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The patent EP2795137 was granted to Hydac Fluidtechnik on Apr 10, 2019. The application was filed on Nov 21, 2012 under application number EP12794198A. The patent is currently recorded with a legal status of "Opposition Rejected".

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 |
|---|---|---|---|
| HAPPOLD | Dec 2, 2019 | DTS PATENT UND RECHTSANWALTE PARTMBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | DE1194663 |
| INTERNATIONAL-SEARCH-REPORT | DE1750092 |
| OPPOSITION | DE1168257 |
| OPPOSITION | DE1194663 |
| OPPOSITION | DE1750092 |
| OPPOSITION | DE3613747 |
| OPPOSITION | JPS342179Y |
| OPPOSITION | US5601116 |
| OPPOSITION | US5899232 |
| OPPOSITION | WO2011090855 |
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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May 9, 2023
Refund of fees
Appeal
May 4, 2023
May 2, 2023
May 2, 2023
May 2, 2023
May 2, 2023
Apr 28, 2023
Advice of delivery
Appeal
Apr 28, 2023
Apr 27, 2023
(Electronic) Receipt
Appeal
Apr 27, 2023
Apr 27, 2023
Withdrawal of an appeal
Appeal
Apr 13, 2023
Apr 13, 2023
Apr 5, 2023
Apr 3, 2023
(Electronic) Receipt
Appeal
Apr 3, 2023
Apr 3, 2023
Feb 3, 2023
Dec 7, 2022
May 6, 2022
Advice of delivery
Appeal
May 4, 2022
May 4, 2022
May 4, 2022
May 4, 2022
Apr 29, 2022
Feb 1, 2022
Feb 1, 2022
Feb 1, 2022
Jan 18, 2022
Jan 18, 2022
Jan 11, 2022
Jan 7, 2022
Jan 7, 2022
Dec 22, 2021
Dec 14, 2021
(Electronic) Receipt
Appeal
Dec 14, 2021
Dec 14, 2021
Reply to appeal
Appeal
Aug 12, 2021
Aug 6, 2021
(Electronic) Receipt
Appeal
Aug 6, 2021
Aug 6, 2021
Aug 6, 2021
Jun 14, 2021
Jun 7, 2021
(Electronic) Receipt
Appeal
Jun 7, 2021
Jun 7, 2021
Jun 7, 2021
Notice of appeal
Appeal
Apr 19, 2021
Apr 15, 2021
Apr 14, 2021
Apr 14, 2021
Apr 14, 2021
Apr 14, 2021
Means of redress
OPPO
Apr 14, 2021
Apr 14, 2021
Apr 7, 2021
Mar 24, 2021
Mar 24, 2021
Mar 24, 2021
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Mar 16, 2021
Mar 15, 2021
Mar 15, 2021
Mar 1, 2021
Feb 26, 2021
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Feb 22, 2021
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Jan 21, 2021
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Sep 16, 2020
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Sep 11, 2020
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Sep 11, 2020
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Jun 2, 2020
May 27, 2020
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Jan 24, 2020
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Jan 10, 2020
Dec 20, 2019
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Dec 13, 2019
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Dec 2, 2019
Dec 2, 2019
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Dec 2, 2019
Dec 2, 2019
Dec 2, 2019
Dec 2, 2019
Apr 24, 2019
Mar 14, 2019
Decision to grant a European patent
Search/Exam
Feb 22, 2019
English translation of the claims
Search/Exam
Feb 22, 2019
Filing of the translations of the claims
Search/Exam
Feb 22, 2019
French translation of claims
Search/Exam
Nov 27, 2018
Nov 27, 2018
Nov 27, 2018
Intention to grant (signatures)
Search/Exam
Nov 27, 2018
Text intended for grant (clean copy)
Search/Exam
Nov 27, 2018
Oct 16, 2018
(Electronic) Receipt
Search/Exam
Oct 16, 2018
Amended claims with annotations
Search/Exam
Oct 16, 2018
Amended description with annotations
Search/Exam
Oct 16, 2018
Claims
Search/Exam
Oct 16, 2018
Description
Search/Exam
Oct 16, 2018
Letter accompanying subsequently filed items
Search/Exam
Oct 16, 2018
Jul 2, 2018
Annex to the communication
Search/Exam
Jul 2, 2018
Communication from the Examining Division
Search/Exam
Jun 26, 2018
Examination started
Search/Exam
Feb 15, 2018
Jan 17, 2018
Jan 11, 2018
Jan 11, 2018
Submission concerning representation
Search/Exam
Feb 2, 2017
Feb 2, 2017
Oct 27, 2016
Payment of fees and costs
Search/Exam
Oct 28, 2015
Payment of fees and costs
Search/Exam
Feb 6, 2015
Abstract
Search/Exam
Feb 6, 2015
Abstract
Search/Exam
Feb 6, 2015
Feb 6, 2015
Amended claims with annotations
Search/Exam
Feb 6, 2015
Feb 6, 2015
Amended description with annotations
Search/Exam
Feb 6, 2015
Amendments received before examination
Search/Exam
Feb 4, 2015
Abstract
Search/Exam
Feb 4, 2015
Abstract
Search/Exam
Feb 4, 2015
Feb 4, 2015
Amended claims with annotations
Search/Exam
Feb 4, 2015
Feb 4, 2015
Amended description with annotations
Search/Exam
Feb 4, 2015
Amendments received before examination
Search/Exam
Oct 28, 2014
Payment of fees and costs
Search/Exam
Oct 1, 2014
Jul 30, 2014
Jul 28, 2014
Communication to designated inventor
Search/Exam
Jul 28, 2014
Communication to designated inventor
Search/Exam
Jul 7, 2014
May 27, 2014
Annex
Search/Exam
May 27, 2014
Letter concerning search matters
Search/Exam
May 27, 2014
Letter concerning search matters
Search/Exam
May 27, 2014
Letter concerning search matters
Search/Exam
May 27, 2014
Payment of fees and costs
Search/Exam
May 27, 2014
Priority search results
Search/Exam
May 27, 2014
Request for entry into the European phase
Search/Exam
May 6, 2014
Information on entry into European phase
Search/Exam
Jul 17, 2013
Jun 27, 2013
Copy of the international search report
Search/Exam
Jun 27, 2013
Copy of the international search report
Search/Exam
Jun 27, 2013
Published international application - A1
Search/Exam
Apr 23, 2013
Apr 23, 2013
Apr 23, 2013
Nov 21, 2012
Abstract
PCTRO
Nov 21, 2012
Claims
PCTRO
Nov 21, 2012
Description
PCTRO
Nov 21, 2012
Drawings
PCTRO
Nov 21, 2012