Tio2-Free Pigment

Patent No. EP4172275 (titled "Tio2-Free Pigment") was filed by SUN Chemical on Sep 15, 2021. The application was issued on Feb 7, 2024.

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
ECKARTNov 6, 2024STRYCH

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

EP4172275

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