The patent EP3540033 was granted to Ecolab USA on Oct 9, 2024. The application was originally filed on Nov 11, 2010 under application number EP19171824A. 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.
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | DE3603579 |
| OPPOSITION | DE3843713 |
| OPPOSITION | US2004097374 |
| OPPOSITION | WO9513350 |
| OPPOSITION | WO9719157 |
| SEARCH | DE1302882 |
| SEARCH | DE19906660 |
| SEARCH | US4388205 |
| SEARCH | US5622569 |
| SEARCH | WO2010045686 |
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Date
Description
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Aug 18, 2025
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Means of redress
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Annex
OPPO
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Sep 5, 2023
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Decision to grant a European patent
Search/Exam
Jul 18, 2023
(Electronic) Receipt
Search/Exam
Jul 18, 2023
Filing of the translations of the claims
Search/Exam
Jul 18, 2023
French translation of claims
Search/Exam
Jul 18, 2023
German translation of the claims
Search/Exam
Jul 18, 2023
Letter accompanying subsequently filed items
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Mar 23, 2023
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Intention to grant (signatures)
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Mar 23, 2023
Text intended for grant (clean copy)
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Mar 23, 2023
Apr 6, 2022
Document concerning representation
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Mar 29, 2022
(Electronic) Receipt
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Mar 29, 2022
Amended claims with annotations
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Mar 29, 2022
Amended description with annotations
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Mar 29, 2022
Claims
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Mar 29, 2022
Description
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Mar 29, 2022
Letter accompanying subsequently filed items
Search/Exam
Mar 29, 2022
Dec 1, 2021
Annex to the communication
Search/Exam
Dec 1, 2021
Communication from the Examining Division
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Nov 24, 2021
Examination started
Search/Exam
Mar 3, 2020
(Electronic) Receipt
Search/Exam
Mar 3, 2020
Mar 3, 2020
Amended claims with annotations
Search/Exam
Mar 3, 2020
Mar 3, 2020
Amended description with annotations
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Mar 3, 2020
Amendments received before examination
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Mar 3, 2020
Letter accompanying subsequently filed items
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Dec 20, 2019
Refund of fees
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Sep 23, 2019
Aug 21, 2019
Notification of forthcoming publication
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Aug 5, 2019
Aug 5, 2019
European search opinion
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Aug 5, 2019
European search report
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Aug 5, 2019
Information on Search Strategy
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Jul 22, 2019
Search started
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Jun 24, 2019
Communication to designated inventor
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Jun 24, 2019
Communication to designated inventor
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Jun 24, 2019
Communication to designated inventor
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Apr 30, 2019
Abstract
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Apr 30, 2019
Apr 30, 2019
Claims
Search/Exam
Apr 30, 2019
Description
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Apr 30, 2019
Designation of inventor
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Apr 30, 2019
Drawings
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Apr 30, 2019
Request for grant of a European patent
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