Patent No. EP2831296 (titled "High Strength Cold Rolled Steel Sheet And Method Of Producing Such Steel Sheet") was filed by Kobe Steel on Apr 2, 2013. The application was issued on Apr 15, 2020.

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.
| Company | Opposition Date | Representative |
|---|---|---|
| TATA STEEL IJMUIDEN | May 23, 2018 | GROUP SERVICES |
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
Mar 19, 2020
Mar 19, 2020
Mar 13, 2020
Mar 5, 2020
Mar 5, 2020
Mar 5, 2020
Mar 5, 2020
Feb 14, 2020
Feb 14, 2020
Feb 14, 2020
Feb 11, 2020
Oct 7, 2019
Oct 7, 2019
Oct 1, 2019
Sep 26, 2019
Sep 26, 2019
Sep 26, 2019
Sep 26, 2019
Sep 26, 2019
Sep 26, 2019
Sep 26, 2019
Sep 26, 2019
Sep 26, 2019
Sep 26, 2019
Sep 26, 2019
Sep 26, 2019
Sep 26, 2019
Sep 26, 2019
Sep 26, 2019
Sep 26, 2019
Sep 26, 2019
Sep 26, 2019
Sep 10, 2019
Jul 15, 2019
Jul 12, 2019
Jul 9, 2019
Jul 9, 2019
Jul 9, 2019
Jul 9, 2019
Jul 8, 2019
Jul 8, 2019
Jun 28, 2019
Feb 21, 2019
Feb 18, 2019
Feb 15, 2019
Feb 12, 2019
Feb 12, 2019
Feb 12, 2019
Feb 12, 2019
Feb 12, 2019
Feb 12, 2019
Nov 16, 2018
Nov 13, 2018
Nov 13, 2018
Nov 13, 2018
Nov 7, 2018
Oct 31, 2018
Oct 31, 2018
Oct 31, 2018
Aug 17, 2018
Aug 13, 2018
Aug 13, 2018
Aug 13, 2018
Jun 6, 2018
Jun 6, 2018
May 29, 2018
May 23, 2018
May 23, 2018
May 23, 2018
May 23, 2018
May 23, 2018
May 23, 2018
May 23, 2018
May 23, 2018
May 23, 2018
May 23, 2018
May 23, 2018
May 23, 2018
May 23, 2018
May 23, 2018
May 23, 2018
May 23, 2018
May 23, 2018
May 23, 2018
May 23, 2018
May 23, 2018
Aug 24, 2017
Jul 27, 2017
Jul 13, 2017
Jul 13, 2017
Jul 13, 2017
Jul 13, 2017
Mar 15, 2017
Mar 15, 2017
Mar 15, 2017
Mar 15, 2017
Mar 15, 2017
Oct 4, 2016
Oct 4, 2016
Oct 4, 2016
Sep 26, 2016
Sep 26, 2016
Sep 20, 2016
Feb 16, 2015
Feb 16, 2015
Feb 10, 2015
Jan 8, 2015
Dec 4, 2014
Dec 4, 2014
Dec 4, 2014
Nov 25, 2014
Nov 25, 2014
Nov 25, 2014
Nov 25, 2014
Nov 21, 2014
Nov 19, 2014
Nov 6, 2014
Nov 4, 2014
Nov 4, 2014
Nov 4, 2014
Nov 4, 2014
Oct 14, 2014
Oct 14, 2014
Aug 21, 2014
Aug 21, 2014
Aug 8, 2014
Oct 22, 2013
Oct 3, 2013
Oct 3, 2013
Aug 1, 2013
Aug 1, 2013
Aug 1, 2013
Apr 2, 2013
Apr 2, 2013
Apr 2, 2013
Apr 2, 2013