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The patent EP3494237 was granted to Tannow on Sep 3, 2025. The application was filed on Aug 3, 2017 under application number EP17761132A. 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 |
|---|---|---|---|
| WET GREEN | Jan 14, 2022 | DOMPATENT VON KREISLER SELTING WERNER | ADMISSIBLE |
| WET GREEN | Jan 14, 2022 | DOMPATENT VON PATENT UND RECHTSANWALTEN | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | GR20020100071 |
| INTERNATIONAL-SEARCH-REPORT | US2010275380 |
| INTERNATIONAL-SEARCH-REPORT | WO2015173705 |
| OPPOSITION | GR20020100071 |
| OPPOSITION | US2010275380 |
| OPPOSITION | WO2009065915 |
| OPPOSITION | WO2015173705 |
| OPPOSITION | WO2018025210 |
| OTHER | US2010275380 |
| OTHER | WO2009065915 |
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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Aug 7, 2025
Aug 7, 2025
Jul 24, 2025
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Refund of fees
Appeal
May 5, 2025
May 5, 2025
May 2, 2025
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Apr 30, 2025
Apr 28, 2025
(Electronic) Receipt
Appeal
Apr 28, 2025
Apr 28, 2025
Apr 28, 2025
Withdrawal of an appeal
Appeal
Mar 28, 2025
Mar 28, 2025
Oct 7, 2024
Oct 7, 2024
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Oct 2, 2024
(Electronic) Receipt
Appeal
Oct 2, 2024
Oct 2, 2024
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Oct 1, 2024
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Sep 30, 2024
Sep 27, 2024
(Electronic) Receipt
Appeal
Sep 27, 2024
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Mar 5, 2024
Mar 5, 2024
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Feb 29, 2024
(Electronic) Receipt
Appeal
Feb 29, 2024
(Electronic) Receipt
Appeal
Feb 29, 2024
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Authorisation
Appeal
Feb 29, 2024
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Reply to appeal
Appeal
Feb 29, 2024
Oct 19, 2023
Oct 16, 2023
(Electronic) Receipt
Appeal
Oct 16, 2023
Oct 16, 2023
Oct 16, 2023
Oct 16, 2023
Oct 16, 2023
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Aug 18, 2023
Aug 14, 2023
(Electronic) Receipt
Appeal
Aug 14, 2023
Aug 14, 2023
Notice of appeal
Appeal
Jun 5, 2023
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Means of redress
OPPO
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Apr 28, 2021
Mar 18, 2021
Decision to grant a European patent
Search/Exam
Mar 5, 2021
(Electronic) Receipt
Search/Exam
Mar 5, 2021
Filing of the translations of the claims
Search/Exam
Mar 5, 2021
French translation of claims
Search/Exam
Mar 5, 2021
German translation of the claims
Search/Exam
Nov 11, 2020
Nov 11, 2020
Nov 11, 2020
Intention to grant (signatures)
Search/Exam
Nov 11, 2020
Text intended for grant (clean copy)
Search/Exam
Nov 11, 2020
Jul 23, 2020
(Electronic) Receipt
Search/Exam
Jul 23, 2020
Letter accompanying subsequently filed items
Search/Exam
Jul 23, 2020
Jul 15, 2020
Annex to the communication
Search/Exam
Jul 15, 2020
Communication from the Examining Division
Search/Exam
May 20, 2020
Document concerning representation
Search/Exam
Apr 23, 2020
(Electronic) Receipt
Search/Exam
Apr 23, 2020
Amended claims with annotations
Search/Exam
Apr 23, 2020
Amended description with annotations
Search/Exam
Apr 23, 2020
Claims
Search/Exam
Apr 23, 2020
Description
Search/Exam
Apr 23, 2020
Letter accompanying subsequently filed items
Search/Exam
Apr 23, 2020
Mar 27, 2020
Mar 27, 2020
Mar 24, 2020
(Electronic) Receipt
Search/Exam
Mar 24, 2020
Letter accompanying subsequently filed items
Search/Exam
Mar 24, 2020
Non-patent literature filed by a third party
Search/Exam
Mar 24, 2020
Non-patent literature filed by a third party
Search/Exam
Mar 24, 2020
Non-patent literature filed by a third party
Search/Exam
Mar 24, 2020
Non-patent literature filed by a third party
Search/Exam
Mar 24, 2020
Non-patent literature filed by a third party
Search/Exam
Mar 24, 2020
Observations by third parties
Search/Exam
Mar 24, 2020
Patent document filed by a Third party
Search/Exam
Mar 24, 2020
Patent document filed by a Third party
Search/Exam
Dec 17, 2019
Annex to the communication
Search/Exam
Dec 17, 2019
Communication from the Examining Division
Search/Exam
Dec 11, 2019
Examination started
Search/Exam
Nov 22, 2019
Nov 4, 2019
Claim deemed abandoned
Search/Exam
Oct 24, 2019
Claim deemed abandoned
Search/Exam
Sep 24, 2019
(Electronic) Receipt
Search/Exam
Sep 24, 2019
Sep 24, 2019
Amended claims with annotations
Search/Exam
Sep 24, 2019
Sep 24, 2019
Amended description with annotations
Search/Exam
Sep 24, 2019
Amendments received before examination
Search/Exam
Sep 24, 2019
Letter accompanying subsequently filed items
Search/Exam
May 15, 2019
Mar 15, 2019
Mar 13, 2019
Communication to designated inventor
Search/Exam
Mar 13, 2019
Communication to designated inventor
Search/Exam
Mar 13, 2019
Communication to designated inventor
Search/Exam
Feb 28, 2019
(Electronic) Receipt
Search/Exam
Feb 28, 2019
Request for entry into the European phase
Search/Exam
Feb 27, 2019
Dec 12, 2018
Information on entry into European phase
Search/Exam
Mar 1, 2018
Feb 8, 2018
Copy of the international search report
Search/Exam
Feb 8, 2018
Published international application - A1
Search/Exam
Nov 16, 2017
ISR: cited documents
PCTISA
Nov 15, 2017
Nov 15, 2017
Nov 15, 2017
Sep 14, 2017
Sep 5, 2017
Abstract
PCTISA
Sep 5, 2017
Claims
PCTISA
Sep 5, 2017
Description
PCTISA
Sep 5, 2017
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