The Weekly Litigation News Digest is now live. Subscribe now

IP Verse

Tio2-Free Pigment - EP4172275

The patent EP4172275 was granted to SUN Chemical on Feb 7, 2024. The application was originally filed on Sep 15, 2021 under application number EP21791117A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

EP4172275

SUN CHEMICAL
Application Number
EP21791117A
Filing Date
Sep 15, 2021
Status
Granted And Under Opposition
Jan 5, 2024
Publication Date
Feb 7, 2024
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

Get instant alerts for new oppositions and patent status changes

ECKARTNov 6, 2024STRYCHADMISSIBLE

Patent Citations (11) New

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

Citation PhasePublication Number
INTERNATIONAL-SEARCH-REPORTWO2017127362
OPPOSITIONDE19516580
OPPOSITIONDE69815510T
OPPOSITIONJP2007001851
OPPOSITIONJP2007001970
OPPOSITIONJP2009013111
OPPOSITIONJP2009013281
OPPOSITIONUS2015166793
OPPOSITIONUS5749946
OPPOSITIONWO2015086146
OPPOSITIONWO9841475

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