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The patent EP3739299 was granted to Brandenburg UK on Nov 2, 2022. The application was filed on Jun 2, 2017 under application number EP20183799A. The patent is currently recorded with a legal status of "Revoked".

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 |
|---|---|---|---|
| ECOLAB USA | Aug 1, 2023 | HGF | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP0283142 |
| DESCRIPTION | US6937156 |
| OPPOSITION | US2007236356 |
| OPPOSITION | US2009223115 |
| OPPOSITION | US2014111019 |
| OPPOSITION | US2014115950 |
| OPPOSITION | US2014239982 |
| OPPOSITION | US2014239984 |
| OPPOSITION | US2014292351 |
| OPPOSITION | US6937156 |
| OPPOSITION | US7839282 |
| OPPOSITION | US8919211 |
| OPPOSITION | WO2015143633 |
| OPPOSITION | WO2016073429 |
| OPPOSITION | WO9607966 |
| SEARCH | US2014115950 |
| SEARCH | US7839282 |
| SEARCH | US8919211 |
| SEARCH | WO2015143633 |
| SEARCH | WO2016073429 |
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.
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Decision to grant a European patent
Search/Exam
Oct 5, 2022
(Electronic) Receipt
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Oct 5, 2022
Annexes in respect of a client data request
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Oct 5, 2022
Annexes in respect of a client data request
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Oct 5, 2022
Letter accompanying subsequently filed items
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Oct 5, 2022
Sep 30, 2022
Decision to allow further processing
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Sep 21, 2022
(Electronic) Receipt
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Sep 21, 2022
French translation of claims
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Sep 21, 2022
German translation of the claims
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Sep 21, 2022
Letter accompanying subsequently filed items
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Sep 21, 2022
Request for further processing
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Jul 19, 2022
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Intention to grant (signatures)
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Feb 16, 2022
Text intended for grant (clean copy)
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Feb 16, 2022
Jan 27, 2022
Examination started
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May 17, 2021
(Electronic) Receipt
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May 17, 2021
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Amended claims with annotations
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May 17, 2021
Amendments received before examination
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May 17, 2021
Letter accompanying subsequently filed items
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Dec 7, 2020
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Oct 21, 2020
Notification of forthcoming publication
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Sep 23, 2020
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European search opinion
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Sep 23, 2020
European search report
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Sep 23, 2020
Information on Search Strategy
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Sep 15, 2020
Search started
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Aug 25, 2020
Communication to designated inventor
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Aug 25, 2020
Communication to designated inventor
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Jul 2, 2020
Abstract
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Jul 2, 2020
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Claims
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Jul 2, 2020
Description
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Jul 2, 2020
Designation of inventor
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Jul 2, 2020
Drawings
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Jul 2, 2020
Request for grant of a European patent
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Feb 21, 2018