The weekly litigation news digest is live. Subscribe now
The patent EP3155082 was granted to Ecolab USA on Nov 30, 2022. The application was filed on Jun 11, 2015 under application number EP15806770A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

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 | Opposition Status |
|---|---|---|---|
| UNILEVER UNILEVER | Aug 29, 2023 | VAN BENTHUM | ADMISSIBLE |
| HENKEL | Aug 22, 2023 | - | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | US2004266641 |
| INTERNATIONAL-SEARCH-REPORT | US4623357 |
| INTERNATIONAL-SEARCH-REPORT | US5356554 |
| INTERNATIONAL-SEARCH-REPORT | US5429769 |
| INTERNATIONAL-SEARCH-REPORT | WO03072688 |
| INTERNATIONAL-SEARCH-REPORT | WO2010139689 |
| OPPOSITION | EP0458397 |
| OPPOSITION | US2009256113 |
| OPPOSITION | US5356554 |
| OPPOSITION | WO02059245 |
| OPPOSITION | WO2008064935 |
| OPPOSITION | WO2010115581 |
| OPPOSITION | WO2010115582 |
| OPPOSITION | WO2011032666 |
| OPPOSITION | WO2012025902 |
| OPPOSITION | WO9520030 |
| OPPOSITION | WO9722680 |
| SEARCH | WO02059245 |
| SEARCH | WO2012140413 |
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 2, 2025
(Electronic) Receipt
Appeal
Dec 1, 2025
Dec 1, 2025
Nov 25, 2025
(Electronic) Receipt
Appeal
Nov 25, 2025
Nov 25, 2025
Nov 24, 2025
Nov 24, 2025
Nov 18, 2025
(Electronic) Receipt
Appeal
Nov 18, 2025
Nov 18, 2025
Oct 17, 2025
Oct 17, 2025
Oct 16, 2025
Oct 16, 2025
Oct 14, 2025
Oct 14, 2025
Oct 10, 2025
(Electronic) Receipt
Appeal
Oct 10, 2025
(Electronic) Receipt
Appeal
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Claims
Appeal
Oct 10, 2025
Claims
Appeal
Oct 10, 2025
Claims
Appeal
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Reply to appeal
Appeal
Oct 10, 2025
Reply to appeal
Appeal
Oct 9, 2025
(Electronic) Receipt
Appeal
Oct 9, 2025
(Electronic) Receipt
Appeal
Oct 9, 2025
Oct 9, 2025
Oct 9, 2025
Reply to appeal
Appeal
Sep 4, 2025
Sep 4, 2025
Sep 2, 2025
Sep 2, 2025
Sep 1, 2025
(Electronic) Receipt
Appeal
Sep 1, 2025
Sep 1, 2025
Sep 1, 2025
Reply to appeal
Appeal
Aug 27, 2025
(Electronic) Receipt
Appeal
Aug 27, 2025
Aug 27, 2025
Aug 11, 2025
Aug 11, 2025
Aug 11, 2025
Aug 5, 2025
Aug 5, 2025
Jul 11, 2025
Jul 7, 2025
Jul 7, 2025
Jul 7, 2025
Jul 2, 2025
Jun 20, 2025
Jun 20, 2025
Jun 20, 2025
Jun 20, 2025
Jun 20, 2025
Jun 16, 2025
(Electronic) Receipt
Appeal
Jun 16, 2025
Jun 16, 2025
Jun 16, 2025
Jun 12, 2025
(Electronic) Receipt
Appeal
Jun 12, 2025
Jun 12, 2025
Jun 5, 2025
(Electronic) Receipt
Appeal
Jun 5, 2025
Jun 5, 2025
Jun 5, 2025
Jun 5, 2025
Jun 5, 2025
Jun 5, 2025
Apr 11, 2025
Apr 11, 2025
Apr 11, 2025
Apr 8, 2025
(Electronic) Receipt
Appeal
Apr 8, 2025
Apr 8, 2025
Notice of appeal
Appeal
Apr 3, 2025
Apr 3, 2025
Apr 3, 2025
Mar 31, 2025
(Electronic) Receipt
Appeal
Mar 31, 2025
Mar 31, 2025
Notice of appeal
Appeal
Mar 27, 2025
Mar 27, 2025
Mar 27, 2025
Mar 24, 2025
(Electronic) Receipt
Appeal
Mar 24, 2025
Mar 24, 2025
Notice of appeal
Appeal
Feb 17, 2025
Feb 17, 2025
Feb 17, 2025
Feb 17, 2025
Feb 17, 2025
Feb 17, 2025
Feb 17, 2025
Feb 17, 2025
Feb 17, 2025
Feb 17, 2025
Feb 17, 2025
Means of redress
OPPO
Feb 17, 2025
Feb 17, 2025
Feb 17, 2025
Feb 17, 2025
Feb 17, 2025
Feb 17, 2025
Jan 30, 2025
Jan 30, 2025
Jan 30, 2025
Jan 28, 2025
Jan 28, 2025
Jan 27, 2025
Jan 27, 2025
Jan 27, 2025
Jan 23, 2025
Jan 23, 2025
Jan 23, 2025
Dec 4, 2024
Dec 4, 2024
Dec 2, 2024
Dec 2, 2024
Dec 2, 2024
Dec 2, 2024
Dec 2, 2024
Dec 2, 2024
Nov 28, 2024
Nov 28, 2024
Nov 28, 2024
Nov 27, 2024
Nov 27, 2024
Nov 27, 2024
Nov 27, 2024
Nov 27, 2024
Nov 27, 2024
Nov 27, 2024
Nov 27, 2024
Nov 27, 2024
Nov 27, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 25, 2024
Nov 25, 2024
Nov 20, 2024
Nov 20, 2024
Nov 8, 2024
Nov 8, 2024
Nov 5, 2024
Nov 5, 2024
Nov 5, 2024
Nov 5, 2024
Nov 5, 2024
Sep 13, 2024
Sep 13, 2024
Sep 10, 2024
Sep 10, 2024
Sep 10, 2024
Jul 1, 2024
Jul 1, 2024
Jul 1, 2024
Jul 1, 2024
Jul 1, 2024
Jul 1, 2024
Jul 1, 2024
Jul 1, 2024
Jul 1, 2024
Mar 28, 2024
Mar 28, 2024
Mar 25, 2024
Mar 25, 2024
Mar 25, 2024
Jan 25, 2024
Jan 25, 2024
Jan 22, 2024
Jan 22, 2024
Jan 22, 2024
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 1, 2023
Aug 29, 2023
Aug 29, 2023
Aug 29, 2023
Aug 29, 2023
Aug 29, 2023
Aug 29, 2023
Aug 29, 2023
Aug 29, 2023
Aug 29, 2023
Aug 29, 2023
Aug 29, 2023
Aug 25, 2023
Aug 22, 2023
Aug 22, 2023
Aug 22, 2023
Aug 22, 2023
Aug 22, 2023
Aug 22, 2023
Dec 13, 2022
Nov 4, 2022
Decision to grant a European patent
Search/Exam
Oct 26, 2022
(Electronic) Receipt
Search/Exam
Oct 26, 2022
Filing of the translations of the claims
Search/Exam
Oct 26, 2022
French translation of claims
Search/Exam
Oct 26, 2022
German translation of the claims
Search/Exam
Oct 26, 2022
Letter accompanying subsequently filed items
Search/Exam
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Intention to grant (signatures)
Search/Exam
Jul 5, 2022
Text intended for grant (clean copy)
Search/Exam
Jul 5, 2022
Jun 29, 2022
Annex to a communication
Search/Exam
Jun 29, 2022
Annex to a communication
Search/Exam
Jun 29, 2022
Annex to a communication
Search/Exam
Jun 29, 2022
Annex to the communication
Search/Exam
Jun 29, 2022
Jun 29, 2022
Jun 29, 2022
May 13, 2022
Apr 10, 2022
(Electronic) Receipt
Search/Exam
Apr 10, 2022
Amended claims with annotations
Search/Exam
Apr 10, 2022
Claims
Search/Exam
Apr 10, 2022
Letter accompanying subsequently filed items
Search/Exam
Apr 10, 2022
Mar 20, 2022
Payment submission rejected
Search/Exam
Aug 3, 2021
Annex to the communication
Search/Exam
Aug 3, 2021
Summons to attend oral proceedings
Search/Exam
Jun 18, 2020
(Electronic) Receipt
Search/Exam
Jun 18, 2020
Amended claims with annotations
Search/Exam
Jun 18, 2020
Claims
Search/Exam
Jun 18, 2020
Letter accompanying subsequently filed items
Search/Exam
Jun 18, 2020
Mar 12, 2020
Annex to the communication
Search/Exam
Mar 12, 2020
Communication from the Examining Division
Search/Exam
Feb 26, 2020
Examination started
Search/Exam
Jul 19, 2018
(Electronic) Receipt
Search/Exam
Jul 19, 2018
Jul 19, 2018
Amended claims with annotations
Search/Exam
Jul 19, 2018
Amendments received before examination
Search/Exam
Jul 19, 2018
Letter accompanying subsequently filed items
Search/Exam
Jan 26, 2018
Jan 9, 2018
Jan 9, 2018
European search opinion
Search/Exam
Jan 9, 2018
Information on Search Strategy
Search/Exam
Jan 9, 2018
Supplementary European search report
Search/Exam
Dec 20, 2017
Search started
Search/Exam
Aug 1, 2017
Jun 22, 2017
Mar 22, 2017
Feb 14, 2017
Jan 24, 2017
Communication to designated inventor
Search/Exam
Jan 24, 2017
Communication to designated inventor
Search/Exam
Jan 24, 2017
Communication to designated inventor
Search/Exam
Jan 9, 2017
(Electronic) Receipt
Search/Exam
Jan 9, 2017
Jan 9, 2017
Amended claims with annotations
Search/Exam
Jan 9, 2017
Request for entry into the European phase
Search/Exam
Jan 2, 2017
Oct 21, 2016
Information on entry into European phase
Search/Exam
Jan 5, 2016
Dec 17, 2015
Copy of the international search report
Search/Exam
Dec 17, 2015
Published international application - A1
Search/Exam