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The patent EP3571676 was granted to HUF Hlsbeck & Frst on Dec 8, 2021. The application was filed on Feb 6, 2018 under application number EP18706212A. 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 |
|---|---|---|---|
| BROSE FAHRZEUGTEILE & KOMMANDITGESELLSCHAFT | Sep 7, 2022 | MAIKOWSKI & NINNEMANN PATENTANWALTE PARTNERSCHAFT MBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | EP1473426 |
| INTERNATIONAL-SEARCH-REPORT | EP2800068 |
| INTERNATIONAL-SEARCH-REPORT | US2003001729 |
| INTERNATIONAL-SEARCH-REPORT | US2016059827 |
| OPPOSITION | DE102016007410 |
| OPPOSITION | DE102016208293 |
| OPPOSITION | EP1473426 |
| OPPOSITION | EP2800068 |
| OPPOSITION | EP3031676 |
| OPPOSITION | US2003001729 |
| OPPOSITION | US2016059827 |
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 23, 2025
(Electronic) Receipt
Appeal
Dec 23, 2025
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(Electronic) Receipt
Appeal
Nov 24, 2025
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(Electronic) Receipt
Appeal
Jul 1, 2025
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May 28, 2025
Oct 15, 2024
Oct 11, 2024
(Electronic) Receipt
Appeal
Oct 11, 2024
Oct 11, 2024
Reply to appeal
Appeal
Jun 14, 2024
Jun 11, 2024
(Electronic) Receipt
Appeal
Jun 11, 2024
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Apr 11, 2024
(Electronic) Receipt
Appeal
Apr 11, 2024
Apr 11, 2024
Notice of appeal
Appeal
Feb 23, 2024
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Means of redress
OPPO
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Dec 21, 2021
Nov 11, 2021
Decision to grant a European patent
Search/Exam
Oct 28, 2021
(Electronic) Receipt
Search/Exam
Oct 28, 2021
English translation of the claims
Search/Exam
Oct 28, 2021
French translation of claims
Search/Exam
Oct 28, 2021
Letter accompanying subsequently filed items
Search/Exam
Sep 28, 2021
Sep 28, 2021
Sep 28, 2021
Intention to grant (signatures)
Search/Exam
Sep 28, 2021
Text intended for grant (clean copy)
Search/Exam
Sep 28, 2021
Jul 1, 2021
Examination started
Search/Exam
Apr 30, 2020
Apr 29, 2020
Feb 3, 2020
(Electronic) Receipt
Search/Exam
Feb 3, 2020
Feb 3, 2020
Amended claims with annotations
Search/Exam
Feb 3, 2020
Amendments received before examination
Search/Exam
Feb 3, 2020
Letter accompanying subsequently filed items
Search/Exam
Nov 11, 2019
Oct 30, 2019
Sep 10, 2019
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Sep 6, 2019
Communication to designated inventor
Search/Exam
Sep 6, 2019
Communication to designated inventor
Search/Exam
Aug 21, 2019
(Electronic) Receipt
Search/Exam
Aug 21, 2019
Request for entry into the European phase
Search/Exam
Nov 20, 2018
Nov 20, 2018
Nov 1, 2018
Copy of the international search report
Search/Exam
Nov 1, 2018
Copy of the international search report
Search/Exam
Nov 1, 2018
Published international application - A1
Search/Exam
Jun 7, 2018
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Mar 6, 2018
Feb 20, 2018
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(Electronic) Receipt
PCTRO
Feb 6, 2018
Abstract
PCTRO
Feb 6, 2018
Claims
PCTRO
Feb 6, 2018
Description
PCTRO
Feb 6, 2018
Feb 6, 2018
Drawings
PCTRO
Feb 6, 2018