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The patent EP3312427 was granted to EBM Papst Mulfingen on Oct 1, 2025. The application was filed on Sep 4, 2017 under application number EP17189145A. 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 |
|---|---|---|---|
| ZIEHL ABEGG | May 15, 2023 | ULLRICH & NAUMANN PARTG MBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | CH219997 |
| OPPOSITION | DE102012109542 |
| OPPOSITION | DE10330088 |
| OPPOSITION | DE202011004708U |
| OPPOSITION | DE4404262 |
| OPPOSITION | EP1735568 |
| OPPOSITION | EP1934484 |
| OPPOSITION | EP2541068 |
| OPPOSITION | GB766216 |
| OPPOSITION | US2005186070 |
| OPPOSITION | US2006067816 |
| OPPOSITION | US2014086730 |
| OPPOSITION | US3536414 |
| OPPOSITION | US7478993 |
| OPPOSITION | US7484925 |
| OPPOSITION | WO2011151323 |
| SEARCH | DE10330088 |
| SEARCH | US2006067816 |
| SEARCH | WO2011151323 |
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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Sep 4, 2025
Sep 4, 2025
Aug 26, 2025
Aug 26, 2025
Aug 26, 2025
Aug 26, 2025
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Jun 27, 2025
Jun 27, 2025
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May 22, 2025
May 21, 2025
Refund of fees
Appeal
May 20, 2025
May 20, 2025
May 15, 2025
(Electronic) Receipt
Appeal
May 15, 2025
May 15, 2025
May 15, 2025
Withdrawal of an appeal
Appeal
Mar 31, 2025
Mar 31, 2025
Mar 24, 2025
(Electronic) Receipt
Appeal
Mar 24, 2025
Mar 24, 2025
Notice of appeal
Appeal
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
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Means of redress
OPPO
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Aug 30, 2022
Jul 21, 2022
Decision to grant a European patent
Search/Exam
Jul 6, 2022
English translation of the claims
Search/Exam
Jul 6, 2022
Filing of the translations of the claims
Search/Exam
Jul 6, 2022
French translation of claims
Search/Exam
Jul 6, 2022
Letter concerning fees and payments
Search/Exam
Apr 6, 2022
Apr 6, 2022
Apr 6, 2022
Intention to grant (signatures)
Search/Exam
Apr 6, 2022
Text intended for grant (clean copy)
Search/Exam
Apr 6, 2022
Jul 6, 2020
Mar 31, 2020
Annex to the communication
Search/Exam
Mar 31, 2020
Communication from the Examining Division
Search/Exam
Mar 25, 2020
Examination started
Search/Exam
Jan 8, 2020
Aug 13, 2018
Aug 13, 2018
Amended claims with annotations
Search/Exam
Aug 13, 2018
Aug 13, 2018
Amended description with annotations
Search/Exam
Aug 13, 2018
Amendments received before examination
Search/Exam
Aug 13, 2018
Letter concerning fees and payments
Search/Exam
Jul 10, 2018
Jun 13, 2018
May 2, 2018
Mar 28, 2018
Notification of forthcoming publication
Search/Exam
Mar 12, 2018
Mar 12, 2018
European search opinion
Search/Exam
Mar 12, 2018
European search report
Search/Exam
Mar 12, 2018
Information on Search Strategy
Search/Exam
Mar 2, 2018
Search started
Search/Exam
Oct 27, 2017
Communication to designated inventor
Search/Exam
Oct 27, 2017
Communication to designated inventor
Search/Exam
Oct 27, 2017
Communication to designated inventor
Search/Exam
Oct 27, 2017
Communication to designated inventor
Search/Exam
Oct 2, 2017
Letter concerning the priority
Search/Exam
Oct 2, 2017
Priority document
Search/Exam
Sep 4, 2017
Abstract
Search/Exam
Sep 4, 2017
Sep 4, 2017
Claims
Search/Exam
Sep 4, 2017
Description
Search/Exam
Sep 4, 2017
Designation of inventor
Search/Exam
Sep 4, 2017
Drawings
Search/Exam
Sep 4, 2017
Priority search results
Search/Exam
Sep 4, 2017
Request for grant of a European patent
Search/Exam