under Opposition
Nov 8, 2024
Publication Date
Dec 11, 2024
External Links
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