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The patent EP3638378 was granted to Weber Hydraulik on Apr 7, 2021. The application was filed on Jun 7, 2018 under application number EP18742897A. 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 |
|---|---|---|---|
| LUKAS HYDRAULIK | Nov 3, 2021 | GLEIM PETRI PATENT UND RECHTSANWALTSPARTNERSCHAFT MBB | WITHDRAWN |
| LUKAS HYDRAULIK | Nov 3, 2021 | STIPPL | WITHDRAWN |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | WO2008032341 |
| INTERNATIONAL-SEARCH-REPORT | WO2016119819 |
| OPPOSITION | DE102007047757 |
| OPPOSITION | DE29514768U |
| OPPOSITION | EP0783395 |
| OPPOSITION | US5272811 |
| OPPOSITION | WO2016119819 |
| OPPOSITION | WO2016166321 |
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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Nov 28, 2025
Nov 28, 2025
Nov 28, 2025
Oct 24, 2025
Oct 24, 2025
Oct 10, 2025
Refund of fees
Appeal
Oct 6, 2025
Oct 2, 2025
Oct 1, 2025
(Electronic) Receipt
Appeal
Oct 1, 2025
Oct 1, 2025
Sep 10, 2025
Apr 14, 2025
(Electronic) Receipt
Appeal
Apr 14, 2025
Apr 14, 2025
Apr 14, 2025
Apr 14, 2025
Mar 24, 2025
Mar 19, 2025
Nov 8, 2024
Jan 5, 2024
Jan 5, 2024
Jan 2, 2024
(Electronic) Receipt
Appeal
Jan 2, 2024
Jan 2, 2024
Nov 27, 2023
Nov 21, 2023
(Electronic) Receipt
Appeal
Nov 21, 2023
Authorisation
Appeal
Nov 21, 2023
Nov 21, 2023
Sep 27, 2023
Sep 22, 2023
(Electronic) Receipt
Appeal
Sep 22, 2023
Sep 22, 2023
Sep 13, 2023
Sep 13, 2023
Sep 1, 2023
(Electronic) Receipt
Appeal
Sep 1, 2023
General authorisation
Appeal
Sep 1, 2023
Sep 1, 2023
Notice of appeal
Appeal
Jul 27, 2023
Jul 24, 2023
Jul 21, 2023
Jul 21, 2023
Jul 21, 2023
Jul 21, 2023
Jul 21, 2023
Jul 21, 2023
Means of redress
OPPO
Jul 21, 2023
Jul 21, 2023
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Jul 21, 2023
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Jun 13, 2023
Apr 18, 2023
Apr 18, 2023
Apr 13, 2023
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Apr 13, 2023
Apr 13, 2023
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Apr 13, 2023
Apr 13, 2023
Authorisation
OPPO
Apr 13, 2023
Apr 13, 2023
Apr 13, 2023
Apr 13, 2023
Apr 13, 2023
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Apr 5, 2023
Mar 31, 2023
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Oct 7, 2022
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Jul 20, 2022
Jul 14, 2022
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Jun 2, 2022
May 30, 2022
May 30, 2022
May 30, 2022
Authorisation
OPPO
May 30, 2022
May 30, 2022
May 30, 2022
Description
OPPO
May 30, 2022
May 30, 2022
Jan 19, 2022
Jan 19, 2022
Jan 19, 2022
Jan 14, 2022
Jan 14, 2022
Jan 14, 2022
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Nov 9, 2021
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Nov 3, 2021
Nov 3, 2021
Nov 3, 2021
Nov 3, 2021
Nov 3, 2021
Nov 3, 2021
Nov 3, 2021
Nov 3, 2021
Apr 20, 2021
Mar 12, 2021
Decision to grant a European patent
Search/Exam
Feb 25, 2021
Change to the inventor details
Search/Exam
Feb 25, 2021
Feb 22, 2021
(Electronic) Receipt
Search/Exam
Feb 22, 2021
Annexes in respect of a client data request
Search/Exam
Feb 22, 2021
English translation of the claims
Search/Exam
Feb 22, 2021
Filing of the translations of the claims
Search/Exam
Feb 22, 2021
French translation of claims
Search/Exam
Feb 22, 2021
Letter accompanying subsequently filed items
Search/Exam
Dec 9, 2020
Dec 9, 2020
Dec 9, 2020
Intention to grant (signatures)
Search/Exam
Dec 9, 2020
Text intended for grant (clean copy)
Search/Exam
Dec 9, 2020
Nov 9, 2020
Examination started
Search/Exam
Mar 25, 2020
Jan 24, 2020
Jan 17, 2020
Communication to designated inventor
Search/Exam
Jan 17, 2020
Communication to designated inventor
Search/Exam
Jan 10, 2020
(Electronic) Receipt
Search/Exam
Jan 10, 2020
Request for entry into the European phase
Search/Exam
Jan 3, 2020
Oct 25, 2019
Information on entry into European phase
Search/Exam
May 22, 2019
May 22, 2019
May 22, 2019
May 22, 2019
May 17, 2019
Notification of election of EPO
Search/Exam
May 3, 2019
Apr 18, 2019
Apr 11, 2019
Apr 11, 2019
PCT demand form
PCT2
Apr 11, 2019
Apr 11, 2019
Jan 11, 2019
Dec 20, 2018
Copy of the international search report
Search/Exam
Dec 20, 2018
Copy of the international search report
Search/Exam
Dec 20, 2018
Published international application - A1
Search/Exam
Nov 6, 2018
ISR: cited documents
PCTISA
Nov 6, 2018
Nov 2, 2018
Nov 2, 2018
Nov 2, 2018
Aug 6, 2018
Jul 14, 2018
Abstract
PCTISA
Jul 14, 2018
Claims
PCTISA
Jul 14, 2018
Description
PCTISA
Jul 14, 2018
Drawings
PCTISA
Jul 14, 2018