Piston Ring And Method For Manufacturing Same

Patent No. EP3064810 (titled "Piston Ring And Method For Manufacturing Same") was filed by Kabushiki Kaisha Riken on Oct 27, 2014. The application was issued on Mar 31, 2021.

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
FEDERAL MOGUL BURSCHEID	Jan 11, 2019	HOFFMANN EITLE

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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Mar 4, 2021
Decision to maintain the European patent in amended form
Mar 4, 2021
Decision to maintain the European patent in amended form
Feb 26, 2021
Termination of the opposition proceedings with maintenance of patent
Feb 18, 2021
(Electronic) Receipt
Feb 18, 2021
Clean copy of description pages in the opposition procedure
Feb 18, 2021
Filing of the translation of the amended claims
Feb 18, 2021
Letter accompanying subsequently filed items
Jan 13, 2021
Brief communication - Opposition proceedings
Jan 13, 2021
Communication concerning surcharge and failure to observe time limit
Oct 15, 2020
(Electronic) Receipt
Oct 15, 2020
Filing of the translation of the amended claims
Oct 15, 2020
French translation of claims
Oct 15, 2020
German translation of the claims
Oct 15, 2020
Letter accompanying subsequently filed items
Aug 11, 2020
Communication of bibliographic data
Aug 11, 2020
Communication to opponent concerning maintenance
Aug 11, 2020
Communication with request to file translations
Aug 6, 2020
Maintenance of the patent with the documents specified in the final decision
Jun 24, 2020
Brief communication - Opposition proceedings
Jun 24, 2020
Brief communication - Opposition proceedings
Jun 18, 2020
(Electronic) Receipt
Jun 18, 2020
Letter accompanying subsequently filed items
Jun 18, 2020
Letter regarding the opposition procedure (no time limit)
Feb 19, 2020
Advice of delivery
Feb 18, 2020
Advice of delivery
Feb 17, 2020
Acknowledgement of a document
Feb 17, 2020
Acknowledgement of a document
Feb 17, 2020
Annex to the communication - opposition
Feb 17, 2020
Decision of the Opposition Division and instruction
Feb 17, 2020
Grounds for the decision (Annex) - opposition
Feb 17, 2020
Interlocutory decision in opposition proceedings
Feb 17, 2020
Internal form - Opposition/addressees
Feb 17, 2020
Internal form - Opposition/addressees
Feb 17, 2020
Means of redress
Feb 17, 2020
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Feb 17, 2020
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Feb 17, 2020
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Feb 17, 2020
OPPODREX with handwritten amendments
Feb 17, 2020
Provision of a copy of the minutes - opposition procedure
Feb 17, 2020
Scanned annex to a communication - opposition procedure
Jan 17, 2020
Information about the result of oral proceedings
Nov 21, 2019
Brief communication - Opposition proceedings
Nov 14, 2019
(Electronic) Receipt
Nov 14, 2019
Citation in opposition procedure - 010
Nov 14, 2019
Citation in opposition procedure - 011
Nov 14, 2019
Consolidated list of cited opposition documents
Nov 14, 2019
Letter accompanying subsequently filed items
Nov 14, 2019
Written submission in preparation to/during oral proceedings
Nov 13, 2019
Brief communication - Opposition proceedings
Nov 13, 2019
Brief communication - Opposition proceedings
Nov 8, 2019
(Electronic) Receipt
Nov 8, 2019
(Electronic) Receipt
Nov 8, 2019
Amended claims with annotations
Nov 8, 2019
Amended claims with annotations
Nov 8, 2019
Amended claims with annotations
Nov 8, 2019
Amended claims with annotations
Nov 8, 2019
Claims
Nov 8, 2019
Claims
Nov 8, 2019
Claims
Nov 8, 2019
Claims
Nov 8, 2019
Claims
Nov 8, 2019
Letter accompanying subsequently filed items
Nov 8, 2019
Letter accompanying subsequently filed items
Nov 8, 2019
Request for interpreters during oral proceedings
Nov 8, 2019
Written submission in preparation to/during oral proceedings
Jul 2, 2019
Advice of delivery
Jul 1, 2019
Advice of delivery
Jun 28, 2019
Advice of delivery
Jun 27, 2019
Advice of delivery
Jun 26, 2019
Acknowledgement of a document
Jun 26, 2019
Acknowledgement of a document
Jun 26, 2019
Annex to the communication - opposition
Jun 26, 2019
Information concerning oral proceedings
Jun 26, 2019
Summons to attend oral proceedings
Jun 26, 2019
Summons to attend oral proceedings
Jun 3, 2019
Brief communication - Opposition proceedings
May 28, 2019
(Electronic) Receipt
May 28, 2019
Amended claims with annotations
May 28, 2019
Amended claims with annotations
May 28, 2019
Any annexes (other than citation) to an opposition letter
May 28, 2019
Any annexes (other than citation) to an opposition letter
May 28, 2019
Claims
May 28, 2019
Claims
May 28, 2019
Letter accompanying subsequently filed items
May 28, 2019
Reply of the patent proprietor to the notice(s) of opposition
Jan 28, 2019
Communication of a notice of opposition and request to file observations
Jan 28, 2019
Notice of further oppositions to opponent(s)
Jan 24, 2019
Communication of a notice of opposition - first information to patent proprietor
Jan 11, 2019
(Electronic) Receipt
Jan 11, 2019
Citation in opposition procedure - 001
Jan 11, 2019
Citation in opposition procedure - 002
Jan 11, 2019
Citation in opposition procedure - 002
Jan 11, 2019
Citation in opposition procedure - 003
Jan 11, 2019
Citation in opposition procedure - 004
Jan 11, 2019
Citation in opposition procedure - 005
Jan 11, 2019
Citation in opposition procedure - 005
Jan 11, 2019
Citation in opposition procedure - 006
Jan 11, 2019
Citation in opposition procedure - 007
Jan 11, 2019
Citation in opposition procedure - 007
Jan 11, 2019
Citation in opposition procedure - 008
Jan 11, 2019
Citation in opposition procedure - 008
Jan 11, 2019
Citation in opposition procedure - 009
Jan 11, 2019
Citation in opposition procedure - 009
Jan 11, 2019
Notice of opposition
Jan 11, 2019
Notice of opposition
Nov 28, 2018
Submission concerning representation
Apr 23, 2018
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Mar 15, 2018
Decision to grant a European patent
Feb 27, 2018
(Electronic) Receipt
Feb 27, 2018
Filing of the translations of the claims
Feb 27, 2018
French translation of claims
Feb 27, 2018
German translation of the claims
Feb 27, 2018
Letter accompanying subsequently filed items
Nov 6, 2017
Bibliographic data of the European patent application
Nov 6, 2017
Communication about intention to grant a European patent
Nov 6, 2017
Intention to grant (signatures)
Nov 6, 2017
Text intended for grant (clean copy)
Nov 6, 2017
Text intended for grant (version for approval)
Oct 13, 2017
Examination started
Sep 18, 2017
(Electronic) Receipt
Sep 18, 2017
Letter accompanying subsequently filed items
Sep 18, 2017
Maintenance of the application
Apr 11, 2017
Invitation to declare maintenance of the application and to correct deficiencies in the Written Opinion/amend application
Mar 24, 2017
Communication regarding the transmission of the European search report
Mar 24, 2017
European search opinion
Mar 24, 2017
Information on Search Strategy
Mar 24, 2017
Supplementary European search report
Mar 15, 2017
Search started
Aug 10, 2016
Notification of forthcoming publication
Jun 16, 2016
Communication regarding possible amendment of the application/payment of claims fee
Jun 3, 2016
Communication to designated inventor
Jun 3, 2016
Communication to designated inventor
Jun 3, 2016
Communication to designated inventor
Jun 3, 2016
Communication to designated inventor
May 27, 2016
Communication for party to proceedings/third party
May 18, 2016
Copy of the international preliminary report on patentability
May 18, 2016
Translation of the international preliminary report on patentability
May 6, 2016
Submission concerning representation
Apr 28, 2016
(Electronic) Receipt
Apr 28, 2016
Abstract
Apr 28, 2016
Claims
Apr 28, 2016
Description
Apr 28, 2016
Drawings
Apr 28, 2016
Request for entry into the European phase
Apr 28, 2016
Submission concerning representation
Mar 11, 2016
Information on entry into European phase
May 27, 2015
Priority document (electronically transmitted)
May 7, 2015
Copy of the international search report
May 7, 2015
Copy of the translated international search report
May 7, 2015
International publication pamphlet

EP3064810

KABUSHIKI KAISHA RIKEN

Application Number: EP14857089A
Filing Date: Oct 27, 2014
Status: Patent Maintained As Amended; Feb 26, 2021
Publication Date: Mar 31, 2021
External Links: Slate, EP3064810B2, Google Patents

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Piston Ring And Method For Manufacturing Same

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Dossier Documents

EP3064810