The weekly litigation news digest is live. Subscribe now

IP Verse

Polyamide Composition Comprising Carbon Black

Patent No. EP4028462 (titled "Polyamide Composition Comprising Carbon Black") was filed by Basf on Sep 8, 2020. The application was issued on Aug 9, 2023.

Patent Summary

Patent Family

Patent Family

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
EMS CHEMIEMay 8, 2024PFENNING

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.

  • Date

    Description

  • Get instant alerts for new documents

EP4028462

BASF
Application Number
EP20767549A
Filing Date
Sep 8, 2020
Status
Opposition Rejected
Sep 5, 2025
Publication Date
Aug 9, 2023
External Links
Slate, EP4028462B1, Google Patents