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The patent EP3911147 was granted to Enza Zaden Beheer on Jul 16, 2025. The application was filed on Dec 9, 2019 under application number EP19880924A. 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 |
|---|---|---|---|
| GAUTIER SEMENCES | Nov 25, 2025 | ICOSA | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | WO2004020594 |
| INTERNATIONAL-SEARCH-REPORT | WO2018219941 |
| OPPOSITION | WO2018219941 |
| OPPOSITION | WO2020147921 |
| OTHER | EP3911147 |
| OTHER | WO2018219941 |
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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Nov 28, 2025
Nov 25, 2025
Nov 25, 2025
Nov 25, 2025
Nov 25, 2025
Nov 25, 2025
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Nov 25, 2025
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Jul 29, 2025
Jun 20, 2025
Decision to grant a European patent
Search/Exam
Jun 5, 2025
Jun 3, 2025
May 27, 2025
Observations by third parties
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May 12, 2025
May 8, 2025
May 2, 2025
Observations by third parties
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May 1, 2025
(Electronic) Receipt
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May 1, 2025
Filing of the translations of the claims
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May 1, 2025
French translation of claims
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May 1, 2025
German translation of the claims
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Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Intention to grant (signatures)
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Apr 10, 2025
Text intended for grant (clean copy)
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Apr 10, 2025
Feb 21, 2025
Feb 18, 2025
Observations by third parties
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Feb 10, 2025
Feb 6, 2025
Observations by third parties
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Feb 4, 2025
(Electronic) Receipt
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Feb 4, 2025
Amended claims with annotations
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Feb 4, 2025
Claims
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Feb 4, 2025
Letter accompanying subsequently filed items
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Feb 4, 2025
Dec 19, 2024
Annex to the communication
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Dec 19, 2024
Communication from the Examining Division
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Nov 26, 2024
Nov 26, 2024
Nov 20, 2024
(Electronic) Receipt
Search/Exam
Nov 20, 2024
Citation filed by a third party
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Nov 20, 2024
Citation filed by a third party
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Nov 20, 2024
Citation filed by a third party
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Nov 20, 2024
Citation filed by a third party
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Nov 20, 2024
Citation filed by a third party
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Nov 20, 2024
Citation filed by a third party
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Nov 20, 2024
Letter accompanying subsequently filed items
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Nov 20, 2024
Non-patent literature filed by a third party
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Nov 20, 2024
Non-patent literature filed by a third party
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Nov 20, 2024
Non-patent literature filed by a third party
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Nov 20, 2024
Non-patent literature filed by a third party
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Nov 20, 2024
Non-patent literature filed by a third party
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Nov 20, 2024
Observations by third parties
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Nov 20, 2024
Patent document filed by a Third party
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Nov 15, 2024
Nov 15, 2024
Nov 15, 2024
Nov 15, 2024
Intention to grant (signatures)
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Nov 15, 2024
Text intended for grant (clean copy)
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Nov 15, 2024
Sep 11, 2024
(Electronic) Receipt
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Sep 11, 2024
Abstract
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Sep 11, 2024
Amended claims with annotations
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Sep 11, 2024
Description
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Sep 11, 2024
Letter accompanying subsequently filed items
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Sep 11, 2024
Aug 28, 2024
Annex to the communication
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Aug 28, 2024
Communication from the Examining Division
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Aug 16, 2024
Jul 30, 2024
Mar 21, 2024
(Electronic) Receipt
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Mar 21, 2024
Amended claims with annotations
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Mar 21, 2024
Claims
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Mar 21, 2024
Letter accompanying subsequently filed items
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Mar 21, 2024
Mar 7, 2024
Annex to the communication
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Mar 7, 2024
Communication from the Examining Division
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Mar 1, 2024
Feb 27, 2024
Non-patent literature filed by a third party
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Feb 27, 2024
Observations by third parties
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Feb 27, 2024
Patent document filed by a Third party
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Jan 25, 2024
(Electronic) Receipt
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Jan 25, 2024
Amended claims with annotations
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Jan 25, 2024
Claims
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Jan 25, 2024
Letter accompanying subsequently filed items
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Jan 25, 2024
Dec 29, 2023
Annexes in respect of a client data request
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Dec 29, 2023
Letter accompanying subsequently filed items
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Dec 29, 2023
Submission concerning representation
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Oct 4, 2023
Annex to the communication
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Oct 4, 2023
Communication from the Examining Division
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Sep 28, 2023
Examination started
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Feb 21, 2022
(Electronic) Receipt
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Feb 21, 2022
Feb 21, 2022
Amendments received before examination
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Feb 21, 2022
Letter accompanying subsequently filed items
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Oct 27, 2021
Sep 17, 2021
Sep 10, 2021
Priority search results copy provided by EPO
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Aug 12, 2021
(Electronic) Receipt
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Aug 12, 2021
Aug 12, 2021
Converted Sequence Listing
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Aug 12, 2021
Request for entry into the European phase
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Aug 2, 2021
May 28, 2021
Information on entry into European phase
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Aug 11, 2020
Jul 27, 2020
Jul 27, 2020
Letter concerning biological material
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Jul 23, 2020
Converted Sequence Listing
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Jul 23, 2020
Copy of the international search report
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Jul 23, 2020
Jul 23, 2020
Published international application - A1
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May 25, 2020
May 16, 2020
May 15, 2020
May 15, 2020
May 14, 2020
May 14, 2020
May 12, 2020
(Electronic) Receipt
PCTRO
May 12, 2020
May 12, 2020
May 12, 2020
May 8, 2020
Jan 22, 2020
(Electronic) Receipt
PCTRO
Jan 22, 2020
Dec 11, 2019
(Electronic) Receipt
PCTRO
Dec 11, 2019
Dec 9, 2019
(Electronic) Receipt
PCTRO
Dec 9, 2019
Abstract
PCTRO
Dec 9, 2019
Claims
PCTRO
Dec 9, 2019
Description
PCTRO
Dec 9, 2019
Dec 9, 2019
Drawings
PCTRO
Dec 9, 2019
Dec 9, 2019
Dec 9, 2019
Dec 9, 2019
Dec 9, 2019