Patent No. EP2501974 (titled "Threaded Connection") was filed by Nippon Steel & Sumitomo Metal on Nov 9, 2010. The application was issued on Feb 17, 2016.

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 |
|---|---|---|
| TENARIS CONNECTIONS | Nov 16, 2016 | BOULT WADE TENNANT |
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
Jan 31, 2023
Jan 20, 2023
Jan 13, 2023
Dec 9, 2022
Dec 9, 2022
Dec 9, 2022
Oct 25, 2022
Sep 22, 2022
Sep 22, 2022
Sep 22, 2022
Sep 8, 2022
Sep 5, 2022
Sep 5, 2022
Sep 5, 2022
Sep 2, 2022
Sep 2, 2022
Aug 22, 2022
Aug 18, 2022
Aug 18, 2022
Aug 18, 2022
Aug 18, 2022
Aug 17, 2022
Aug 17, 2022
Aug 17, 2022
Jul 28, 2022
Jul 28, 2022
Jul 28, 2022
Jul 25, 2022
Jul 25, 2022
Jul 25, 2022
Jul 22, 2022
Jul 22, 2022
Jul 15, 2022
Jul 15, 2022
Jul 15, 2022
Jul 13, 2022
Jul 13, 2022
Jul 13, 2022
Jul 13, 2022
Jul 13, 2022
Jul 13, 2022
Jul 13, 2022
Jun 20, 2022
Jun 20, 2022
May 4, 2022
May 4, 2022
May 4, 2022
May 4, 2022
Apr 29, 2022
Apr 29, 2022
Apr 21, 2022
Apr 21, 2022
Apr 21, 2022
Apr 21, 2022
Feb 9, 2022
Feb 4, 2022
Jan 31, 2022
Jan 31, 2022
Jan 31, 2022
Aug 20, 2021
Aug 20, 2021
Aug 20, 2021
Aug 16, 2021
Jul 26, 2021
Jul 26, 2021
Jul 26, 2021
Jul 26, 2021
Jul 21, 2021
Mar 3, 2021
Jun 24, 2020
Jan 22, 2020
Jan 10, 2020
Jan 10, 2020
Jan 10, 2020
Jan 10, 2020
Sep 16, 2019
Jun 7, 2019
May 28, 2019
May 27, 2019
May 27, 2019
May 27, 2019
May 23, 2019
May 23, 2019
May 23, 2019
May 23, 2019
May 23, 2019
May 23, 2019
May 23, 2019
May 23, 2019
May 23, 2019
May 23, 2019
May 23, 2019
May 23, 2019
May 23, 2019
May 23, 2019
May 23, 2019
May 23, 2019
May 23, 2019
May 23, 2019
Jan 22, 2019
Jan 15, 2019
Jan 15, 2019
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Oct 23, 2018
Oct 23, 2018
Oct 17, 2018
Oct 17, 2018
Oct 17, 2018
Oct 17, 2018
Oct 17, 2018
Oct 10, 2018
Oct 10, 2018
Oct 10, 2018
Oct 10, 2018
Sep 21, 2018
Aug 27, 2018
Aug 23, 2018
Aug 20, 2018
Aug 20, 2018
Aug 20, 2018
Aug 20, 2018
Aug 20, 2018
Aug 20, 2018
Aug 20, 2018
Aug 20, 2018
Aug 20, 2018
Aug 20, 2018
Aug 20, 2018
Aug 20, 2018
Aug 20, 2018
Aug 20, 2018
Aug 20, 2018
Jul 19, 2018
Jul 3, 2018
Jun 8, 2018
Jun 8, 2018
Jun 8, 2018
Apr 17, 2018
Apr 17, 2018
Apr 6, 2018
Apr 6, 2018
Apr 6, 2018
Apr 6, 2018
Apr 6, 2018
Apr 6, 2018
Apr 6, 2018
Apr 6, 2018
Apr 6, 2018
Apr 6, 2018
Apr 6, 2018
Apr 6, 2018
Nov 23, 2017
Nov 13, 2017
Nov 13, 2017
Nov 8, 2017
Nov 8, 2017
Nov 8, 2017
Nov 8, 2017
Nov 8, 2017
Nov 8, 2017
Nov 8, 2017
May 22, 2017
May 12, 2017
May 12, 2017
May 12, 2017
May 12, 2017
May 12, 2017
May 12, 2017
May 12, 2017
May 12, 2017
May 12, 2017
Jan 2, 2017
Jan 2, 2017
Nov 16, 2016
Nov 16, 2016
Nov 16, 2016
Nov 16, 2016
Nov 16, 2016
Nov 16, 2016
Nov 16, 2016
Nov 16, 2016
Nov 16, 2016
Nov 16, 2016
Nov 16, 2016
Nov 16, 2016
Nov 16, 2016
Nov 16, 2016
Nov 16, 2016
Nov 16, 2016
Nov 16, 2016
Nov 16, 2016
Nov 16, 2016
Nov 16, 2016
Nov 16, 2016
Nov 16, 2016
Nov 16, 2016
Nov 16, 2016
Nov 16, 2016
Nov 16, 2016
Feb 17, 2016
Jan 21, 2016
Dec 10, 2015
Dec 10, 2015
Dec 10, 2015
Dec 10, 2015
Sep 7, 2015
Sep 7, 2015
Sep 7, 2015
Sep 7, 2015
Nov 26, 2014
Nov 26, 2014
Nov 26, 2014
Oct 14, 2014
Oct 14, 2014
Oct 14, 2014
Mar 11, 2014
Mar 11, 2014
Mar 11, 2014
Dec 5, 2013
Nov 25, 2013
Nov 22, 2013
Nov 11, 2013
Nov 11, 2013
Nov 5, 2013
Dec 19, 2012
Dec 11, 2012
Aug 29, 2012
Aug 27, 2012
Aug 22, 2012
Jul 18, 2012
Jun 5, 2012
May 25, 2012
May 25, 2012
Mar 30, 2012
Nov 10, 2011
Nov 10, 2011
Sep 2, 2011
Sep 2, 2011
Sep 2, 2011
Jun 15, 2011
May 26, 2011
Nov 9, 2010
Nov 9, 2010
Nov 9, 2010
Nov 9, 2010
Nov 9, 2010