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The patent EP3505830 was granted to Bruckbauer on Mar 24, 2021. The application was filed on Dec 18, 2018 under application number EP18213259A. 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 |
|---|---|---|---|
| BERBEL ABLUFTTECHNIK | Dec 22, 2021 | SCHNEIDERS & BEHRENDT BOCHUM | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | CN108253481 |
| OPPOSITION | DE102013007722 |
| OPPOSITION | DE102017223828 |
| OPPOSITION | EP1296096 |
| OPPOSITION | EP2702329 |
| OPPOSITION | JPH11108408 |
| OPPOSITION | US2012111197 |
| OPPOSITION | US2013199142 |
| OPPOSITION | US2014290641 |
| OPPOSITION | US2016296870 |
| OPPOSITION | WO2017089925 |
| OPPOSITION | WO2017220707 |
| SEARCH | DE102011082924 |
| SEARCH | DE102016109136 |
| SEARCH | US4846146 |
| SEARCH | US4962694 |
| SEARCH | WO2017089925 |
| SEARCH | WO2019038632 |
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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Authorisation
OPPO
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Apr 6, 2021
Feb 25, 2021
Decision to grant a European patent
Search/Exam
Feb 11, 2021
(Electronic) Receipt
Search/Exam
Feb 11, 2021
English translation of the claims
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Feb 11, 2021
Filing of the translations of the claims
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Feb 11, 2021
French translation of claims
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Feb 11, 2021
Letter accompanying subsequently filed items
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Oct 23, 2020
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Intention to grant (signatures)
Search/Exam
Oct 23, 2020
Text intended for grant (clean copy)
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Oct 23, 2020
Sep 18, 2020
Examination started
Search/Exam
Dec 17, 2019
(Electronic) Receipt
Search/Exam
Dec 17, 2019
Dec 17, 2019
Amended claims with annotations
Search/Exam
Dec 17, 2019
Dec 17, 2019
Amended description with annotations
Search/Exam
Dec 17, 2019
Amendments received before examination
Search/Exam
Dec 17, 2019
Letter accompanying subsequently filed items
Search/Exam
Jul 8, 2019
Jun 5, 2019
Notification of forthcoming publication
Search/Exam
May 8, 2019
May 8, 2019
European search opinion
Search/Exam
May 8, 2019
European search report
Search/Exam
May 8, 2019
Information on Search Strategy
Search/Exam
Apr 29, 2019
Search started
Search/Exam
Feb 8, 2019
Communication to designated inventor
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Feb 8, 2019
Communication to designated inventor
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Communication to designated inventor
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Feb 8, 2019
Communication to designated inventor
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Communication to designated inventor
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Feb 8, 2019
Communication to designated inventor
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Dec 20, 2018
Letter concerning the priority
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Dec 20, 2018
Priority document
Search/Exam
Dec 18, 2018
Abstract
Search/Exam
Dec 18, 2018
Dec 18, 2018
Claims
Search/Exam
Dec 18, 2018
Description
Search/Exam
Dec 18, 2018
Designation of inventor
Search/Exam
Dec 18, 2018
Drawings
Search/Exam
Dec 18, 2018
Priority search results
Search/Exam
Dec 18, 2018
Request for grant of a European patent
Search/Exam