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The patent EP3636825 was granted to Herbert Kannegiesser on Mar 24, 2021. The application was filed on Sep 15, 2017 under application number EP19213404A. 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 |
|---|---|---|---|
| JENSEN DENMARK | Dec 23, 2021 | ZACCO | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | EP2006438 |
| OPPOSITION | DE19504948 |
| OPPOSITION | DE4202380 |
| OPPOSITION | DE4442232 |
| OPPOSITION | DE60120869T |
| OPPOSITION | DE69516894T |
| OPPOSITION | EP0068672 |
| OPPOSITION | EP0794279 |
| OPPOSITION | JPH1024200 |
| OPPOSITION | WO2005038121 |
| OPPOSITION | WO2012163356 |
| SEARCH | DE102008021810 |
| SEARCH | DE1610297 |
| SEARCH | DE19504948 |
| SEARCH | DE69516894T |
| SEARCH | JPH1024200 |
| SEARCH | US3911604 |
| SEARCH | WO2005038121 |
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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Dec 15, 2025
Dec 15, 2025
Dec 15, 2025
Nov 11, 2025
Nov 11, 2025
Nov 11, 2025
Oct 14, 2025
Oct 6, 2025
(Electronic) Receipt
Appeal
Oct 6, 2025
Oct 6, 2025
Sep 22, 2025
(Electronic) Receipt
Appeal
Sep 22, 2025
Sep 22, 2025
Sep 22, 2025
Sep 22, 2025
Sep 17, 2025
(Electronic) Receipt
Appeal
Sep 17, 2025
Sep 17, 2025
Sep 10, 2025
Sep 10, 2025
Sep 10, 2025
Sep 5, 2025
(Electronic) Receipt
Appeal
Sep 5, 2025
Sep 5, 2025
Sep 5, 2025
Sep 5, 2025
Sep 3, 2025
Sep 3, 2025
Jul 4, 2025
Jul 4, 2025
Jul 3, 2025
Jul 1, 2025
Jul 1, 2025
Jun 26, 2025
(Electronic) Receipt
Appeal
Jun 26, 2025
(Electronic) Receipt
Appeal
Jun 26, 2025
Jun 26, 2025
Jun 26, 2025
Jun 26, 2025
Jun 3, 2025
Jun 3, 2025
May 28, 2025
Aug 30, 2024
Aug 26, 2024
(Electronic) Receipt
Appeal
Aug 26, 2024
Aug 26, 2024
Jul 3, 2024
Jun 24, 2024
Jun 18, 2024
Letter accompanying subsequently filed items
Search/Exam
Jun 18, 2024
Jun 17, 2024
Jun 17, 2024
Jun 12, 2024
Mar 7, 2024
Mar 4, 2024
(Electronic) Receipt
Appeal
Mar 4, 2024
Mar 4, 2024
Mar 4, 2024
Mar 4, 2024
Mar 4, 2024
Mar 4, 2024
Mar 4, 2024
Mar 4, 2024
Mar 4, 2024
Mar 4, 2024
Reply to appeal
Appeal
Feb 8, 2024
Dec 19, 2023
Dec 18, 2023
Dec 13, 2023
Dec 13, 2023
Nov 6, 2023
Oct 31, 2023
(Electronic) Receipt
Appeal
Oct 31, 2023
Oct 31, 2023
Aug 31, 2023
Aug 31, 2023
Aug 24, 2023
(Electronic) Receipt
Appeal
Aug 24, 2023
Aug 24, 2023
Notice of appeal
Appeal
Jun 22, 2023
Jun 21, 2023
Jun 21, 2023
Jun 21, 2023
Jun 21, 2023
Jun 21, 2023
Jun 21, 2023
Means of redress
OPPO
Jun 21, 2023
Jun 21, 2023
Jun 21, 2023
Jun 21, 2023
Jun 21, 2023
Jun 21, 2023
May 12, 2023
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Nov 15, 2022
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Nov 8, 2022
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Jan 7, 2022
Jan 7, 2022
Dec 23, 2021
Dec 23, 2021
Dec 23, 2021
Dec 23, 2021
Dec 23, 2021
Apr 6, 2021
Feb 25, 2021
Decision to grant a European patent
Search/Exam
Feb 11, 2021
English translation of the claims
Search/Exam
Feb 11, 2021
Filing of the translations of the claims
Search/Exam
Feb 11, 2021
French translation of claims
Search/Exam
Oct 6, 2020
Oct 6, 2020
Oct 6, 2020
Oct 6, 2020
Intention to grant (signatures)
Search/Exam
Oct 6, 2020
Text intended for grant (clean copy)
Search/Exam
Oct 6, 2020
Sep 3, 2020
Examination started
Search/Exam
Aug 3, 2020
Letter concerning fees and payments
Search/Exam
Jun 29, 2020
Jun 29, 2020
Jun 29, 2020
Amended claims with annotations
Search/Exam
Jun 29, 2020
Amended claims with annotations
Search/Exam
Jun 29, 2020
Jun 29, 2020
Jun 29, 2020
Amendments received before examination
Search/Exam
Jun 25, 2020
Jun 25, 2020
Jun 25, 2020
Amended claims with annotations
Search/Exam
Jun 25, 2020
Amended claims with annotations
Search/Exam
Jun 25, 2020
Jun 25, 2020
Jun 25, 2020
Amendments received before examination
Search/Exam
Apr 20, 2020
Mar 18, 2020
Notification of forthcoming publication
Search/Exam
Jan 27, 2020
Communication to designated inventor
Search/Exam
Jan 27, 2020
Communication to designated inventor
Search/Exam
Jan 27, 2020
Communication to designated inventor
Search/Exam
Jan 27, 2020
Communication to designated inventor
Search/Exam
Jan 7, 2020
Refund of fees
Search/Exam
Jan 2, 2020
Jan 2, 2020
European search opinion
Search/Exam
Jan 2, 2020
European search report
Search/Exam
Jan 2, 2020
Information on Search Strategy
Search/Exam
Dec 11, 2019
Dec 4, 2019
Abstract
Search/Exam
Dec 4, 2019
Dec 4, 2019
Claims
Search/Exam
Dec 4, 2019
Description
Search/Exam
Dec 4, 2019
Designation of inventor
Search/Exam
Dec 4, 2019
Drawings
Search/Exam
Dec 4, 2019
Request for grant of a European patent
Search/Exam
Apr 23, 2018