Valve Apparatus For Influencing A Flow Of Medium

Patent No. EP3475585 (titled "Valve Apparatus For Influencing A Flow Of Medium") was filed by Hydac Systems & Services on Jun 16, 2017. The application was issued on Aug 19, 2020.

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	Apr 20, 2021	GROSSE SCHUMACHER KNAUER VON HIRSCHHAUSEN

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

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Jun 12, 2025
Decision of the Board of Appeal
Jun 12, 2025
F3032 Notification(s) of the decision
Jun 12, 2025
F3032 Notification(s) of the decision
Jun 2, 2025
F3017 Oral Proceedings: Notification of cancellation/postponing
Jun 2, 2025
F3017 Oral Proceedings: Notification of cancellation/postponing
Jun 2, 2025
F3345 Forwarding of submissions to parties
May 27, 2025
F3014 Oral Proceedings: Order cancelling/postponing
May 26, 2025
(Electronic) Receipt
May 26, 2025
Letter accompanying subsequently filed items
May 26, 2025
Request for revocation of patent
Apr 4, 2025
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Apr 4, 2025
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Mar 28, 2025
F3345 Forwarding of submissions to parties
Mar 25, 2025
(Electronic) Receipt
Mar 25, 2025
Letter accompanying subsequently filed items
Mar 25, 2025
Request for interpreters during oral proceedings
Jan 17, 2025
F3022 Oral proceedings: change of board composition
Jan 17, 2025
F3022 Oral proceedings: change of board composition
Jan 14, 2025
F3303.16 Change of composition of the Board (T)
Jun 5, 2024
F3011.1 Oral Proceedings: summons
Jun 5, 2024
F3011.1 Oral Proceedings: summons
Jun 5, 2024
Standard Communication Rule 103 (2) EPC
May 31, 2024
F3010 Oral proceedings: order for summons
Apr 29, 2024
F3345 Forwarding of submissions to parties
Apr 18, 2024
(Electronic) Receipt
Apr 18, 2024
Letter accompanying subsequently filed items
Apr 18, 2024
Letter relating to Appeal Procedure
Apr 10, 2024
Composition of the board (T)
Apr 5, 2024
F3345 Forwarding of submissions to parties
Apr 2, 2024
(Electronic) Receipt
Apr 2, 2024
Letter accompanying subsequently filed items
Apr 2, 2024
Non-Patent Literature cited during the appeal procedure
Apr 2, 2024
Reply to appeal
Mar 28, 2024
Miscellaneous requests concerning client data
Dec 5, 2023
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Nov 29, 2023
(Electronic) Receipt
Nov 29, 2023
Annexes (other than cited documents) regarding appeal procedure
Nov 29, 2023
Letter accompanying subsequently filed items
Nov 29, 2023
Non-Patent Literature cited during the appeal procedure
Nov 29, 2023
Statement of grounds of appeal
Nov 3, 2023
F3204 Communication of the file number to the parties
Nov 3, 2023
F3204 Communication of the file number to the parties
Oct 27, 2023
(Electronic) Receipt
Oct 27, 2023
Letter accompanying subsequently filed items
Oct 27, 2023
Notice of appeal
Sep 4, 2023
Advice of delivery
Aug 30, 2023
Advice of delivery
Aug 28, 2023
Annex to the communication - opposition
Aug 28, 2023
Decision of the Opposition Division and instruction
Aug 28, 2023
Druckexemplar in opposition procedure
Aug 28, 2023
Grounds for the decision (Annex) - opposition
Aug 28, 2023
Interlocutory decision in opposition proceedings
Aug 28, 2023
Interlocutory decision in opposition proceedings
Aug 28, 2023
Means of redress
Aug 28, 2023
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Aug 28, 2023
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Aug 28, 2023
Provision of a copy of the minutes - opposition procedure
Aug 28, 2023
Provision of a copy of the minutes - opposition procedure
Aug 28, 2023
Scanned annex to a communication - opposition procedure
Aug 28, 2023
Transmittal of decision / summons - opposition
Aug 28, 2023
Transmittal of decision / summons - opposition
Jul 14, 2023
Information about the result of oral proceedings
Jun 30, 2023
Advice of delivery
Jun 29, 2023
Advice of delivery
Jun 29, 2023
Advice of delivery
Jun 26, 2023
Communication about missing advice of delivery
Jun 26, 2023
Communication about missing advice of delivery
May 22, 2023
Brief communication - Opposition proceedings
May 22, 2023
Brief communication - Opposition proceedings
May 17, 2023
Advice of delivery
May 16, 2023
Brief communication - Opposition proceedings
May 12, 2023
Transmittal of decision / summons - opposition
May 11, 2023
(Electronic) Receipt
May 11, 2023
(Electronic) Receipt
May 11, 2023
Citation in opposition procedure - 021
May 11, 2023
Citation in opposition procedure - 022
May 11, 2023
Consolidated list of cited opposition documents
May 11, 2023
Letter accompanying subsequently filed items
May 11, 2023
Letter accompanying subsequently filed items
May 11, 2023
Request for interpreters during oral proceedings
May 11, 2023
Written submission in preparation to/during oral proceedings
May 10, 2023
Advice of delivery
May 8, 2023
Information concerning oral proceedings
May 8, 2023
Notification concerning the date of oral proceedings
May 8, 2023
Notification concerning the date of oral proceedings
May 8, 2023
Summons to attend oral proceedings
May 8, 2023
Summons to attend oral proceedings
May 8, 2023
Transmittal of decision / summons - opposition
May 8, 2023
Transmittal of decision / summons - opposition
May 8, 2023
Transmittal of decision / summons - opposition
May 5, 2023
(Electronic) Receipt
May 5, 2023
(Electronic) Receipt
May 5, 2023
(Electronic) Receipt
May 5, 2023
Advice of delivery
May 5, 2023
Any annexes (other than citation) to an opposition letter
May 5, 2023
Any annexes (other than citation) to an opposition letter
May 5, 2023
Letter accompanying subsequently filed items
May 5, 2023
Letter accompanying subsequently filed items
May 5, 2023
Request for interpreters during oral proceedings
May 5, 2023
Written submission in preparation to/during oral proceedings
Apr 18, 2023
(Electronic) Receipt
Apr 13, 2023
Advice of delivery
Apr 11, 2023
Brief communication - Opposition proceedings
Apr 6, 2023
Advice of delivery
Apr 6, 2023
Advice of delivery
Apr 4, 2023
Annex to the communication - opposition
Apr 4, 2023
Information concerning oral proceedings
Apr 4, 2023
Scanned annex to a communication - opposition procedure
Apr 4, 2023
Summons to give evidence
Apr 4, 2023
Summons to give evidence
Apr 4, 2023
Transmittal of decision / summons - opposition
Apr 4, 2023
Transmittal of decision / summons - opposition
Apr 4, 2023
Transmittal of decision / summons - opposition
Apr 4, 2023
Transmittal of decision / summons - opposition
Mar 31, 2023
(Electronic) Receipt
Mar 31, 2023
Letter accompanying subsequently filed items
Mar 31, 2023
Oral proceedings: Request for postponement
Mar 29, 2023
Notification concerning the date of oral proceedings
Mar 29, 2023
Notification concerning the date of oral proceedings
Mar 28, 2023
Decision on the taking of evidence
Jan 10, 2023
(Electronic) Receipt
Jan 10, 2023
Letter accompanying subsequently filed items
Jan 5, 2023
Notification concerning the date of oral proceedings
Jan 5, 2023
Notification concerning the date of oral proceedings
Dec 20, 2022
Brief communication - Opposition proceedings
Dec 13, 2022
Brief communication - Opposition proceedings
Dec 12, 2022
(Electronic) Receipt
Dec 12, 2022
Letter accompanying subsequently filed items
Dec 12, 2022
Request for interpreters during oral proceedings
Dec 7, 2022
(Electronic) Receipt
Dec 2, 2022
(Electronic) Receipt
Dec 2, 2022
Any annexes (other than citation) to an opposition letter
Dec 2, 2022
Auxiliary request during Opposition procedure
Dec 2, 2022
Auxiliary request during Opposition procedure
Dec 2, 2022
Auxiliary request during Opposition procedure
Dec 2, 2022
Auxiliary request during Opposition procedure - 01
Dec 2, 2022
Auxiliary request during Opposition procedure - 02
Dec 2, 2022
Auxiliary request during Opposition procedure - 03
Dec 2, 2022
Letter accompanying subsequently filed items
Dec 2, 2022
Main request during Opposition procedure
Dec 2, 2022
Main request during Opposition procedure
Dec 2, 2022
Main request during Opposition procedure
Dec 2, 2022
Main request during Opposition procedure
Dec 2, 2022
Written submission in preparation to/during oral proceedings
Oct 7, 2022
Brief communication - Opposition proceedings
Sep 27, 2022
(Electronic) Receipt
Sep 27, 2022
Citation in opposition procedure - 015
Sep 27, 2022
Citation in opposition procedure - 016
Sep 27, 2022
Letter accompanying subsequently filed items
Sep 27, 2022
Written submission in preparation to/during oral proceedings
Jul 26, 2022
Advice of delivery
Jul 25, 2022
Advice of delivery
Jul 21, 2022
Annex to the communication - opposition
Jul 21, 2022
Information concerning oral proceedings
Jul 21, 2022
Summons to attend oral proceedings
Jul 21, 2022
Summons to attend oral proceedings
Jul 21, 2022
Transmittal of decision / summons - opposition
Jul 21, 2022
Transmittal of decision / summons - opposition
Apr 14, 2022
Brief communication - Opposition proceedings
Apr 7, 2022
(Electronic) Receipt
Apr 7, 2022
Citation in opposition procedure - 015
Apr 7, 2022
Citation in opposition procedure - 016
Apr 7, 2022
Letter accompanying subsequently filed items
Apr 7, 2022
Letter regarding the opposition procedure (no time limit)
Mar 16, 2022
Brief communication - Opposition proceedings
Mar 9, 2022
(Electronic) Receipt
Mar 9, 2022
Auxiliary request during Opposition procedure
Mar 9, 2022
Auxiliary request during Opposition procedure
Mar 9, 2022
Auxiliary request during Opposition procedure
Mar 9, 2022
Auxiliary request during Opposition procedure - 01
Mar 9, 2022
Auxiliary request during Opposition procedure - 02
Mar 9, 2022
Auxiliary request during Opposition procedure - 03
Mar 9, 2022
Letter accompanying subsequently filed items
Mar 9, 2022
Letter regarding the opposition procedure (no time limit)
Mar 9, 2022
Main request during Opposition procedure
Mar 9, 2022
Main request during Opposition procedure
Feb 16, 2022
Enlargement of the examining/opposition division
Jan 17, 2022
Brief communication - Opposition proceedings
Jan 12, 2022
(Electronic) Receipt
Jan 12, 2022
Letter accompanying subsequently filed items
Jan 12, 2022
Letter regarding the opposition procedure (no time limit)
Oct 7, 2021
Brief communication - Opposition proceedings
Oct 4, 2021
(Electronic) Receipt
Oct 4, 2021
Auxiliary request during Opposition procedure
Oct 4, 2021
Auxiliary request during Opposition procedure - 01
Oct 4, 2021
Letter accompanying subsequently filed items
Oct 4, 2021
Main request during Opposition procedure
Oct 4, 2021
Main request during Opposition procedure
Oct 4, 2021
Reply of the patent proprietor to the notice(s) of opposition
Jun 4, 2021
Communication of a notice of opposition and request to file observations
Jun 4, 2021
Notice of further oppositions to opponent(s)
Apr 26, 2021
Communication of a notice of opposition - first information to patent proprietor
Apr 20, 2021
(Electronic) Receipt
Apr 20, 2021
Any annexes (other than citation) to an opposition letter
Apr 20, 2021
Any annexes (other than citation) to an opposition letter
Apr 20, 2021
Citation in opposition procedure - 001
Apr 20, 2021
Citation in opposition procedure - 002
Apr 20, 2021
Citation in opposition procedure - 003
Apr 20, 2021
Citation in opposition procedure - 004
Apr 20, 2021
Citation in opposition procedure - 005
Apr 20, 2021
Citation in opposition procedure - 006
Apr 20, 2021
Citation in opposition procedure - 007
Apr 20, 2021
Citation in opposition procedure - 008
Apr 20, 2021
Citation in opposition procedure - 009
Apr 20, 2021
Citation in opposition procedure - 010
Apr 20, 2021
Citation in opposition procedure - 011
Apr 20, 2021
Citation in opposition procedure - 012
Apr 20, 2021
Citation in opposition procedure - 013
Apr 20, 2021
Citation in opposition procedure - 014
Apr 20, 2021
Citation in opposition procedure - 015
Apr 20, 2021
Citation in opposition procedure - 016
Apr 20, 2021
Citation in opposition procedure - 017
Apr 20, 2021
Citation in opposition procedure - 018
Apr 20, 2021
Citation in opposition procedure - 019
Apr 20, 2021
Citation in opposition procedure - 020
Apr 20, 2021
Notice of opposition
Apr 20, 2021
Notice of opposition
Aug 31, 2020
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Jul 23, 2020
Decision to grant a European patent
Jul 7, 2020
(Electronic) Receipt
Jul 7, 2020
English translation of the claims
Jul 7, 2020
French translation of claims
Jul 7, 2020
Letter accompanying subsequently filed items
May 11, 2020
Bibliographic data of the European patent application
May 11, 2020
Communication about intention to grant a European patent
May 11, 2020
Intention to grant (signatures)
May 11, 2020
Text intended for grant (clean copy)
May 11, 2020
Text intended for grant (version for approval)
Dec 20, 2019
Examination started
Apr 3, 2019
Notification on forthcoming publication of bibliographic data
Feb 12, 2019
(Electronic) Receipt
Feb 12, 2019
Amended claims filed after receipt of (European) search report
Feb 12, 2019
Amended claims with annotations
Feb 12, 2019
Amended description filed after receipt of (European) search report
Feb 12, 2019
Amended description with annotations
Feb 12, 2019
Amended drawings filed after receipt of (European) search report
Feb 12, 2019
Amendments received before examination
Feb 12, 2019
Letter accompanying subsequently filed items
Feb 6, 2019
Communication concerning correction of deficiencies in written opinion/amendment of application/payment of claims fee
Feb 4, 2019
Communication to designated inventor
Jan 11, 2019
Copy of the international preliminary report on patentability
Nov 7, 2018
Annex
Nov 7, 2018
Annex
Nov 7, 2018
Letter concerning search matters
Nov 7, 2018
Letter concerning search matters
Nov 7, 2018
Notification of the recording of a change
Nov 7, 2018
Notification of the recording of a change
Nov 7, 2018
Notification of the recording of a change
Nov 7, 2018
Priority search results
Nov 7, 2018
Request for entry into the European phase
Nov 6, 2018
Letter relating to the automatic debiting procedure
Nov 5, 2018
Information on entry into European phase
Jan 16, 2018
Priority document (electronically transmitted)
Jan 10, 2018
Letter relating to the automatic debiting procedure
Dec 28, 2017
Copy of the international search report
Dec 28, 2017
Copy of the international search report
Dec 28, 2017
Published international application - A1
Oct 11, 2017
ISR: cited documents
Oct 11, 2017
International Search Report - copy in English for the IB
Oct 10, 2017
Written opinion of the ISA, boxes No. I to VIII
Oct 10, 2017
Written opinion of the ISA, cover sheet
Oct 10, 2017
Written opinion of the ISA, supplemental box
Jul 18, 2017
Incoming letter related to PCT RO
Jul 18, 2017
Incoming letter related to PCT RO
Jul 10, 2017
Communication in cases for which no other form is available
Jul 10, 2017
Notification of receipt of Search copy
Jul 7, 2017
Notification of the international application number and of the international filing date
Jul 5, 2017
Request form for international application (copy for ISA/EP)
Jun 16, 2017
Abstract
Jun 16, 2017
Claims
Jun 16, 2017
Description
Jun 16, 2017
Document concerning fees and payments
Jun 16, 2017
Drawings
Jun 16, 2017
Electronic request for grant of an International application
Jun 16, 2017
Payment of fees and costs

EP3475585

HYDAC SYSTEMS & SERVICES

Application Number: EP17732747A
Filing Date: Jun 16, 2017
Status: Revoked; Jun 27, 2025
Publication Date: Aug 19, 2020
External Links: Slate, Register , Google Patents

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Valve Apparatus For Influencing A Flow Of Medium

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Dossier Documents

EP3475585