The weekly litigation news digest is live. Subscribe now

IP Verse

Polyamide Composition Comprising Carbon Black - EP4028462

The patent EP4028462 was granted to Basf on Aug 9, 2023. The application was filed on Sep 8, 2020 under application number EP20767549A. The patent is currently recorded with a legal status of "Opposition Rejected".

EP4028462

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

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 DateRepresentativeOpposition Status
EMS CHEMIEMay 8, 2024PFENNINGADMISSIBLE

Patent Citations (14) New

Patent citations refer to prior patents cited during different phases such as opposition or international search.

Citation PhasePublication Number
INTERNATIONAL-SEARCH-REPORTCN101161724
INTERNATIONAL-SEARCH-REPORTUS2010032629
INTERNATIONAL-SEARCH-REPORTWO2013128251
OPPOSITIONEP1004618
OPPOSITIONEP2049597
OPPOSITIONEP2121843
OPPOSITIONEP2227507
OPPOSITIONEP2649130
OPPOSITIONUS4702859
OPPOSITIONUS5004531
OPPOSITIONUS5004561
OPPOSITIONWO2004078847
OPPOSITIONWO2007057584
OPPOSITIONWO2020120523

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