The weekly litigation news digest is live. Subscribe now
The patent EP3504433 was granted to Hydac Fluidtechnik on Jan 17, 2024. The application was filed on Aug 29, 2017 under application number EP17761804A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

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 | Jan 7, 2021 | WITTMER | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE19652706 |
| INTERNATIONAL-SEARCH-REPORT | CH596697 |
| INTERNATIONAL-SEARCH-REPORT | DE29906881U |
| INTERNATIONAL-SEARCH-REPORT | EP1666726 |
| INTERNATIONAL-SEARCH-REPORT | EP2025934 |
| INTERNATIONAL-SEARCH-REPORT | EP2241753 |
| OPPOSITION | CH596697 |
| OPPOSITION | DE102014103958 |
| OPPOSITION | DE102015115841 |
| OPPOSITION | DE19513286 |
| OPPOSITION | DE19615053 |
| OPPOSITION | DE19652706 |
| OPPOSITION | DE19942567 |
| OPPOSITION | DE20007554U |
| OPPOSITION | DE2021210 |
| OPPOSITION | DE29906881U |
| OPPOSITION | EP0810717 |
| OPPOSITION | EP1666726 |
| OPPOSITION | EP2025934 |
| OPPOSITION | EP2241753 |
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
Get instant alerts for new documents
Dec 21, 2023
Dec 21, 2023
Dec 6, 2023
Dec 6, 2023
Dec 6, 2023
Dec 6, 2023
Oct 25, 2023
Oct 25, 2023
Oct 25, 2023
Oct 18, 2023
Jul 13, 2023
Jul 11, 2023
Jul 7, 2023
Jul 7, 2023
Jul 7, 2023
Jul 7, 2023
Jul 7, 2023
Jul 7, 2023
Jul 7, 2023
Means of redress
OPPO
Jul 7, 2023
Jul 7, 2023
Jul 7, 2023
Jul 7, 2023
Jul 7, 2023
Jul 7, 2023
Jul 7, 2023
Jul 7, 2023
Jan 20, 2023
Jan 19, 2023
Jan 19, 2023
Jan 17, 2023
Jan 17, 2023
Jan 17, 2023
Jan 17, 2023
Jan 17, 2023
Dec 13, 2022
Dec 6, 2022
Dec 6, 2022
Dec 5, 2022
Dec 5, 2022
Dec 5, 2022
Dec 1, 2022
Dec 1, 2022
Oct 19, 2022
Oct 11, 2022
Oct 11, 2022
Oct 11, 2022
Oct 11, 2022
Oct 11, 2022
Oct 11, 2022
Oct 11, 2022
Oct 11, 2022
Oct 11, 2022
Oct 11, 2022
Oct 11, 2022
Description
OPPO
Oct 11, 2022
Description
OPPO
Oct 11, 2022
Description
OPPO
Oct 11, 2022
Oct 11, 2022
Aug 30, 2022
Aug 23, 2022
Aug 23, 2022
Aug 23, 2022
Aug 23, 2022
Jul 12, 2022
Jul 12, 2022
Jul 8, 2022
Jul 8, 2022
Jul 8, 2022
Jul 8, 2022
Jul 8, 2022
Jul 8, 2022
Jul 8, 2022
Jul 2, 2021
Jun 29, 2021
Jun 29, 2021
Jun 29, 2021
May 31, 2021
May 25, 2021
May 25, 2021
May 25, 2021
Feb 3, 2021
Feb 3, 2021
Jan 14, 2021
Jan 7, 2021
Jan 7, 2021
Jan 7, 2021
Jan 7, 2021
Jan 7, 2021
Jan 7, 2021
Jan 7, 2021
Jan 7, 2021
Jan 7, 2021
Jan 7, 2021
Jan 7, 2021
Jan 7, 2021
Jan 7, 2021
Jan 7, 2021
Jan 7, 2021
Jan 7, 2021
Jan 7, 2021
Jan 7, 2021
Jan 7, 2021
Jan 7, 2021
Jan 7, 2021
Jan 7, 2021
Jan 7, 2021
May 6, 2020
Mar 26, 2020
Decision to grant a European patent
Search/Exam
Mar 10, 2020
English translation of the claims
Search/Exam
Mar 10, 2020
Filing of the translations of the claims
Search/Exam
Mar 10, 2020
French translation of claims
Search/Exam
Dec 17, 2019
Dec 17, 2019
Dec 17, 2019
Intention to grant (signatures)
Search/Exam
Dec 17, 2019
Text intended for grant (clean copy)
Search/Exam
Dec 17, 2019
Dec 3, 2019
Examination started
Search/Exam
Oct 17, 2019
Oct 17, 2019
Amended claims with annotations
Search/Exam
Oct 17, 2019
Oct 17, 2019
Amended description with annotations
Search/Exam
Oct 17, 2019
Amendments received before examination
Search/Exam
Jun 5, 2019
Apr 10, 2019
Apr 8, 2019
Communication to designated inventor
Search/Exam
Apr 8, 2019
Communication to designated inventor
Search/Exam
Mar 20, 2019
Jan 31, 2019
Information regarding early processing
Search/Exam
Jan 11, 2019
Information on entry into European phase
Search/Exam
Jan 9, 2019
Annex
Search/Exam
Jan 9, 2019
Annex
Search/Exam
Jan 9, 2019
Priority search results
Search/Exam
Jan 9, 2019
Request for entry into the European phase
Search/Exam
Jan 3, 2019
Mar 27, 2018
Mar 8, 2018
Copy of the international search report
Search/Exam
Mar 8, 2018
Copy of the international search report
Search/Exam
Mar 8, 2018
Published international application - A1
Search/Exam
Nov 21, 2017
Nov 21, 2017
Nov 21, 2017
Oct 4, 2017
Oct 4, 2017
Sep 12, 2017
Aug 29, 2017
Abstract
PCTRO
Aug 29, 2017
Claims
PCTRO
Aug 29, 2017
Description
PCTRO
Aug 29, 2017
Aug 29, 2017
Drawings
PCTRO
Aug 29, 2017
Aug 29, 2017