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The patent EP3669843 was granted to Paul Hartmann on Oct 25, 2023. The application was filed on Dec 21, 2018 under application number EP18215471A. 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 |
|---|---|---|---|
| LOHMANN & RAUSCHER | Jul 23, 2024 | HERRMANN | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | GB1280631 |
| DESCRIPTION | WO2014097069 |
| DESCRIPTION | WO9319709 |
| DESCRIPTION | WO9319710 |
| OPPOSITION | EP1985270 |
| OPPOSITION | EP2039328 |
| OPPOSITION | EP3338813 |
| OPPOSITION | GB2379392 |
| OPPOSITION | US2010331785 |
| OPPOSITION | US2013012902 |
| OPPOSITION | US2014350494 |
| OPPOSITION | US2017181897 |
| OPPOSITION | US2018125722 |
| OPPOSITION | US6566577 |
| OPPOSITION | US6903243 |
| OPPOSITION | US8247635 |
| OPPOSITION | WO2014020440 |
| OPPOSITION | WO2014167307 |
| OPPOSITION | WO2016038109 |
| SEARCH | DE102008062824 |
| SEARCH | EP2001424 |
| SEARCH | GB2512841 |
| SEARCH | GB2531344 |
| SEARCH | US9452086 |
| SEARCH | WO2010147533 |
| SEARCH | WO2017196888 |
| SEARCH | WO2018077872 |
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 28, 2023
Decision to grant a European patent
Search/Exam
Sep 20, 2023
(Electronic) Receipt
Search/Exam
Sep 20, 2023
Filing of the translations of the claims
Search/Exam
Sep 20, 2023
French translation of claims
Search/Exam
Sep 20, 2023
German translation of the claims
Search/Exam
Sep 20, 2023
Letter accompanying subsequently filed items
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(Electronic) Receipt
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Jun 30, 2023
Letter accompanying subsequently filed items
Search/Exam
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Intention to grant (signatures)
Search/Exam
May 25, 2023
Text intended for grant (clean copy)
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May 25, 2023
May 5, 2023
Examination started
Search/Exam
Jun 2, 2021
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(Electronic) Receipt
Search/Exam
May 6, 2021
Annexes in respect of a client data request
Search/Exam
May 6, 2021
Letter accompanying subsequently filed items
Search/Exam
May 6, 2021
Apr 20, 2021
Decision to allow further processing
Search/Exam
Apr 12, 2021
(Electronic) Receipt
Search/Exam
Apr 12, 2021
Apr 12, 2021
Amended claims with annotations
Search/Exam
Apr 12, 2021
Letter accompanying subsequently filed items
Search/Exam
Apr 12, 2021
Request for further processing
Search/Exam
Feb 3, 2021
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May 27, 2020
Notification of forthcoming publication
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Jun 24, 2019
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European search opinion
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Jun 24, 2019
European search report
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Jun 24, 2019
Information on Search Strategy
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Jun 4, 2019
Search started
Search/Exam
Feb 13, 2019
Communication to designated inventor
Search/Exam
Feb 13, 2019
Communication to designated inventor
Search/Exam
Dec 21, 2018
Abstract
Search/Exam
Dec 21, 2018
Dec 21, 2018
Claims
Search/Exam
Dec 21, 2018
Description
Search/Exam
Dec 21, 2018
Designation of inventor
Search/Exam
Dec 21, 2018
Drawings
Search/Exam
Dec 21, 2018
Request for grant of a European patent
Search/Exam