Patent No. EP3374699 (titled "Method For Controlling A Centrifugal Pump, And Associated Pump System") was filed by Wilo on Oct 26, 2016. The application was issued on Sep 23, 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 |
|---|---|---|
| GRUNDFOS HOLDING | Jun 22, 2021 | PATENTANWALTE HEMMER LINDFELD FRESE PARTNERSCHAFT MBB |
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
Feb 5, 2026
Feb 5, 2026
Jan 26, 2026
Jan 26, 2026
Jan 26, 2026
Jan 26, 2026
Jan 26, 2026
Oct 27, 2025
Oct 27, 2025
Oct 27, 2025
Oct 8, 2025
Oct 8, 2025
Oct 2, 2025
Oct 2, 2025
Oct 2, 2025
Jul 10, 2025
Jul 10, 2025
Jul 10, 2025
Jun 18, 2025
Jun 18, 2025
Jun 18, 2025
Jun 18, 2025
May 23, 2025
May 23, 2025
Apr 11, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Mar 18, 2025
Mar 13, 2025
Mar 13, 2025
Mar 13, 2025
Mar 10, 2025
Mar 10, 2025
Feb 27, 2025
Feb 27, 2025
Feb 14, 2025
Feb 10, 2025
Feb 10, 2025
Feb 10, 2025
Feb 6, 2025
Feb 6, 2025
Feb 4, 2025
Feb 3, 2025
Jan 29, 2025
Jan 29, 2025
Jan 29, 2025
Jan 29, 2025
Jan 23, 2025
Jan 23, 2025
Jan 20, 2025
May 3, 2024
Apr 29, 2024
Apr 29, 2024
Apr 29, 2024
Mar 12, 2024
Mar 11, 2024
Mar 6, 2024
Mar 6, 2024
Mar 6, 2024
Mar 6, 2024
Mar 6, 2024
Mar 6, 2024
Mar 6, 2024
Mar 6, 2024
Mar 6, 2024
Mar 6, 2024
Mar 6, 2024
Mar 6, 2024
Mar 6, 2024
Mar 6, 2024
Mar 6, 2024
Mar 6, 2024
Mar 6, 2024
Mar 6, 2024
Mar 6, 2024
Mar 6, 2024
Mar 6, 2024
Mar 6, 2024
Mar 6, 2024
Mar 6, 2024
Mar 6, 2024
Mar 6, 2024
Mar 6, 2024
Mar 4, 2024
Mar 4, 2024
Mar 4, 2024
Mar 3, 2024
Nov 6, 2023
Nov 3, 2023
Oct 30, 2023
Oct 30, 2023
Oct 30, 2023
Oct 27, 2023
Oct 27, 2023
Oct 27, 2023
Oct 27, 2023
Oct 27, 2023
Oct 27, 2023
Oct 27, 2023
Oct 27, 2023
Oct 27, 2023
Sep 12, 2023
Sep 11, 2023
Sep 7, 2023
Sep 7, 2023
Sep 7, 2023
Sep 1, 2023
Sep 1, 2023
Sep 1, 2023
Jul 5, 2023
Jun 27, 2023
Jun 27, 2023
Jun 27, 2023
Jun 27, 2023
Jun 27, 2023
Jun 27, 2023
Jun 27, 2023
Jun 27, 2023
Jun 27, 2023
Jun 27, 2023
Jun 27, 2023
Jun 27, 2023
Jun 27, 2023
Jun 27, 2023
Nov 28, 2022
Oct 7, 2022
Oct 5, 2022
Sep 28, 2022
Sep 28, 2022
Sep 28, 2022
Sep 28, 2022
Sep 28, 2022
Sep 28, 2022
Sep 28, 2022
Sep 28, 2022
Sep 28, 2022
Sep 28, 2022
Sep 28, 2022
Sep 28, 2022
Sep 28, 2022
Sep 28, 2022
Sep 28, 2022
Sep 28, 2022
Sep 28, 2022
Sep 28, 2022
Sep 28, 2022
Sep 28, 2022
Sep 28, 2022
Sep 28, 2022
Sep 28, 2022
Sep 28, 2022
Sep 28, 2022
Sep 28, 2022
Sep 28, 2022
Sep 28, 2022
Sep 28, 2022
Sep 28, 2022
Sep 28, 2022
Sep 27, 2022
Sep 27, 2022
Sep 27, 2022
Apr 25, 2022
Apr 25, 2022
Mar 21, 2022
Feb 23, 2022
Feb 18, 2022
Feb 18, 2022
Feb 18, 2022
Feb 18, 2022
Feb 18, 2022
Feb 18, 2022
Nov 19, 2021
Nov 15, 2021
Nov 15, 2021
Nov 15, 2021
Nov 15, 2021
Nov 15, 2021
Nov 15, 2021
Jul 5, 2021
Jul 5, 2021
Jun 28, 2021
Jun 22, 2021
Jun 22, 2021
Jun 22, 2021
Jun 22, 2021
Jun 22, 2021
Jun 22, 2021
Jun 22, 2021
Oct 5, 2020
Aug 27, 2020
Aug 12, 2020
Aug 12, 2020
Aug 12, 2020
Aug 12, 2020
Aug 12, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
Jan 31, 2020
Jan 31, 2020
Jan 31, 2020
Oct 22, 2019
Oct 22, 2019
Sep 30, 2019
Feb 18, 2019
Feb 8, 2019
Dec 16, 2018
Sep 18, 2018
Sep 10, 2018
Aug 22, 2018
Aug 2, 2018
Jul 26, 2018
Jul 6, 2018
Jul 6, 2018
Jun 22, 2018
Jun 20, 2018
Jun 7, 2018
Jun 5, 2018
May 28, 2018
Mar 23, 2018
Jun 7, 2017
May 18, 2017
May 18, 2017
May 18, 2017
Feb 27, 2017
Feb 27, 2017
Feb 27, 2017
Jan 30, 2017
Jan 30, 2017
Jan 17, 2017
Jan 17, 2017
Dec 22, 2016
Dec 22, 2016
Dec 15, 2016
Dec 15, 2016
Dec 15, 2016
Dec 15, 2016
Dec 15, 2016
Dec 15, 2016
Dec 6, 2016
Nov 16, 2016
Oct 26, 2016
Oct 26, 2016