Patent No. EP3306766 (titled "Direct Current Power Transmission System, Central Server Of Same, And Method For Restoring Direct Current Power Transmission Pathway After Failure") was filed by Kabushiki Kaisha Toshiba on May 20, 2016. The application was issued on Apr 3, 2024.

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 |
|---|---|---|
| SIEMENS ENERGY | Mar 29, 2022 | - |
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 7, 2024
Mar 7, 2024
Feb 22, 2024
Feb 22, 2024
Feb 22, 2024
Feb 22, 2024
Feb 6, 2024
Jan 23, 2024
Jan 23, 2024
Jan 18, 2024
Jan 18, 2024
Jan 16, 2024
Jan 10, 2024
Dec 21, 2023
Dec 21, 2023
Dec 21, 2023
Nov 16, 2023
Nov 16, 2023
Nov 10, 2023
Nov 10, 2023
Nov 10, 2023
Sep 25, 2023
Sep 22, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Jun 15, 2023
Apr 21, 2023
Apr 14, 2023
Apr 14, 2023
Apr 14, 2023
Apr 14, 2023
Apr 14, 2023
Apr 14, 2023
Apr 14, 2023
Apr 14, 2023
Apr 14, 2023
Apr 14, 2023
Apr 14, 2023
Apr 14, 2023
Apr 14, 2023
Apr 14, 2023
Apr 14, 2023
Apr 14, 2023
Apr 14, 2023
Apr 14, 2023
Apr 14, 2023
Apr 14, 2023
Apr 14, 2023
Apr 14, 2023
Apr 14, 2023
Apr 14, 2023
Apr 14, 2023
Apr 14, 2023
Apr 11, 2023
Apr 11, 2023
Apr 11, 2023
Apr 11, 2023
Apr 11, 2023
Dec 14, 2022
Dec 14, 2022
Nov 29, 2022
Nov 21, 2022
Nov 17, 2022
Nov 17, 2022
Nov 17, 2022
Nov 17, 2022
Nov 17, 2022
Nov 17, 2022
Nov 17, 2022
Oct 12, 2022
Oct 7, 2022
Oct 7, 2022
Oct 7, 2022
Oct 7, 2022
Oct 7, 2022
Oct 7, 2022
Oct 7, 2022
Oct 7, 2022
Oct 7, 2022
Oct 7, 2022
Oct 7, 2022
Oct 7, 2022
Oct 7, 2022
Oct 7, 2022
Oct 7, 2022
Oct 7, 2022
Oct 7, 2022
Oct 7, 2022
Oct 7, 2022
Sep 29, 2022
Sep 26, 2022
Sep 26, 2022
Sep 26, 2022
Sep 26, 2022
Sep 26, 2022
Sep 26, 2022
Sep 26, 2022
Sep 26, 2022
Sep 26, 2022
Sep 26, 2022
Sep 26, 2022
Sep 26, 2022
Sep 26, 2022
Sep 26, 2022
Sep 26, 2022
Sep 26, 2022
Sep 26, 2022
Sep 26, 2022
Sep 26, 2022
Sep 26, 2022
Sep 26, 2022
Sep 26, 2022
Sep 26, 2022
Sep 26, 2022
Sep 26, 2022
May 31, 2022
May 31, 2022
May 27, 2022
May 23, 2022
May 23, 2022
May 23, 2022
May 23, 2022
May 23, 2022
Apr 4, 2022
Apr 4, 2022
Mar 29, 2022
Mar 29, 2022
Mar 29, 2022
Mar 29, 2022
Mar 29, 2022
Mar 29, 2022
Mar 29, 2022
Mar 29, 2022
Mar 29, 2022
Mar 29, 2022
Mar 29, 2022
Mar 29, 2022
Mar 29, 2022
Jul 20, 2021
Jun 10, 2021
May 31, 2021
May 31, 2021
May 31, 2021
May 31, 2021
Mar 16, 2021
Mar 16, 2021
Mar 16, 2021
Mar 16, 2021
Mar 16, 2021
Jan 15, 2021
Jun 13, 2019
Jun 13, 2019
Jun 13, 2019
Jun 13, 2019
Jun 13, 2019
Jun 13, 2019
Feb 1, 2019
Jan 16, 2019
Jan 16, 2019
Jan 16, 2019
Jan 16, 2019
Jan 8, 2019
May 17, 2018
Mar 14, 2018
Jan 16, 2018
Jan 5, 2018
Jan 5, 2018
Jan 5, 2018
Jan 5, 2018
Jan 5, 2018
Jan 5, 2018
Jan 5, 2018
Dec 21, 2017
Dec 21, 2017
Nov 3, 2017
Nov 3, 2017
Nov 3, 2017
Nov 3, 2017
Nov 3, 2017
Nov 3, 2017
Nov 3, 2017
Oct 13, 2017
Jan 2, 2017
Dec 8, 2016
Dec 8, 2016
Dec 8, 2016