The patent EP3611246 was granted to The Procter & Gamble on Jul 23, 2025. The application was originally filed on Aug 14, 2018 under application number EP18189055A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

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.
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| Citation Phase | Reference Text | Link |
|---|---|---|
| DESCRIPTION | - Ind. Eng. Chem.Res., (20120000), vol. 51, page 16741 | - |
| DESCRIPTION | - Surfactant Science Series, Marcel Dekker, vol. 7 | - |
| OPPOSITION | - Anonymous, "OECD SIDS - Fluorescent Brightener FWA-1", UNEP Publications, (20050101), pages 1 - 11, XP055874573 | - |
| OPPOSITION | - Sekisui, "Safety Data Sheet Selvol (TM) Polyvinyl alcohol, homopolymer", (20110916), pages 1 - 7, XP055874581 | - |
| OPPOSITION | - "TinopalĀ® CBS-X", BASF, (20110300), XP055774177 | - |
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Description
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Jun 26, 2025
Jun 26, 2025
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Refund of fees
Appeal
Mar 24, 2025
Refund of fees
Appeal
Mar 21, 2025
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
Mar 28, 2024
(Electronic) Receipt
Appeal
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Reply to appeal
Appeal
Mar 28, 2024
Reply to appeal
Appeal
Nov 28, 2023
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Nov 23, 2023
(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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Notice of appeal
Appeal
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(Electronic) Receipt
Appeal
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Notice of appeal
Appeal
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Feb 11, 2021
Decision to grant a European patent
Search/Exam
Jan 28, 2021
(Electronic) Receipt
Search/Exam
Jan 28, 2021
French translation of claims
Search/Exam
Jan 28, 2021
German translation of the claims
Search/Exam
Jan 28, 2021
Letter accompanying subsequently filed items
Search/Exam
Sep 21, 2020
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Intention to grant (signatures)
Search/Exam
Sep 21, 2020
Text intended for grant (clean copy)
Search/Exam
Sep 21, 2020
Sep 2, 2020
Examination started
Search/Exam
Aug 19, 2020
(Electronic) Receipt
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Aug 19, 2020
Aug 19, 2020
Amended claims with annotations
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Aug 19, 2020
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Amended description with annotations
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Aug 19, 2020
Amendments received before examination
Search/Exam
Aug 19, 2020
Letter accompanying subsequently filed items
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Feb 24, 2020
Jan 22, 2020
Notification of forthcoming publication
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Aug 22, 2019
(Electronic) Receipt
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Jul 30, 2019
Jul 24, 2019
Mar 4, 2019
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European search opinion
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Mar 4, 2019
European search report
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Mar 4, 2019
Information on Search Strategy
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Feb 21, 2019
Search started
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Oct 8, 2018
Communication to designated inventor
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Oct 8, 2018
Communication to designated inventor
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Oct 8, 2018
Communication to designated inventor
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Aug 14, 2018
Abstract
Search/Exam
Aug 14, 2018
Aug 14, 2018
Claims
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Aug 14, 2018
Description
Search/Exam
Aug 14, 2018
Designation of inventor
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Aug 14, 2018
Request for grant of a European patent
Search/Exam