Patent No. EP3532729 (titled "Horizontally Split Screw-Spindle Pump") was filed by Klaus Union on Oct 27, 2017. The application was issued on Sep 25, 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 |
|---|---|---|
| LEISTRITZ PUMPEN | Sep 29, 2021 | LINDNER BLAUMEIER PATENT UND RECHTSANWALTE |
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
Aug 29, 2024
Aug 29, 2024
Aug 20, 2024
Aug 20, 2024
Aug 20, 2024
Aug 20, 2024
Jun 24, 2024
Jun 24, 2024
Jun 24, 2024
Jun 17, 2024
Mar 15, 2024
Mar 15, 2024
Mar 15, 2024
Mar 15, 2024
Mar 15, 2024
Mar 15, 2024
Mar 15, 2024
Mar 15, 2024
Mar 15, 2024
Mar 15, 2024
Mar 15, 2024
Mar 15, 2024
Mar 15, 2024
Mar 15, 2024
Mar 15, 2024
Mar 15, 2024
Jan 24, 2024
Jan 16, 2024
Jan 12, 2024
Jan 12, 2024
Jan 12, 2024
Nov 29, 2023
Nov 29, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Sep 15, 2023
Sep 8, 2023
Mar 15, 2023
Mar 7, 2023
Mar 7, 2023
Mar 7, 2023
Mar 2, 2023
Mar 1, 2023
Feb 24, 2023
Feb 24, 2023
Feb 24, 2023
Feb 24, 2023
Feb 24, 2023
Feb 24, 2023
Feb 24, 2023
Feb 24, 2023
Feb 23, 2023
Feb 23, 2023
Feb 23, 2023
Feb 23, 2023
Feb 23, 2023
Feb 23, 2023
Feb 23, 2023
Feb 23, 2023
Feb 23, 2023
Feb 23, 2023
Feb 23, 2023
Feb 23, 2023
Feb 23, 2023
Feb 23, 2023
Feb 23, 2023
Feb 23, 2023
Feb 23, 2023
Feb 23, 2023
Feb 23, 2023
Feb 23, 2023
Feb 23, 2023
Feb 23, 2023
Feb 23, 2023
Feb 23, 2023
Feb 23, 2023
Feb 23, 2023
Feb 23, 2023
Feb 23, 2023
Feb 23, 2023
Feb 23, 2023
Feb 23, 2023
Feb 23, 2023
Feb 23, 2023
Feb 17, 2023
Feb 10, 2023
Feb 10, 2023
Feb 10, 2023
Feb 10, 2023
Feb 10, 2023
Jan 19, 2023
Jan 19, 2023
Dec 16, 2022
Dec 16, 2022
Dec 16, 2022
Dec 15, 2022
Dec 8, 2022
Dec 8, 2022
Dec 8, 2022
Sep 8, 2022
Aug 30, 2022
Aug 30, 2022
Aug 30, 2022
Aug 30, 2022
Aug 30, 2022
Aug 30, 2022
Aug 30, 2022
Apr 13, 2022
Apr 6, 2022
Apr 6, 2022
Apr 6, 2022
Mar 2, 2022
Feb 23, 2022
Feb 23, 2022
Feb 23, 2022
Feb 23, 2022
Feb 23, 2022
Oct 19, 2021
Oct 19, 2021
Oct 12, 2021
Oct 5, 2021
Sep 29, 2021
Sep 29, 2021
Sep 29, 2021
Sep 29, 2021
Sep 29, 2021
Sep 29, 2021
Sep 29, 2021
Sep 29, 2021
Sep 29, 2021
Sep 29, 2021
Sep 29, 2021
Sep 29, 2021
Sep 29, 2021
Sep 29, 2021
Sep 29, 2021
Sep 29, 2021
Sep 29, 2021
Sep 29, 2021
Sep 29, 2021
Sep 29, 2021
Sep 29, 2021
Sep 29, 2021
Sep 29, 2021
Sep 29, 2021
Sep 29, 2021
Sep 29, 2021
Sep 29, 2021
Sep 29, 2021
Sep 29, 2021
Sep 29, 2021
Sep 29, 2021
Sep 29, 2021
Sep 29, 2021
Sep 29, 2021
Sep 29, 2021
Sep 29, 2021
Sep 29, 2021
Sep 29, 2021
Sep 29, 2021
Sep 29, 2021
Sep 29, 2021
Sep 29, 2021
Sep 29, 2021
Jan 18, 2021
Dec 4, 2020
Dec 3, 2020
Nov 30, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Jun 12, 2020
Jun 12, 2020
Jun 12, 2020
Jun 12, 2020
Jun 12, 2020
Mar 30, 2020
Mar 25, 2020
Mar 25, 2020
Mar 25, 2020
Mar 25, 2020
Jan 22, 2020
Dec 9, 2019
Dec 9, 2019
Dec 9, 2019
Dec 9, 2019
Dec 9, 2019
Aug 7, 2019
Jul 4, 2019
Jul 1, 2019
Jun 6, 2019
Jun 4, 2019
May 20, 2019
Apr 10, 2019
Apr 10, 2019
Mar 8, 2019
May 23, 2018
May 3, 2018
May 3, 2018
May 3, 2018
Jan 23, 2018
Jan 23, 2018
Jan 22, 2018
Jan 22, 2018
Jan 22, 2018
Dec 5, 2017
Dec 1, 2017
Nov 29, 2017
Nov 7, 2017
Nov 2, 2017
Oct 27, 2017
Oct 27, 2017
Oct 27, 2017
Oct 27, 2017
Oct 27, 2017
Oct 27, 2017