Patent No. EP3086450 (titled "Rotor For A Synchronous Reluctance Machine") was filed by ABB Research on Mar 12, 2009. The application was issued on Jun 7, 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.
| Company | Opposition Date | Representative |
|---|---|---|
| LINDE MATERIAL HANDLING | Mar 5, 2024 | PATENTSHIP PATENTANWALTGESELLSCHAFT |
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
Dec 22, 2025
Dec 22, 2025
Dec 17, 2025
Dec 17, 2025
Dec 17, 2025
Dec 15, 2025
Dec 15, 2025
Nov 3, 2025
Nov 3, 2025
Nov 3, 2025
Nov 3, 2025
Nov 3, 2025
Nov 3, 2025
Nov 3, 2025
Nov 3, 2025
Nov 3, 2025
Nov 3, 2025
Nov 3, 2025
Nov 3, 2025
Nov 3, 2025
Oct 1, 2025
Oct 1, 2025
Sep 30, 2025
Sep 30, 2025
Sep 30, 2025
Sep 30, 2025
Sep 30, 2025
Sep 30, 2025
Sep 30, 2025
Sep 30, 2025
Sep 30, 2025
Sep 30, 2025
Sep 30, 2025
Aug 21, 2025
Aug 20, 2025
Aug 20, 2025
Aug 20, 2025
Aug 6, 2025
Aug 1, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 30, 2025
Jul 29, 2025
Jul 29, 2025
Jul 29, 2025
Jul 29, 2025
Jul 29, 2025
Mar 12, 2025
Mar 12, 2025
Mar 12, 2025
Mar 12, 2025
Mar 12, 2025
Feb 21, 2025
Feb 18, 2025
Feb 18, 2025
Feb 18, 2025
Nov 20, 2024
Nov 18, 2024
Nov 14, 2024
Nov 14, 2024
Nov 14, 2024
Nov 14, 2024
Nov 14, 2024
Nov 13, 2024
Nov 13, 2024
Nov 13, 2024
Nov 13, 2024
Jul 15, 2024
Jul 15, 2024
Jul 9, 2024
Jul 5, 2024
Jul 5, 2024
Apr 10, 2024
Mar 5, 2024
Mar 5, 2024
Mar 5, 2024
Mar 5, 2024
Mar 5, 2024
Mar 5, 2024
Mar 5, 2024
Mar 5, 2024
Mar 5, 2024
Mar 5, 2024
Mar 5, 2024
Mar 5, 2024
Mar 5, 2024
Mar 5, 2024
Mar 5, 2024
Mar 5, 2024
Mar 5, 2024
Jun 20, 2023
May 11, 2023
Mar 22, 2023
Mar 16, 2023
Mar 16, 2023
Mar 16, 2023
Mar 16, 2023
Mar 16, 2023
Mar 16, 2023
Jan 2, 2023
Jan 2, 2023
Jan 2, 2023
Jan 2, 2023
Jan 2, 2023
Jan 2, 2023
Oct 21, 2022
Oct 21, 2022
Oct 21, 2022
Oct 21, 2022
Oct 21, 2022
Oct 21, 2022
Oct 21, 2022
Oct 21, 2022
Oct 21, 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
Apr 22, 2022
Apr 22, 2022
Mar 14, 2022
Mar 14, 2022
Jun 4, 2021
Jun 4, 2021
Jun 4, 2021
Jun 4, 2021
Jun 4, 2021
Apr 30, 2021
Apr 30, 2021
Feb 24, 2020
Feb 24, 2020
Jan 29, 2020
Jan 29, 2020
Jan 29, 2020
Jan 29, 2020
Jan 29, 2020
Nov 5, 2019
Nov 5, 2019
Oct 22, 2019
Oct 22, 2019
Oct 16, 2019
Oct 16, 2019
Oct 16, 2019
Oct 16, 2019
Oct 14, 2019
Oct 8, 2019
Oct 2, 2019
Oct 2, 2019
Oct 2, 2019
Oct 2, 2019
Oct 2, 2019
Sep 13, 2019
Sep 10, 2019
Sep 6, 2019
Jul 26, 2019
Jul 1, 2019
Apr 13, 2018
Apr 20, 2017
Apr 20, 2017
Apr 20, 2017
Apr 20, 2017
Apr 20, 2017
Apr 20, 2017
Apr 20, 2017
Oct 31, 2016
Oct 10, 2016
Sep 28, 2016
Sep 14, 2016
Sep 2, 2016
Sep 2, 2016
Sep 2, 2016
Sep 2, 2016
Aug 24, 2016
Jun 3, 2016
Apr 13, 2016
Apr 7, 2016
Apr 7, 2016
Apr 7, 2016
Apr 1, 2016
Mar 9, 2016
Mar 9, 2016
Mar 9, 2016
Mar 9, 2016
Mar 9, 2016
Mar 9, 2016
Mar 9, 2016