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The patent EP3771320 was granted to Amazonen Werke H Dreyer on Nov 30, 2022. The application was filed on Jul 16, 2020 under application number EP20401041A. 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 |
|---|---|---|---|
| KVERNELAND GROUP NIEUW VENNEP | Aug 29, 2023 | BITTNER | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE102016225773 |
| OPPOSITION | DE102005030781 |
| OPPOSITION | DE102016225773 |
| OPPOSITION | EP0385236 |
| OPPOSITION | EP3241420 |
| OPPOSITION | EP3300570 |
| OPPOSITION | EP3501247 |
| OPPOSITION | FR2700507 |
| SEARCH | DE102016225773 |
| SEARCH | EP2524584 |
| SEARCH | EP3300570 |
| SEARCH | EP3501247 |
| SEARCH | GB2324377 |
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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Oct 7, 2025
Oct 1, 2025
(Electronic) Receipt
Appeal
Oct 1, 2025
Oct 1, 2025
Reply to appeal
Appeal
Jun 6, 2025
Jun 3, 2025
(Electronic) Receipt
Appeal
Jun 3, 2025
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Apr 2, 2025
(Electronic) Receipt
Appeal
Apr 2, 2025
Notice of appeal
Appeal
Feb 3, 2025
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Means of redress
OPPO
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Dec 13, 2022
Nov 4, 2022
Decision to grant a European patent
Search/Exam
Oct 20, 2022
(Electronic) Receipt
Search/Exam
Oct 20, 2022
English translation of the claims
Search/Exam
Oct 20, 2022
Filing of the translations of the claims
Search/Exam
Oct 20, 2022
French translation of claims
Search/Exam
Jun 24, 2022
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Intention to grant (signatures)
Search/Exam
Jun 24, 2022
Text intended for grant (clean copy)
Search/Exam
Jun 24, 2022
May 13, 2022
Examination started
Search/Exam
Aug 2, 2021
(Electronic) Receipt
Search/Exam
Aug 2, 2021
Aug 2, 2021
Amended claims with annotations
Search/Exam
Aug 2, 2021
Aug 2, 2021
Amended description with annotations
Search/Exam
Aug 2, 2021
Amendments received before examination
Search/Exam
Aug 2, 2021
Letter accompanying subsequently filed items
Search/Exam
Apr 8, 2021
Mar 30, 2021
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Mar 24, 2021
Annexes in respect of a client data request
Search/Exam
Mar 15, 2021
Feb 8, 2021
Jan 13, 2021
Notification of forthcoming publication
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Nov 18, 2020
Nov 18, 2020
European search opinion
Search/Exam
Nov 18, 2020
European search report
Search/Exam
Nov 18, 2020
Information on Search Strategy
Search/Exam
Nov 5, 2020
Search started
Search/Exam
Sep 8, 2020
Communication to designated inventor
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Sep 8, 2020
Communication to designated inventor
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Sep 8, 2020
Communication to designated inventor
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Sep 8, 2020
Communication to designated inventor
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Aug 14, 2020
Aug 6, 2020
Letter concerning the priority
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Aug 6, 2020
Priority document
Search/Exam
Jul 16, 2020
Abstract
Search/Exam
Jul 16, 2020
Jul 16, 2020
Claims
Search/Exam
Jul 16, 2020
Description
Search/Exam
Jul 16, 2020
Designation of inventor
Search/Exam
Jul 16, 2020
Drawings
Search/Exam
Jul 16, 2020
Priority search results
Search/Exam
Jul 16, 2020
Request for grant of a European patent
Search/Exam