Patent No. EP3072542 (titled "Reduced-Pressure Sources And Systems Employing A Polymeric, Porous, Hydrophobic Material") was filed by KCI Licensing on Apr 14, 2011. The application was issued on Sep 3, 2025.

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 |
|---|---|---|
| SMITH AND NEPHEW | Jan 29, 2021 | HGF |
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 7, 2025
Aug 7, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 1, 2025
Jul 1, 2025
Jul 1, 2025
Jun 24, 2025
Jun 3, 2025
Jun 2, 2025
Jun 2, 2025
Jun 2, 2025
Jun 2, 2025
May 27, 2025
May 26, 2025
May 26, 2025
May 26, 2025
May 26, 2025
May 26, 2025
May 8, 2025
May 2, 2025
May 2, 2025
Mar 24, 2025
Mar 24, 2025
Mar 24, 2025
Mar 19, 2025
Mar 19, 2025
Mar 19, 2025
Mar 19, 2025
Mar 14, 2025
Mar 14, 2025
Mar 14, 2025
Feb 25, 2025
Feb 25, 2025
Feb 20, 2025
Feb 20, 2025
Sep 12, 2023
Sep 6, 2023
Sep 6, 2023
Sep 6, 2023
Aug 7, 2023
Aug 2, 2023
Aug 2, 2023
Aug 2, 2023
Aug 2, 2023
Aug 2, 2023
Aug 2, 2023
Aug 2, 2023
Apr 4, 2023
Mar 30, 2023
Mar 30, 2023
Mar 30, 2023
Mar 30, 2023
Mar 30, 2023
Jan 27, 2023
Jan 27, 2023
Jan 23, 2023
Jan 23, 2023
Jan 23, 2023
Dec 13, 2022
Dec 13, 2022
Dec 13, 2022
Dec 5, 2022
Dec 5, 2022
Dec 5, 2022
Dec 5, 2022
Dec 5, 2022
Dec 5, 2022
Dec 5, 2022
Dec 5, 2022
Dec 5, 2022
Dec 5, 2022
Dec 5, 2022
Dec 5, 2022
Dec 5, 2022
Dec 5, 2022
Dec 5, 2022
Dec 5, 2022
Nov 10, 2022
Nov 9, 2022
Nov 8, 2022
Nov 8, 2022
Nov 8, 2022
Nov 8, 2022
Nov 8, 2022
Nov 8, 2022
Nov 8, 2022
Sep 19, 2022
Sep 19, 2022
Sep 9, 2022
Sep 9, 2022
Sep 9, 2022
Sep 9, 2022
Sep 9, 2022
Sep 9, 2022
Sep 9, 2022
Sep 9, 2022
Sep 9, 2022
Sep 9, 2022
Jun 15, 2022
Jun 14, 2022
Jun 14, 2022
Feb 25, 2022
Feb 25, 2022
Feb 16, 2022
Feb 16, 2022
Feb 16, 2022
Feb 16, 2022
Feb 16, 2022
Nov 10, 2021
Nov 10, 2021
Jun 16, 2021
Jun 10, 2021
Jun 10, 2021
Jun 10, 2021
Jun 10, 2021
Jun 10, 2021
Feb 12, 2021
Feb 12, 2021
Feb 4, 2021
Jan 29, 2021
Jan 29, 2021
Jan 29, 2021
Jan 29, 2021
Jan 29, 2021
Jan 29, 2021
Jan 29, 2021
Jan 29, 2021
Jan 29, 2021
Jan 29, 2021
Jan 29, 2021
Jan 29, 2021
Oct 23, 2020
May 11, 2020
Apr 2, 2020
Mar 10, 2020
Mar 10, 2020
Mar 10, 2020
Mar 10, 2020
Nov 22, 2019
Nov 22, 2019
Nov 22, 2019
Nov 22, 2019
Nov 22, 2019
Jul 18, 2019
Jul 12, 2019
Mar 26, 2019
Mar 4, 2019
Mar 4, 2019
Mar 4, 2019
Mar 4, 2019
Mar 4, 2019
Mar 4, 2019
Mar 4, 2019
Jan 4, 2019
Aug 21, 2018
Aug 9, 2018
Aug 9, 2018
May 18, 2018
May 18, 2018
May 9, 2018
May 3, 2018
Apr 25, 2018
Oct 25, 2017
Oct 19, 2017
Jul 4, 2017
Jun 27, 2017
Jun 14, 2017
Jun 14, 2017
Jun 14, 2017
Jun 14, 2017
Jun 14, 2017
Jun 14, 2017
Jun 14, 2017
May 22, 2017
May 16, 2017
Jan 16, 2017
Dec 19, 2016
Dec 9, 2016
Dec 5, 2016
Dec 5, 2016
Dec 2, 2016
Nov 29, 2016
Nov 23, 2016
Nov 14, 2016
Nov 14, 2016
Nov 14, 2016
Nov 14, 2016
Aug 31, 2016
Jul 28, 2016
Jul 28, 2016
Jul 28, 2016
Jul 18, 2016
Jun 3, 2016
Jun 3, 2016
Jun 3, 2016
Apr 12, 2016
Apr 12, 2016
Apr 12, 2016
Apr 12, 2016
Apr 12, 2016
Apr 12, 2016
Apr 12, 2016
Nov 9, 2011
Nov 9, 2011
Nov 9, 2011
Nov 9, 2011