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The patent EP3766397 was granted to Bissell on Aug 20, 2025. The application was filed on Oct 27, 2016 under application number EP20187822A. 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.
| Company | Opposition Date | Representative | Opposition Status |
|---|---|---|---|
| ELKINGTON AND FIFE | Jul 6, 2022 | ELKINGTON AND FIFE | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | DE19650565 |
| OPPOSITION | EP2805659 |
| OPPOSITION | US2008092325 |
| OPPOSITION | US2008148512 |
| OPPOSITION | WO2013027164 |
| SEARCH | EP2805659 |
| SEARCH | GB2334668 |
| SEARCH | GB2423240 |
| SEARCH | US4728942 |
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
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Jul 24, 2025
Jul 24, 2025
May 20, 2025
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May 16, 2025
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Authorisation
OPPO
May 14, 2025
May 14, 2025
Apr 14, 2025
Apr 7, 2025
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Apr 3, 2025
Apr 3, 2025
Mar 28, 2025
Mar 26, 2025
Refund of fees
Appeal
Mar 24, 2025
Mar 24, 2025
Mar 18, 2025
(Electronic) Receipt
Appeal
Mar 18, 2025
Mar 18, 2025
Mar 18, 2025
Withdrawal of an appeal
Appeal
Feb 12, 2025
Feb 12, 2025
Feb 6, 2025
(Electronic) Receipt
Appeal
Feb 6, 2025
Notice of appeal
Appeal
Feb 6, 2025
Notice of appeal
Appeal
Dec 6, 2024
Dec 6, 2024
Dec 6, 2024
Dec 6, 2024
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Means of redress
OPPO
Dec 6, 2024
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Authorisation
OPPO
Nov 2, 2022
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Oct 20, 2021
Oct 19, 2021
Sep 28, 2021
Sep 22, 2021
Sep 9, 2021
Decision to grant a European patent
Search/Exam
Sep 1, 2021
Letter accompanying subsequently filed items
Search/Exam
Sep 1, 2021
Sep 1, 2021
Aug 26, 2021
(Electronic) Receipt
Search/Exam
Aug 26, 2021
Filing of the translations of the claims
Search/Exam
Aug 26, 2021
French translation of claims
Search/Exam
Aug 26, 2021
German translation of the claims
Search/Exam
Aug 26, 2021
Letter accompanying subsequently filed items
Search/Exam
Jun 2, 2021
Jun 2, 2021
Jun 2, 2021
Intention to grant (signatures)
Search/Exam
Jun 2, 2021
Text intended for grant (clean copy)
Search/Exam
Jun 2, 2021
Apr 13, 2021
Examination started
Search/Exam
Jan 25, 2021
Dec 23, 2020
Notification of forthcoming publication
Search/Exam
Dec 23, 2020
Refund of fees
Search/Exam
Dec 22, 2020
Dec 22, 2020
European search opinion
Search/Exam
Dec 22, 2020
European search report
Search/Exam
Dec 22, 2020
Information on Search Strategy
Search/Exam
Dec 7, 2020
Search started
Search/Exam
Oct 16, 2020
Communication to designated inventor
Search/Exam
Oct 16, 2020
Communication to designated inventor
Search/Exam
Oct 16, 2020
Communication to designated inventor
Search/Exam
Oct 16, 2020
Communication to designated inventor
Search/Exam
Oct 16, 2020
Communication to designated inventor
Search/Exam
Oct 16, 2020
Communication to designated inventor
Search/Exam
Oct 16, 2020
Communication to designated inventor
Search/Exam
Oct 16, 2020
Communication to designated inventor
Search/Exam
Oct 16, 2020
Communication to designated inventor
Search/Exam
Oct 16, 2020
Communication to designated inventor
Search/Exam
Jul 27, 2020
Abstract
Search/Exam
Jul 27, 2020
Jul 27, 2020
Claims
Search/Exam
Jul 27, 2020
Description
Search/Exam
Jul 27, 2020
Designation of inventor
Search/Exam
Jul 27, 2020
Drawings
Search/Exam
Jul 27, 2020
Request for grant of a European patent
Search/Exam
Feb 15, 2017