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The patent EP3781460 was granted to Eisenmann on Jun 28, 2023. The application was filed on Mar 25, 2019 under application number EP19723008A. 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 |
|---|---|---|---|
| SEW EURODRIVE | Aug 25, 2023 | TUNGLER | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | DE102014009036 |
| INTERNATIONAL-SEARCH-REPORT | FR3036349 |
| INTERNATIONAL-SEARCH-REPORT | US2012146274 |
| INTERNATIONAL-SEARCH-REPORT | US2017369100 |
| OPPOSITION | DE102010052850 |
| OPPOSITION | DE102014009036 |
| OPPOSITION | FR3036349 |
| OPPOSITION | US2012146274 |
| OPPOSITION | US2017369100 |
| OPPOSITION | US2018142488 |
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 22, 2025
Sep 24, 2025
Sep 17, 2025
(Electronic) Receipt
Appeal
Sep 17, 2025
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
Jul 14, 2025
Jul 14, 2025
Notice of appeal
Appeal
Jun 23, 2025
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(Electronic) Receipt
Appeal
Jun 18, 2025
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May 28, 2025
(Electronic) Receipt
Appeal
May 28, 2025
Notice of appeal
Appeal
May 20, 2025
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OPPO
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Decision to grant a European patent
Search/Exam
May 19, 2023
(Electronic) Receipt
Search/Exam
May 19, 2023
English translation of the claims
Search/Exam
May 19, 2023
Filing of the translations of the claims
Search/Exam
May 19, 2023
French translation of claims
Search/Exam
Mar 20, 2023
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Intention to grant (signatures)
Search/Exam
Mar 20, 2023
Text intended for grant (clean copy)
Search/Exam
Mar 20, 2023
Jan 31, 2023
Letter accompanying subsequently filed items
Search/Exam
Jan 31, 2023
Submission concerning representation
Search/Exam
Mar 1, 2022
(Electronic) Receipt
Search/Exam
Mar 1, 2022
Amended claims with annotations
Search/Exam
Mar 1, 2022
Amended description with annotations
Search/Exam
Mar 1, 2022
Claims
Search/Exam
Mar 1, 2022
Description
Search/Exam
Mar 1, 2022
Letter accompanying subsequently filed items
Search/Exam
Mar 1, 2022
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(Electronic) Receipt
Search/Exam
Jan 4, 2022
Letter accompanying subsequently filed items
Search/Exam
Jan 4, 2022
Sep 9, 2021
Sep 6, 2021
Annex to the communication
Search/Exam
Sep 6, 2021
Communication from the Examining Division
Search/Exam
Aug 31, 2021
Examination started
Search/Exam
Aug 23, 2021
Annex
Search/Exam
Aug 23, 2021
Annex
Search/Exam
Aug 23, 2021
Annex
Search/Exam
Aug 23, 2021
Annex
Search/Exam
Aug 23, 2021
Letter accompanying subsequently filed items
Search/Exam
Aug 23, 2021
Letter to the Legal Division
Search/Exam
Aug 2, 2021
Communication from the Legal Division
Search/Exam
Jul 21, 2021
Annexes in respect of a client data request
Search/Exam
Jul 21, 2021
Letter accompanying subsequently filed items
Search/Exam
Jul 21, 2021
Jul 19, 2021
Document concerning representation
Search/Exam
May 25, 2021
(Electronic) Receipt
Search/Exam
May 25, 2021
Letter accompanying subsequently filed items
Search/Exam
May 25, 2021
Reply to Written Opinion prepared by the EPO
Search/Exam
Jan 27, 2021
Nov 26, 2020
Nov 24, 2020
Communication to designated inventor
Search/Exam
Nov 2, 2020
Aug 25, 2020
Information regarding early processing
Search/Exam
Aug 18, 2020
(Electronic) Receipt
Search/Exam
Aug 18, 2020
Priority search results
Search/Exam
Aug 18, 2020
Request for entry into the European phase
Search/Exam
Jun 29, 2020
Jun 29, 2020
Notification of the recording of a change
Search/Exam
Nov 11, 2019
Oct 24, 2019
Copy of the international search report
Search/Exam
Oct 24, 2019
Copy of the international search report
Search/Exam
Oct 24, 2019
Published international application - A1
Search/Exam
Apr 24, 2019
Apr 1, 2019
Mar 25, 2019
(Electronic) Receipt
PCTRO
Mar 25, 2019
Abstract
PCTRO
Mar 25, 2019
Claims
PCTRO
Mar 25, 2019
Description
PCTRO
Mar 25, 2019
Mar 25, 2019
Drawings
PCTRO
Mar 25, 2019