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The patent EP3183459 was granted to EBM Papst Mulfingen on Aug 2, 2023. The application was filed on Aug 13, 2015 under application number EP15757450A. The patent is currently recorded with a legal status of "Opposition Rejected".

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 | Apr 30, 2024 | 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 |
|---|---|
| EXAMINATION | US7166940 |
| INTERNATIONAL-SEARCH-REPORT | DE69024820T |
| INTERNATIONAL-SEARCH-REPORT | DE69105703T |
| INTERNATIONAL-SEARCH-REPORT | FR2728028 |
| INTERNATIONAL-SEARCH-REPORT | WO2008143603 |
| INTERNATIONAL-SEARCH-REPORT | WO2012084725 |
| OPPOSITION | DE69024820T |
| OPPOSITION | DE69105703T |
| OPPOSITION | EP0143235 |
| OPPOSITION | FR2728028 |
| OPPOSITION | US4657483 |
| OPPOSITION | US5215438 |
| OPPOSITION | US6045327 |
| OPPOSITION | US7166940 |
| OPPOSITION | US7839038 |
| OPPOSITION | US8622695 |
| OPPOSITION | WO2008143603 |
| OPPOSITION | WO2012084725 |
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 4, 2025
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Means of redress
OPPO
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Aug 16, 2023
Jul 6, 2023
Decision to grant a European patent
Search/Exam
Jun 27, 2023
(Electronic) Receipt
Search/Exam
Jun 27, 2023
English translation of the claims
Search/Exam
Jun 27, 2023
Filing of the translations of the claims
Search/Exam
Jun 27, 2023
French translation of claims
Search/Exam
Jun 27, 2023
Letter accompanying subsequently filed items
Search/Exam
Jun 27, 2023
Letter concerning fees and payments
Search/Exam
Feb 28, 2023
Feb 28, 2023
Feb 28, 2023
Feb 28, 2023
Intention to grant (signatures)
Search/Exam
Feb 28, 2023
Text intended for grant (clean copy)
Search/Exam
Feb 28, 2023
Mar 1, 2022
(Electronic) Receipt
Search/Exam
Mar 1, 2022
Letter accompanying subsequently filed items
Search/Exam
Mar 1, 2022
Feb 2, 2022
Annex to the communication
Search/Exam
Feb 2, 2022
Communication from the Examining Division
Search/Exam
Jul 7, 2021
Amended claims with annotations
Search/Exam
Jul 7, 2021
Amended claims with annotations
Search/Exam
Jul 7, 2021
Amended description with annotations
Search/Exam
Jul 7, 2021
Claims
Search/Exam
Jul 7, 2021
Claims
Search/Exam
Jul 7, 2021
Description
Search/Exam
Jul 7, 2021
Apr 1, 2021
Annex to the communication
Search/Exam
Apr 1, 2021
Communication from the Examining Division
Search/Exam
Mar 26, 2021
Examination started
Search/Exam
Jul 10, 2018
Jun 13, 2018
Nov 21, 2017
Priority search results
Search/Exam
Nov 21, 2017
Nov 9, 2017
May 31, 2017
May 23, 2017
Apr 26, 2017
Letter which had not been notified
Search/Exam
Mar 24, 2017
Mar 22, 2017
Communication to designated inventor
Search/Exam
Mar 22, 2017
Communication to designated inventor
Search/Exam
Mar 22, 2017
Communication to designated inventor
Search/Exam
Mar 22, 2017
Communication to designated inventor
Search/Exam
Mar 22, 2017
Communication to designated inventor
Search/Exam
Mar 22, 2017
Communication to designated inventor
Search/Exam
Mar 22, 2017
Communication to designated inventor
Search/Exam
Mar 7, 2017
Dec 7, 2016
Information regarding early processing
Search/Exam
Oct 28, 2016
(Electronic) Receipt
Search/Exam
Oct 28, 2016
Oct 28, 2016
Amended claims with annotations
Search/Exam
Oct 28, 2016
Request for entry into the European phase
Search/Exam
Mar 15, 2016
Feb 25, 2016
Copy of the international search report
Search/Exam
Feb 25, 2016
Copy of the international search report
Search/Exam
Feb 25, 2016
Published international application - A1
Search/Exam
Nov 13, 2015
ISR: cited documents
PCTISA
Nov 13, 2015
Nov 12, 2015
Nov 12, 2015
Nov 12, 2015
Oct 2, 2015
Sep 15, 2015
Sep 14, 2015
Sep 9, 2015
Aug 13, 2015
(Electronic) Receipt
PCTRO
Aug 13, 2015
Abstract
PCTRO
Aug 13, 2015
Claims
PCTRO
Aug 13, 2015
Description
PCTRO
Aug 13, 2015
Aug 13, 2015
Drawings
PCTRO
Aug 13, 2015