Return Valve

Patent No. EP3067604 (titled "Return Valve") was filed by Hydac Fluidtechnik GmbH on Jan 16, 2016. The application was issued on Apr 4, 2018.

Patent Family

Statuses, jurisdictions and citation links are shared on request.

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
HAWE HYDRAULIK SE	Nov 5, 2018	WITTMER

Dossier Documents

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

Feb 28, 2022
Communication to the parties concerning the termination of the opposition proceedings (opponent)
Feb 28, 2022
Communication to the parties concerning the termination of the opposition proceedings (proprietor)
Feb 23, 2022
Termination of the opposition proceedings with revocation of patent
Nov 16, 2021
Advice of delivery
Nov 16, 2021
Advice of delivery
Nov 10, 2021
Annex to the communication - opposition
Nov 10, 2021
Decision of the Opposition Division and instruction
Nov 10, 2021
Decision revoking the European patent
Nov 10, 2021
Decision revoking the European patent
Nov 10, 2021
Grounds for the decision (Annex) - opposition
Nov 10, 2021
Means of redress
Nov 10, 2021
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Nov 10, 2021
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Nov 10, 2021
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Nov 10, 2021
Provision of a copy of the minutes - opposition procedure
Nov 10, 2021
Provision of a copy of the minutes - opposition procedure
Nov 10, 2021
Transmittal of decision / summons - opposition
Nov 10, 2021
Transmittal of decision / summons - opposition
Oct 22, 2021
Notification concerning the date of oral proceedings
Oct 22, 2021
Notification concerning the date of oral proceedings
Oct 21, 2021
Brief communication - Opposition proceedings
Oct 21, 2021
Information about the result of oral proceedings
Oct 20, 2021
Notification concerning the date of oral proceedings
Oct 20, 2021
Notification concerning the date of oral proceedings
Oct 18, 2021
(Electronic) Receipt
Oct 18, 2021
Letter accompanying subsequently filed items
Oct 18, 2021
Written submission in preparation to/during oral proceedings
Oct 11, 2021
Brief communication - Opposition proceedings
Oct 4, 2021
(Electronic) Receipt
Oct 4, 2021
Letter accompanying subsequently filed items
Oct 4, 2021
Written submission in preparation to/during oral proceedings
Jul 6, 2021
Brief communication - Opposition proceedings
Jun 30, 2021
(Electronic) Receipt
Jun 30, 2021
Letter accompanying subsequently filed items
Jun 30, 2021
Written submission in preparation to/during oral proceedings
Jun 28, 2021
Brief communication - Opposition proceedings
Jun 21, 2021
Written submission in preparation to/during oral proceedings
Jun 10, 2021
Notification concerning the date of oral proceedings
Jun 10, 2021
Notification concerning the date of oral proceedings
Feb 12, 2021
Brief communication - Opposition proceedings
Jan 29, 2021
(Electronic) Receipt
Jan 29, 2021
Letter accompanying subsequently filed items
Jan 29, 2021
Request for interpreters during oral proceedings
Dec 1, 2020
Advice of delivery
Nov 30, 2020
Advice of delivery
Nov 26, 2020
Acknowledgement of a document
Nov 26, 2020
Acknowledgement of a document
Nov 26, 2020
Information concerning oral proceedings
Nov 26, 2020
Notification concerning the date of oral proceedings
Nov 26, 2020
Notification concerning the date of oral proceedings
Nov 26, 2020
Summons to attend oral proceedings
Nov 26, 2020
Summons to attend oral proceedings
Nov 4, 2020
Brief communication - Opposition proceedings
Oct 26, 2020
Any annexes (other than citation) to an opposition letter
Oct 26, 2020
Oral proceedings: Request for postponement
Oct 23, 2020
Advice of delivery
Oct 22, 2020
Advice of delivery
Oct 21, 2020
Advice of delivery
Oct 19, 2020
Acknowledgement of a document
Oct 19, 2020
Acknowledgement of a document
Oct 19, 2020
Annex to the communication - opposition
Oct 19, 2020
Information concerning oral proceedings
Oct 19, 2020
Summons to attend oral proceedings
Oct 19, 2020
Summons to attend oral proceedings
Sep 15, 2020
Brief communication - Opposition proceedings
Sep 15, 2020
Notification concerning the date of oral proceedings
Sep 15, 2020
Notification concerning the date of oral proceedings
Sep 7, 2020
(Electronic) Receipt
Sep 7, 2020
Letter accompanying subsequently filed items
Sep 7, 2020
Patent document cited during the opposition procedure
Sep 7, 2020
Written submission in preparation to/during oral proceedings
Aug 4, 2020
(Electronic) Receipt
Aug 4, 2020
Letter accompanying subsequently filed items
Aug 4, 2020
Oral proceedings: reply to date proposed
Jul 28, 2020
Notification concerning the date of oral proceedings
Jul 28, 2020
Notification concerning the date of oral proceedings
Jul 7, 2020
Brief communication - Opposition proceedings
Jun 30, 2020
(Electronic) Receipt
Jun 30, 2020
Amended claims with annotations
Jun 30, 2020
Amended description with annotations
Jun 30, 2020
Any annexes (other than citation) to an opposition letter
Jun 30, 2020
Claims
Jun 30, 2020
Description
Jun 30, 2020
Letter accompanying subsequently filed items
Jun 30, 2020
Written submission in preparation to/during oral proceedings
Jun 17, 2020
Advice of delivery
Jun 12, 2020
Communication about missing advice of delivery
May 14, 2020
Acknowledgement of a document
May 7, 2020
Advice of delivery
May 4, 2020
Acknowledgement of a document
May 4, 2020
Acknowledgement of a document
May 4, 2020
Annex to the communication - opposition
May 4, 2020
Information concerning oral proceedings
May 4, 2020
Summons to attend oral proceedings
May 4, 2020
Summons to attend oral proceedings
Feb 25, 2020
Brief communication - Opposition proceedings
Feb 18, 2020
Brief communication - Opposition proceedings
Feb 14, 2020
Request for interpreters during oral proceedings
Feb 11, 2020
(Electronic) Receipt
Feb 11, 2020
Amended claims with annotations
Feb 11, 2020
Amended description with annotations
Feb 11, 2020
Any annexes (other than citation) to an opposition letter
Feb 11, 2020
Claims
Feb 11, 2020
Description
Feb 11, 2020
Letter accompanying subsequently filed items
Feb 11, 2020
Written submission in preparation to/during oral proceedings
Oct 29, 2019
Advice of delivery
Oct 1, 2019
Advice of delivery
Oct 1, 2019
Advice of delivery
Sep 30, 2019
Advice of delivery
Sep 25, 2019
Acknowledgement of a document
Sep 25, 2019
Acknowledgement of a document
Sep 25, 2019
Annex to the communication - opposition
Sep 25, 2019
Information concerning oral proceedings
Sep 25, 2019
Summons to attend oral proceedings
Sep 25, 2019
Summons to attend oral proceedings
Aug 28, 2019
Brief communication - Opposition proceedings
Aug 20, 2019
Letter regarding the opposition procedure (no time limit)
May 22, 2019
Brief communication - Opposition proceedings
May 15, 2019
Reply of the patent proprietor to the notice(s) of opposition
Jan 18, 2019
Communication of a notice of opposition and request to file observations
Jan 18, 2019
Notice of further oppositions to opponent(s)
Nov 15, 2018
Communication of a notice of opposition - first information to patent proprietor
Nov 5, 2018
(Electronic) Receipt
Nov 5, 2018
Any annexes (other than citation) to an opposition letter
Nov 5, 2018
Non-patent literature cited during the opposition procedure
Nov 5, 2018
Notice of opposition
Nov 5, 2018
Notice of opposition
Nov 5, 2018
Patent document cited during the opposition procedure
Nov 5, 2018
Patent document cited during the opposition procedure
Nov 5, 2018
Patent document cited during the opposition procedure
Nov 5, 2018
Patent document cited during the opposition procedure
Nov 5, 2018
Patent document cited during the opposition procedure
Nov 5, 2018
Patent document cited during the opposition procedure
Nov 5, 2018
Patent document cited during the opposition procedure
Nov 5, 2018
Patent document cited during the opposition procedure
Nov 5, 2018
Patent document cited during the opposition procedure
Nov 5, 2018
Patent document cited during the opposition procedure
Nov 5, 2018
Patent document cited during the opposition procedure
Nov 5, 2018
Patent document cited during the opposition procedure
Nov 5, 2018
Patent document cited during the opposition procedure
Nov 5, 2018
Patent document cited during the opposition procedure
Apr 16, 2018
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Mar 8, 2018
Decision to grant a European patent
Feb 21, 2018
English translation of the claims
Feb 21, 2018
Filing of the translations of the claims
Feb 21, 2018
French translation of claims
Feb 21, 2018
Letter concerning fees and payments
Jan 11, 2018
Submission concerning representation
Nov 20, 2017
Bibliographic data of the European patent application
Nov 20, 2017
Communication about intention to grant a European patent
Nov 20, 2017
Intention to grant (signatures)
Nov 20, 2017
Text intended for grant (clean copy)
Nov 20, 2017
Text intended for grant (version for approval)
Sep 20, 2017
(Electronic) Receipt
Sep 20, 2017
Amended claims with annotations
Sep 20, 2017
Amended description with annotations
Sep 20, 2017
Claims
Sep 20, 2017
Description
Sep 20, 2017
Letter accompanying subsequently filed items
Sep 20, 2017
Reply to communication from the Examining Division
May 26, 2017
Annex to the communication
May 26, 2017
Communication from the Examining Division
May 16, 2017
Examination started
Mar 14, 2017
Amended claims filed after receipt of (European) search report
Mar 14, 2017
Amended claims with annotations
Mar 14, 2017
Amended description filed after receipt of (European) search report
Mar 14, 2017
Amended description with annotations
Mar 14, 2017
Amendments received before examination
Mar 13, 2017
Amended claims filed after receipt of (European) search report
Mar 13, 2017
Amended claims with annotations
Mar 13, 2017
Amended description filed after receipt of (European) search report
Mar 13, 2017
Amended description with annotations
Mar 13, 2017
Amendments received before examination
Feb 2, 2017
Letter relating to the automatic debiting procedure
Feb 2, 2017
Letter relating to the automatic debiting procedure
Sep 19, 2016
Information about publication, reminder payment of designation fee, response to extended European search report, if applicable
Sep 6, 2016
Letter concerning fees and payments
Sep 6, 2016
Payment of fees and costs
Aug 18, 2016
Notification of forthcoming publication
Jul 29, 2016
Communication regarding the transmission of the European search report
Jul 29, 2016
European search opinion
Jul 29, 2016
European search report
Jul 29, 2016
Information on Search Strategy
Jul 22, 2016
Modified abstract
Jul 15, 2016
Search started
Mar 11, 2016
Communication to designated inventor
Mar 11, 2016
Communication to designated inventor
Feb 4, 2016
Authorisation
Feb 4, 2016
Letter concerning the priority
Feb 4, 2016
Priority document
Jan 16, 2016
Abstract
Jan 16, 2016
Claims
Jan 16, 2016
Description
Jan 16, 2016
Designation of inventor
Jan 16, 2016
Drawings
Jan 16, 2016
Payment of fees and costs
Jan 16, 2016
Priority search results
Jan 16, 2016
Request for grant of a European patent

EP3067604

HYDAC FLUIDTECHNIK GMBH

Application Number: EP16000101A
Filing Date: Jan 16, 2016
Status: Revoked; Feb 25, 2022
Publication Date: Apr 4, 2018
External Links: Slate, Register , Google Patents

IP Verse

Return Valve

Patent Summary

Patent Family

Patent Oppositions

Dossier Documents

EP3067604