Method For Preparing And Treating A Steel Substrate

Patent No. EP2971234 (titled "Method For Preparing And Treating A Steel Substrate") was filed by PPG Industries Ohio on Mar 7, 2014. The application was issued on Dec 2, 2020.

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
CHEMETALLSep 1, 2021STEFFAN & KIEHNE
CHEMETALLSep 1, 2021STEFFAN & KIEHNE PATENTANWALTE PARTG MBB

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

EP2971234

PPG INDUSTRIES OHIO
Application Number
EP14714065A
Filing Date
Mar 7, 2014
Status
Granted And Under Opposition
Oct 30, 2020
Publication Date
Dec 2, 2020