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The patent EP3454807 was granted to Convatec on Apr 20, 2022. The application was filed on May 9, 2017 under application number EP17796717A. 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 |
|---|---|---|---|
| LOHMANN & RAUSCHER | Jan 19, 2023 | HERRMANN | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | WO2009145703 |
| EXAMINATION | WO2015065612 |
| INTERNATIONAL-SEARCH-REPORT | US2010036333 |
| INTERNATIONAL-SEARCH-REPORT | US2010069863 |
| INTERNATIONAL-SEARCH-REPORT | US2011276016 |
| INTERNATIONAL-SEARCH-REPORT | US2013267918 |
| INTERNATIONAL-SEARCH-REPORT | US2013296816 |
| INTERNATIONAL-SEARCH-REPORT | US2015057625 |
| INTERNATIONAL-SEARCH-REPORT | US2015182677 |
| INTERNATIONAL-SEARCH-REPORT | US2015351970 |
| OPPOSITION | WO2015065612 |
| OPPOSITION | WO2015123340 |
| OTHER | US2010137775 |
| OTHER | WO2012168298 |
| OTHER | WO2015123340 |
| SEARCH | EP2103290 |
| SEARCH | GB2380945 |
| SEARCH | US2006100594 |
| SEARCH | US2011106026 |
| SEARCH | US2015351970 |
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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Means of redress
OPPO
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May 4, 2022
Mar 24, 2022
Decision to grant a European patent
Search/Exam
Mar 15, 2022
(Electronic) Receipt
Search/Exam
Mar 15, 2022
Filing of the translations of the claims
Search/Exam
Mar 15, 2022
French translation of claims
Search/Exam
Mar 15, 2022
German translation of the claims
Search/Exam
Mar 15, 2022
Letter accompanying subsequently filed items
Search/Exam
Nov 12, 2021
Nov 12, 2021
Nov 12, 2021
Intention to grant (signatures)
Search/Exam
Nov 12, 2021
Text intended for grant (clean copy)
Search/Exam
Nov 12, 2021
Oct 14, 2021
Sep 29, 2021
(Electronic) Receipt
Search/Exam
Sep 29, 2021
Amended claims with annotations
Search/Exam
Sep 29, 2021
Claims
Search/Exam
Sep 29, 2021
Letter accompanying subsequently filed items
Search/Exam
Sep 29, 2021
Aug 4, 2021
Jul 29, 2021
(Electronic) Receipt
Search/Exam
Jul 29, 2021
Letter accompanying subsequently filed items
Search/Exam
Jul 29, 2021
Jun 29, 2021
Jun 29, 2021
Jun 22, 2021
(Electronic) Receipt
Search/Exam
Jun 22, 2021
Letter accompanying subsequently filed items
Search/Exam
Jun 22, 2021
Observations by third parties
Search/Exam
Jun 2, 2021
Annex to the communication
Search/Exam
Jun 2, 2021
Communication from the Examining Division
Search/Exam
May 31, 2021
Decision to allow further processing
Search/Exam
May 19, 2021
(Electronic) Receipt
Search/Exam
May 19, 2021
Amended claims with annotations
Search/Exam
May 19, 2021
Claims
Search/Exam
May 19, 2021
Letter accompanying subsequently filed items
Search/Exam
May 19, 2021
Request for further processing
Search/Exam
Apr 14, 2021
Jan 22, 2021
Jan 19, 2021
(Electronic) Receipt
Search/Exam
Jan 19, 2021
Letter accompanying subsequently filed items
Search/Exam
Jan 19, 2021
Sep 10, 2020
Annex to the communication
Search/Exam
Sep 10, 2020
Communication from the Examining Division
Search/Exam
Sep 4, 2020
Examination started
Search/Exam
May 22, 2020
(Electronic) Receipt
Search/Exam
May 22, 2020
May 22, 2020
Amended claims with annotations
Search/Exam
May 22, 2020
Amendments received before examination
Search/Exam
May 22, 2020
Letter accompanying subsequently filed items
Search/Exam
Dec 3, 2019
Nov 18, 2019
Nov 14, 2019
Nov 14, 2019
European search opinion
Search/Exam
Nov 14, 2019
Information on Search Strategy
Search/Exam
Nov 14, 2019
Supplementary European search report
Search/Exam
Nov 12, 2019
Oct 22, 2019
Search started
Search/Exam
Oct 10, 2019
Oct 10, 2019
Oct 4, 2019
Observations by third parties
Search/Exam
Jun 12, 2019
(Electronic) Receipt
Search/Exam
Jun 12, 2019
Jun 12, 2019
Amendments received before examination
Search/Exam
Jun 12, 2019
Letter accompanying subsequently filed items
Search/Exam
Apr 30, 2019
Apr 30, 2019
Apr 18, 2019
Observations by third parties
Search/Exam
Feb 20, 2019
Dec 18, 2018
Dec 14, 2018
Communication to designated inventor
Search/Exam
Dec 14, 2018
Communication to designated inventor
Search/Exam
Dec 14, 2018
Communication to designated inventor
Search/Exam
Dec 14, 2018
Communication to designated inventor
Search/Exam
Nov 28, 2018
Nov 21, 2018
(Electronic) Receipt
Search/Exam
Nov 21, 2018
Request for entry into the European phase
Search/Exam
Nov 21, 2018
Submission concerning representation
Search/Exam
Sep 21, 2018
Information on entry into European phase
Search/Exam
Dec 5, 2017
Dec 5, 2017
Nov 16, 2017
Copy of the international search report
Search/Exam
Nov 16, 2017
Published international application - A1
Search/Exam