Patent No. EP3380598 (titled "Enzyme Stabilizers") was filed by Henkel on Nov 15, 2016. The application was issued on Aug 21, 2019.

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 |
|---|---|---|
| RECKITT BENCKISER | May 19, 2020 | PAREDES ROJAS |
| WEYLCHEM PERFORMANCE PRODUCTS | May 19, 2020 | ACKERMANN |
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
Nov 27, 2025
Nov 27, 2025
Nov 27, 2025
Nov 27, 2025
Nov 6, 2025
Nov 6, 2025
Nov 6, 2025
Nov 6, 2025
Nov 6, 2025
Oct 24, 2025
Oct 24, 2025
Oct 24, 2025
Oct 24, 2025
Oct 24, 2025
Aug 27, 2025
Aug 27, 2025
Aug 27, 2025
Jul 17, 2025
Jul 17, 2025
Apr 24, 2025
Apr 24, 2025
Apr 17, 2025
Apr 17, 2025
Apr 17, 2025
Mar 18, 2025
Mar 18, 2025
Mar 13, 2025
Mar 13, 2025
Mar 13, 2025
Mar 5, 2025
Mar 5, 2025
Mar 5, 2025
Feb 27, 2025
Feb 27, 2025
Feb 20, 2025
Jan 17, 2025
Jan 17, 2025
Jan 14, 2025
Jan 14, 2025
Jan 14, 2025
Jan 14, 2025
Nov 15, 2024
Nov 15, 2024
Nov 11, 2024
Nov 11, 2024
Nov 7, 2024
Nov 7, 2024
Nov 7, 2024
Nov 6, 2024
Nov 6, 2024
Nov 4, 2024
Nov 4, 2024
Oct 31, 2024
Oct 31, 2024
Oct 31, 2024
Oct 28, 2024
Oct 28, 2024
Oct 28, 2024
Oct 25, 2024
Oct 25, 2024
Oct 25, 2024
Oct 25, 2024
Oct 25, 2024
Oct 25, 2024
Oct 22, 2024
Jul 31, 2024
Dec 14, 2023
Dec 14, 2023
Dec 11, 2023
Dec 11, 2023
Dec 11, 2023
Dec 11, 2023
Dec 11, 2023
Dec 11, 2023
Dec 11, 2023
Dec 11, 2023
Dec 11, 2023
Dec 11, 2023
Dec 11, 2023
Sep 27, 2023
Sep 27, 2023
Sep 27, 2023
Sep 21, 2023
Aug 16, 2023
Aug 16, 2023
Aug 10, 2023
Aug 10, 2023
Aug 10, 2023
Aug 10, 2023
Aug 10, 2023
Aug 10, 2023
Aug 10, 2023
Aug 10, 2023
Aug 10, 2023
Aug 10, 2023
Aug 10, 2023
Aug 10, 2023
Jul 28, 2023
Jul 25, 2023
Jul 25, 2023
Jul 18, 2023
Jun 7, 2023
Jun 7, 2023
Jun 7, 2023
Jun 5, 2023
Jun 5, 2023
Jun 5, 2023
May 31, 2023
May 31, 2023
May 31, 2023
May 31, 2023
Apr 5, 2023
Mar 31, 2023
Mar 31, 2023
Mar 31, 2023
Mar 31, 2023
Mar 31, 2023
Mar 31, 2023
Mar 31, 2023
Mar 31, 2023
Mar 31, 2023
Mar 31, 2023
Mar 31, 2023
Mar 31, 2023
Mar 31, 2023
Mar 31, 2023
Mar 31, 2023
Mar 31, 2023
Mar 31, 2023
Mar 31, 2023
Nov 17, 2022
Sep 26, 2022
Sep 26, 2022
Sep 23, 2022
Sep 16, 2022
Sep 16, 2022
Sep 16, 2022
Sep 16, 2022
Sep 16, 2022
Sep 16, 2022
Sep 16, 2022
Sep 16, 2022
Sep 16, 2022
Sep 16, 2022
Sep 16, 2022
Sep 14, 2022
Sep 14, 2022
Sep 9, 2022
Sep 9, 2022
Sep 9, 2022
Sep 9, 2022
Sep 9, 2022
Aug 5, 2022
Aug 5, 2022
Jul 28, 2022
Jul 25, 2022
Jul 25, 2022
Jul 20, 2022
Jul 20, 2022
Jul 20, 2022
Jun 8, 2022
Jun 8, 2022
Jun 8, 2022
Jun 8, 2022
Jun 7, 2022
Jun 2, 2022
Jun 2, 2022
Jun 2, 2022
Jun 2, 2022
Jun 2, 2022
Jun 2, 2022
Jun 2, 2022
Jun 2, 2022
Jun 2, 2022
Jun 2, 2022
May 24, 2022
May 24, 2022
May 19, 2022
May 19, 2022
May 19, 2022
May 19, 2022
May 19, 2022
May 19, 2022
May 17, 2022
May 17, 2022
May 13, 2022
May 13, 2022
May 13, 2022
May 13, 2022
May 13, 2022
May 13, 2022
May 13, 2022
May 13, 2022
Feb 18, 2021
Feb 18, 2021
Feb 12, 2021
Feb 12, 2021
Feb 11, 2021
Feb 9, 2021
Feb 9, 2021
Feb 9, 2021
Oct 28, 2020
Oct 28, 2020
Oct 22, 2020
Oct 22, 2020
Oct 22, 2020
Jul 10, 2020
Jul 7, 2020
Jun 22, 2020
Jun 22, 2020
Jun 22, 2020
May 29, 2020
May 27, 2020
May 26, 2020
May 22, 2020
May 22, 2020
May 22, 2020
May 22, 2020
May 22, 2020
May 22, 2020
May 22, 2020
May 22, 2020
May 22, 2020
May 22, 2020
May 22, 2020
May 22, 2020
May 19, 2020
May 19, 2020
May 19, 2020
May 19, 2020
May 19, 2020
May 19, 2020
May 19, 2020
May 19, 2020
May 19, 2020
May 19, 2020
May 19, 2020
May 19, 2020
Sep 2, 2019
Jul 25, 2019
Jul 9, 2019
Jul 9, 2019
Jul 9, 2019
Jul 9, 2019
Apr 16, 2019
Apr 16, 2019
Apr 16, 2019
Apr 16, 2019
Apr 16, 2019
Apr 1, 2019
Feb 26, 2019
Feb 26, 2019
Feb 26, 2019
Feb 20, 2019
Dec 14, 2018
Dec 14, 2018
Dec 14, 2018
Dec 14, 2018
Dec 14, 2018
Sep 5, 2018
Jul 3, 2018
Jun 29, 2018
Jun 29, 2018
Jun 14, 2018
May 16, 2018
May 16, 2018
Apr 6, 2018
Jun 19, 2017
Jun 1, 2017
Jun 1, 2017
Jun 1, 2017
Mar 6, 2017
Mar 6, 2017
Mar 6, 2017
Nov 22, 2016
Nov 21, 2016
Nov 15, 2016
Nov 15, 2016
Nov 15, 2016
Nov 15, 2016
Nov 15, 2016
Nov 15, 2016