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The patent EP3957884 was granted to GEM Gebr Mller Apparatebau Kommanditgesellschaft on Apr 10, 2024. The application was filed on Aug 19, 2021 under application number EP21192204A. 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 |
|---|---|---|---|
| GEORG FISCHER ROHRLEITUNGSSYSTEME | Dec 23, 2024 | DIETZ | ADMISSIBLE |
| GEORG FISCHER ROHRLEITUNGSSYSTEME | Dec 23, 2024 | GLEISS GROSSE SCHRELL UND PARTNER | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE102018213002 |
| EXAMINATION | DE102015210208 |
| OPPOSITION | DE102015210210 |
| OPPOSITION | DE102018213002 |
| OPPOSITION | EP3415759 |
| OPPOSITION | JP2001295925 |
| OPPOSITION | KR20200008509 |
| OPPOSITION | US2003001590 |
| OPPOSITION | US2005092079 |
| OPPOSITION | US2016123497 |
| OPPOSITION | US2018163896 |
| OPPOSITION | US2018224346 |
| OPPOSITION | US2021239554 |
| OPPOSITION | WO2008106264 |
| OPPOSITION | WO2010136183 |
| OPPOSITION | WO2012035291 |
| OPPOSITION | WO2014188717 |
| SEARCH | DE102018213002 |
| SEARCH | US2018224346 |
| SEARCH | WO2012035291 |
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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General enquiry
OPPO
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Mar 14, 2024
Decision to grant a European patent
Search/Exam
Mar 7, 2024
Mar 4, 2024
(Electronic) Receipt
Search/Exam
Mar 4, 2024
English translation of the claims
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Mar 4, 2024
Filing of the translations of the claims
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Mar 4, 2024
French translation of claims
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Mar 4, 2024
Letter accompanying subsequently filed items
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Nov 17, 2023
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Intention to grant (signatures)
Search/Exam
Nov 17, 2023
Text intended for grant (clean copy)
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Nov 17, 2023
Jun 20, 2023
(Electronic) Receipt
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Jun 20, 2023
Amended claims with annotations
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Jun 20, 2023
Amended description with annotations
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Jun 20, 2023
Claims
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Jun 20, 2023
Description
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Jun 20, 2023
Letter accompanying subsequently filed items
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Jun 20, 2023
May 25, 2023
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(Electronic) Receipt
Search/Exam
May 19, 2023
Letter accompanying subsequently filed items
Search/Exam
May 19, 2023
Jan 13, 2023
Annex to the communication
Search/Exam
Jan 13, 2023
Communication from the Examining Division
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Jan 9, 2023
Examination started
Search/Exam
Sep 7, 2022
(Electronic) Receipt
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Sep 7, 2022
Letter accompanying subsequently filed items
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Sep 7, 2022
Priority search results
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Sep 7, 2022
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(Electronic) Receipt
Search/Exam
Aug 22, 2022
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Amended claims with annotations
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Aug 22, 2022
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Amended description with annotations
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Aug 22, 2022
Amendments received before examination
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Aug 22, 2022
Letter accompanying subsequently filed items
Search/Exam
Feb 28, 2022
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Notification of forthcoming publication
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Jan 17, 2022
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European search opinion
Search/Exam
Jan 17, 2022
European search report
Search/Exam
Jan 17, 2022
Information on Search Strategy
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Jan 5, 2022
Search started
Search/Exam
Sep 6, 2021
Letter concerning the priority
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Sep 6, 2021
Priority document
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Aug 19, 2021
Abstract
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Aug 19, 2021
Aug 19, 2021
Claims
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Aug 19, 2021
Description
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Aug 19, 2021
Designation of inventor
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Aug 19, 2021
Drawings
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Aug 19, 2021
Request for grant of a European patent
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