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The patent EP3628289 was granted to Smith & Nephew on Nov 10, 2021. The application was filed on Apr 21, 2011 under application number EP19201361A. 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 |
|---|---|---|---|
| CONVATEC | Aug 9, 2022 | D YOUNG | ADMISSIBLE |
| MOLNLYCKE HEALTH CARE | Jul 18, 2022 | TOSTMANN | ADMISSIBLE |
| KCI MANUFACTURING UNLIMITED | Jul 15, 2022 | SIMMONS & SIMMONS | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | EP2563308 |
| OPPOSITION | EP3628289 |
| OPPOSITION | GB1006986 |
| OPPOSITION | GB2468905 |
| OPPOSITION | US2007255194 |
| OPPOSITION | US2008167593 |
| OPPOSITION | US2009234307 |
| OPPOSITION | US2010185163 |
| OPPOSITION | WO0185248 |
| OPPOSITION | WO2007113597 |
| OPPOSITION | WO2007133618 |
| OPPOSITION | WO2009066105 |
| OPPOSITION | WO2009066106 |
| OPPOSITION | WO2009111657 |
| OPPOSITION | WO2009145894 |
| OPPOSITION | WO2009147402 |
| OPPOSITION | WO2011135284 |
| OPPOSITION | WO9216245 |
| SEARCH | US2007185426 |
| SEARCH | US2009234307 |
| SEARCH | WO03045492 |
| SEARCH | WO2009066105 |
| SEARCH | WO2009066106 |
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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Appeal
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(Electronic) Receipt
Appeal
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Reply to appeal
Appeal
Aug 7, 2025
(Electronic) Receipt
Appeal
Aug 7, 2025
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Reply to appeal
Appeal
Aug 5, 2025
(Electronic) Receipt
Appeal
Aug 5, 2025
Annex
Appeal
Aug 5, 2025
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Reply to appeal
Appeal
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(Electronic) Receipt
Appeal
Jan 23, 2025
Notice of appeal
Appeal
Jan 23, 2025
Notice of appeal
Appeal
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OPPO
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Letter accompanying subsequently filed items
Search/Exam
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Authorisation
OPPO
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Nov 23, 2021
Oct 14, 2021
Decision to grant a European patent
Search/Exam
Sep 3, 2021
(Electronic) Receipt
Search/Exam
Sep 3, 2021
Authorisation
Search/Exam
Sep 3, 2021
Filing of the translations of the claims
Search/Exam
Sep 3, 2021
French translation of claims
Search/Exam
Sep 3, 2021
German translation of the claims
Search/Exam
Aug 10, 2021
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Aug 5, 2021
(Electronic) Receipt
Search/Exam
Aug 5, 2021
Letter accompanying subsequently filed items
Search/Exam
Aug 5, 2021
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Intention to grant (signatures)
Search/Exam
May 4, 2021
Text intended for grant (clean copy)
Search/Exam
May 4, 2021
Apr 1, 2021
(Electronic) Receipt
Search/Exam
Apr 1, 2021
Amended description with annotations
Search/Exam
Apr 1, 2021
Description
Search/Exam
Apr 1, 2021
Letter accompanying subsequently filed items
Search/Exam
Apr 1, 2021
Dec 7, 2020
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Dec 7, 2020
Intention to grant (signatures)
Search/Exam
Dec 7, 2020
Text intended for grant (clean copy)
Search/Exam
Dec 7, 2020
Nov 11, 2020
Examination started
Search/Exam
Sep 24, 2020
(Electronic) Receipt
Search/Exam
Sep 24, 2020
Sep 24, 2020
Amended claims with annotations
Search/Exam
Sep 24, 2020
Amendments received before examination
Search/Exam
Sep 24, 2020
Letter accompanying subsequently filed items
Search/Exam
Sep 21, 2020
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Sep 15, 2020
(Electronic) Receipt
Search/Exam
Sep 15, 2020
Letter accompanying subsequently filed items
Search/Exam
Sep 15, 2020
Apr 6, 2020
Mar 11, 2020
Refund of fees
Search/Exam
Mar 4, 2020
Notification of forthcoming publication
Search/Exam
Feb 24, 2020
Feb 24, 2020
European search opinion
Search/Exam
Feb 24, 2020
European search report
Search/Exam
Feb 24, 2020
Information on Search Strategy
Search/Exam
Feb 13, 2020
Search started
Search/Exam
Jan 8, 2020
Communication to designated inventor
Search/Exam
Jan 8, 2020
Communication to designated inventor
Search/Exam
Jan 8, 2020
Communication to designated inventor
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Jan 8, 2020
Communication to designated inventor
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Jan 8, 2020
Communication to designated inventor
Search/Exam
Jan 8, 2020
Communication to designated inventor
Search/Exam
Oct 3, 2019
Abstract
Search/Exam
Oct 3, 2019
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Claims
Search/Exam
Oct 3, 2019
Description
Search/Exam
Oct 3, 2019
Designation of inventor
Search/Exam
Oct 3, 2019
Drawings
Search/Exam
Oct 3, 2019
Matter concerning the application
Search/Exam
Oct 3, 2019
Request for grant of a European patent
Search/Exam
Nov 22, 2011