Patent No. EP2442625 (titled "Electrode For A Contact Start Plasma Arc Torch And Contact Start Plasma Arc Torch Employing Such Electrodes") was filed by Hypertherm on Feb 20, 2007. The application was issued on May 24, 2023.

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.
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
Apr 28, 2023
Apr 28, 2023
Apr 21, 2023
Apr 17, 2023
Apr 17, 2023
Apr 17, 2023
Apr 17, 2023
Feb 28, 2023
Feb 28, 2023
Feb 28, 2023
Feb 24, 2023
Feb 24, 2023
Feb 23, 2023
Feb 9, 2023
Feb 9, 2023
Feb 9, 2023
Feb 9, 2023
Jan 2, 2023
Jan 2, 2023
Dec 19, 2022
Dec 19, 2022
Dec 19, 2022
Oct 18, 2022
Oct 18, 2022
Oct 18, 2022
Oct 13, 2022
Oct 13, 2022
Oct 13, 2022
Oct 10, 2022
Oct 10, 2022
Oct 10, 2022
Oct 10, 2022
Oct 10, 2022
Oct 10, 2022
Oct 10, 2022
Oct 10, 2022
Oct 10, 2022
Oct 10, 2022
Oct 10, 2022
Oct 10, 2022
Oct 10, 2022
Oct 10, 2022
Oct 10, 2022
Oct 10, 2022
Apr 21, 2022
Apr 20, 2022
Apr 19, 2022
Apr 14, 2022
Apr 14, 2022
Apr 14, 2022
Apr 13, 2022
Apr 13, 2022
Apr 13, 2022
Mar 7, 2022
Feb 25, 2022
Feb 25, 2022
Feb 25, 2022
Feb 25, 2022
Feb 18, 2022
Feb 18, 2022
Feb 18, 2022
Feb 18, 2022
Feb 18, 2022
Feb 18, 2022
Feb 18, 2022
Feb 18, 2022
Feb 18, 2022
Feb 18, 2022
Feb 18, 2022
Feb 18, 2022
Feb 18, 2022
Feb 18, 2022
Feb 18, 2022
Feb 18, 2022
Feb 18, 2022
Feb 18, 2022
Feb 18, 2022
Feb 18, 2022
Feb 18, 2022
Feb 18, 2022
Feb 18, 2022
Feb 18, 2022
Feb 18, 2022
Feb 18, 2022
Feb 18, 2022
Feb 18, 2022
Feb 18, 2022
Feb 18, 2022
Feb 18, 2022
Feb 18, 2022
Feb 1, 2022
Jan 25, 2022
Jan 25, 2022
Jan 25, 2022
Dec 13, 2021
Dec 13, 2021
Nov 17, 2021
Nov 17, 2021
Nov 17, 2021
Nov 16, 2021
Nov 16, 2021
Nov 16, 2021
Nov 10, 2021
Nov 10, 2021
Nov 10, 2021
Nov 10, 2021
Nov 10, 2021
Nov 10, 2021
Jun 15, 2021
Jun 7, 2021
Jun 7, 2021
Jun 7, 2021
Jun 7, 2021
Jun 7, 2021
Jun 7, 2021
Jun 7, 2021
Jun 7, 2021
Jun 7, 2021
Jun 7, 2021
Jun 7, 2021
Jun 7, 2021
Jun 7, 2021
Jun 7, 2021
Jun 7, 2021
Jun 7, 2021
Jun 7, 2021
Jun 7, 2021
Jun 7, 2021
Jun 7, 2021
Jun 7, 2021
Jun 7, 2021
Jun 7, 2021
Jun 7, 2021
Mar 16, 2021
Mar 16, 2021
Mar 16, 2021
Jan 26, 2021
Jan 26, 2021
Jan 20, 2021
Jan 20, 2021
Jan 20, 2021
Dec 29, 2020
Dec 29, 2020
Dec 29, 2020
Dec 29, 2020
Dec 29, 2020
Dec 29, 2020
Dec 29, 2020
Dec 29, 2020
Dec 29, 2020
Dec 29, 2020
Dec 29, 2020
Dec 29, 2020
Dec 29, 2020
Dec 29, 2020
Dec 29, 2020
Dec 29, 2020
Dec 29, 2020
Dec 29, 2020
Apr 15, 2020
Mar 5, 2020
Feb 17, 2020
Feb 17, 2020
Feb 17, 2020
Feb 17, 2020
Feb 17, 2020
Dec 16, 2019
Dec 16, 2019
Dec 16, 2019
Dec 16, 2019
Dec 16, 2019
Sep 9, 2019
Sep 9, 2019
Sep 9, 2019
Sep 9, 2019
Sep 9, 2019
Jul 9, 2019
Jul 1, 2019
Jul 1, 2019
Feb 27, 2019
Feb 27, 2019
Feb 20, 2019
Feb 20, 2018
Feb 14, 2018
Feb 9, 2017
Feb 9, 2017
Feb 9, 2017
Feb 9, 2017
Aug 16, 2016
Jul 12, 2016
Jul 12, 2016
Jul 12, 2016
Jul 12, 2016
Jun 29, 2016
Mar 21, 2012
Feb 16, 2012
Feb 16, 2012
Feb 16, 2012
Feb 16, 2012
Feb 16, 2012
Nov 14, 2011
Nov 14, 2011
Nov 14, 2011
Nov 14, 2011
Nov 14, 2011
Nov 14, 2011
Nov 14, 2011
Nov 14, 2011
Sep 18, 2007