Wave Seal For Filter Element

Patent No. EP3666359 (titled "Wave Seal For Filter Element") was filed by Parker Hannifin on Nov 2, 2016. The application was issued on Sep 20, 2023.

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
DONALDSON	Jun 11, 2024	IPLODGE

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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Dec 11, 2025
Annex to the communication - opposition
Dec 11, 2025
Brief communication - Opposition proceedings
Dec 11, 2025
Brief communication - Opposition proceedings
Dec 11, 2025
Decision of the Opposition Division and instruction
Dec 11, 2025
Druckexemplar in opposition procedure
Dec 11, 2025
Grounds for the decision (Annex) - opposition
Dec 11, 2025
Interlocutory decision in opposition proceedings
Dec 11, 2025
Interlocutory decision in opposition proceedings
Dec 11, 2025
Means of redress
Dec 11, 2025
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Dec 11, 2025
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Dec 11, 2025
Provision of a copy of the minutes - opposition procedure
Dec 11, 2025
Provision of a copy of the minutes - opposition procedure
Dec 11, 2025
Scanned annex to a communication - opposition procedure
Nov 5, 2025
Information about the result of oral proceedings
Sep 11, 2025
Brief communication - Opposition proceedings
Sep 9, 2025
Brief communication - Opposition proceedings
Sep 5, 2025
(Electronic) Receipt
Sep 5, 2025
Request for interpreters during oral proceedings
Sep 4, 2025
(Electronic) Receipt
Sep 4, 2025
Letter accompanying subsequently filed items
Sep 4, 2025
Request for interpreters during oral proceedings
Apr 30, 2025
Annex to the communication - opposition
Apr 30, 2025
Information concerning oral proceedings
Apr 30, 2025
Scanned annex to a communication - opposition procedure
Apr 30, 2025
Summons to attend oral proceedings
Apr 30, 2025
Summons to attend oral proceedings
Apr 30, 2025
Summons to attend oral proceedings
Apr 30, 2025
Summons to attend oral proceedings
Nov 5, 2024
Brief communication - Opposition proceedings
Oct 30, 2024
(Electronic) Receipt
Oct 30, 2024
Amended claims with annotations
Oct 30, 2024
Auxiliary request during Opposition procedure - 01
Oct 30, 2024
Citation in opposition procedure - 008
Oct 30, 2024
Consolidated list of cited opposition documents
Oct 30, 2024
Letter accompanying subsequently filed items
Oct 30, 2024
Letter regarding the opposition procedure (no time limit)
Oct 30, 2024
Reply of the patent proprietor to the notice(s) of opposition
Jul 2, 2024
Communication of a notice of opposition and request to file observations
Jul 2, 2024
Notice of further oppositions to opponent(s)
Jun 14, 2024
Communication of a notice of opposition - first information to patent proprietor
Jun 11, 2024
(Electronic) Receipt
Jun 11, 2024
Any annexes (other than citation) to an opposition letter
Jun 11, 2024
Any annexes (other than citation) to an opposition letter
Jun 11, 2024
Any annexes (other than citation) to an opposition letter
Jun 11, 2024
Any annexes (other than citation) to an opposition letter
Jun 11, 2024
Any annexes (other than citation) to an opposition letter
Jun 11, 2024
Any annexes (other than citation) to an opposition letter
Jun 11, 2024
Citation in opposition procedure - 001
Jun 11, 2024
Citation in opposition procedure - 002
Jun 11, 2024
Citation in opposition procedure - 003
Jun 11, 2024
Citation in opposition procedure - 004
Jun 11, 2024
Citation in opposition procedure - 005
Jun 11, 2024
Citation in opposition procedure - 006
Jun 11, 2024
Citation in opposition procedure - 007
Jun 11, 2024
Notice of opposition
Jun 11, 2024
Notice of opposition
Oct 4, 2023
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Aug 24, 2023
Decision to grant a European patent
Aug 11, 2023
(Electronic) Receipt
Aug 11, 2023
Filing of the translations of the claims
Aug 11, 2023
French translation of claims
Aug 11, 2023
German translation of the claims
Aug 11, 2023
Letter accompanying subsequently filed items
Apr 24, 2023
Annex to the communication about intention to grant a European patent
Apr 24, 2023
Bibliographic data of the European patent application
Apr 24, 2023
Communication about intention to grant a European patent
Apr 24, 2023
Intention to grant (signatures)
Apr 24, 2023
Text intended for grant (clean copy)
Apr 24, 2023
Text intended for grant (version for approval)
Jan 3, 2023
Communication of amended entries concerning the representative
Dec 21, 2022
Letter accompanying subsequently filed items
Dec 21, 2022
Submission concerning change of applicant's representative
Nov 2, 2022
(Electronic) Receipt
Nov 2, 2022
Amended claims with annotations
Nov 2, 2022
Amended description with annotations
Nov 2, 2022
Claims
Nov 2, 2022
Description
Nov 2, 2022
Letter accompanying subsequently filed items
Nov 2, 2022
Reply to communication from the Examining Division
Jun 28, 2022
Annex to the communication
Jun 28, 2022
Communication from the Examining Division
Jun 23, 2022
Examination started
Dec 6, 2021
Document concerning representation
Dec 6, 2021
Letter accompanying subsequently filed items
Nov 24, 2021
Document concerning representation
Nov 24, 2021
Letter accompanying subsequently filed items
Jun 29, 2021
Communication of amended entries concerning the representative
Jun 22, 2021
Annexes in respect of a client data request
Jun 22, 2021
Miscellaneous requests concerning client data
Jun 22, 2021
Submission concerning change of applicant's representative
Mar 29, 2021
Decision to allow further processing
Mar 22, 2021
(Electronic) Receipt
Mar 22, 2021
Amended claims filed after receipt of (European) search report
Mar 22, 2021
Amended claims with annotations
Mar 22, 2021
Amended description filed after receipt of (European) search report
Mar 22, 2021
Amended description with annotations
Mar 22, 2021
Amendments received before examination
Mar 22, 2021
Letter accompanying subsequently filed items
Jan 22, 2021
Application deemed to be withdrawn (non-reply to Written Opinion)
Dec 15, 2020
(Electronic) Receipt
Dec 15, 2020
Letter accompanying subsequently filed items
Dec 15, 2020
Written request for examination
Jul 8, 2020
Communication to designated inventor
Jun 30, 2020
(Electronic) Receipt
Jun 30, 2020
Letter accompanying subsequently filed items
Jun 30, 2020
Letter concerning the inventor
Jun 25, 2020
Invitation to indicate correct address of inventor
Jun 22, 2020
Reminder period for payment of examination fee/designation fee and correction of deficiencies in Written Opinion/amendment
Jun 18, 2020
Letter which had not been notified
May 27, 2020
Refund of fees
May 20, 2020
Notification of forthcoming publication
Apr 24, 2020
Communication regarding the transmission of the European search report
Apr 24, 2020
European search opinion
Apr 24, 2020
European search report
Apr 24, 2020
Information on Search Strategy
Apr 15, 2020
Search started
Apr 8, 2020
Refund of fees
Apr 6, 2020
Communication to designated inventor
Apr 6, 2020
Communication to designated inventor
Apr 6, 2020
Communication to designated inventor
Apr 6, 2020
Communication to designated inventor
Mar 27, 2020
Payment submission rejected
Feb 12, 2020
Abstract
Feb 12, 2020
Acknowledgement of receipt of electronic submission of the request for grant of a European patent
Feb 12, 2020
Claims
Feb 12, 2020
Description
Feb 12, 2020
Designation of inventor
Feb 12, 2020
Drawings
Feb 12, 2020
Matter concerning the application
Feb 12, 2020
Request for grant of a European patent
May 31, 2017
Priority document (electronically transmitted)
May 31, 2017
Priority document (electronically transmitted)

EP3666359

PARKER HANNIFIN

Application Number: EP20156848A
Filing Date: Nov 2, 2016
Status: Granted And Under Opposition; Aug 18, 2023
Publication Date: Sep 20, 2023
External Links: Slate, EP3666359B1, Google Patents

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Wave Seal For Filter Element

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Dossier Documents

EP3666359