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The patent EP3475585 was granted to Hydac Systems & Services on Aug 19, 2020. The application was filed on Jun 16, 2017 under application number EP17732747A. The patent is currently recorded with a legal status of "Revoked".

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 |
|---|---|---|---|
| HAWE HYDRAULIK | Apr 20, 2021 | GROSSE SCHUMACHER KNAUER VON HIRSCHHAUSEN | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE102014003086 |
| INTERNATIONAL-SEARCH-REPORT | DE102013014671 |
| INTERNATIONAL-SEARCH-REPORT | DE102014003086 |
| OPPOSITION | DE102004003893 |
| OPPOSITION | DE102013014671 |
| OPPOSITION | DE102014003086 |
| OPPOSITION | DE1090044 |
| OPPOSITION | DE1955659 |
| OPPOSITION | DE1956621 |
| OPPOSITION | DE19851553 |
| OPPOSITION | DE2200568 |
| OPPOSITION | DE2248891 |
| OPPOSITION | DE4040523 |
| OPPOSITION | DE60304663T |
| OPPOSITION | DE6600855U |
| OPPOSITION | US2016201695 |
| OPPOSITION | WO2015032492 |
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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Jun 12, 2025
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
Apr 2, 2024
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Reply to appeal
Appeal
Mar 28, 2024
Dec 5, 2023
Nov 29, 2023
(Electronic) Receipt
Appeal
Nov 29, 2023
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Oct 27, 2023
(Electronic) Receipt
Appeal
Oct 27, 2023
Oct 27, 2023
Notice of appeal
Appeal
Sep 4, 2023
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Aug 28, 2023
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Means of redress
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Information concerning oral proceedings
Search/Exam
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Aug 31, 2020
Jul 23, 2020
Decision to grant a European patent
Search/Exam
Jul 7, 2020
(Electronic) Receipt
Search/Exam
Jul 7, 2020
English translation of the claims
Search/Exam
Jul 7, 2020
French translation of claims
Search/Exam
Jul 7, 2020
Letter accompanying subsequently filed items
Search/Exam
May 11, 2020
May 11, 2020
May 11, 2020
Intention to grant (signatures)
Search/Exam
May 11, 2020
Text intended for grant (clean copy)
Search/Exam
May 11, 2020
Dec 20, 2019
Examination started
Search/Exam
Apr 3, 2019
Feb 12, 2019
(Electronic) Receipt
Search/Exam
Feb 12, 2019
Feb 12, 2019
Amended claims with annotations
Search/Exam
Feb 12, 2019
Feb 12, 2019
Amended description with annotations
Search/Exam
Feb 12, 2019
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Amendments received before examination
Search/Exam
Feb 12, 2019
Letter accompanying subsequently filed items
Search/Exam
Feb 6, 2019
Feb 4, 2019
Communication to designated inventor
Search/Exam
Jan 11, 2019
Nov 7, 2018
Annex
Search/Exam
Nov 7, 2018
Annex
Search/Exam
Nov 7, 2018
Letter concerning search matters
Search/Exam
Nov 7, 2018
Letter concerning search matters
Search/Exam
Nov 7, 2018
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Notification of the recording of a change
Search/Exam
Nov 7, 2018
Priority search results
Search/Exam
Nov 7, 2018
Request for entry into the European phase
Search/Exam
Nov 6, 2018
Nov 5, 2018
Information on entry into European phase
Search/Exam
Jan 16, 2018
Jan 10, 2018
Dec 28, 2017
Copy of the international search report
Search/Exam
Dec 28, 2017
Copy of the international search report
Search/Exam
Dec 28, 2017
Published international application - A1
Search/Exam
Oct 11, 2017
ISR: cited documents
PCTISA
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Jun 16, 2017
Abstract
PCTRO
Jun 16, 2017
Claims
PCTRO
Jun 16, 2017
Description
PCTRO
Jun 16, 2017
Jun 16, 2017
Drawings
PCTRO
Jun 16, 2017
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