Lubricant Composition

Patent No. EP2154231 (titled "Lubricant Composition") was filed by Idemitsu Kosan on Mar 24, 2008. The application was issued on Feb 21, 2018.

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
INFINEUM	Nov 21, 2018	HART

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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Feb 10, 2025
Brief communication - Opposition proceedings
Feb 10, 2025
Brief communication - Opposition proceedings
Feb 10, 2025
Grounds for the decision (Annex) - opposition
Feb 10, 2025
Interlocutory decision in opposition proceedings
Feb 10, 2025
Interlocutory decision in opposition proceedings
Feb 10, 2025
Means of redress
Feb 10, 2025
OPPODREX with handwritten amendments
Feb 6, 2025
Decision of the Opposition Division and instruction
Nov 6, 2024
Brief communication - Opposition proceedings
Oct 29, 2024
(Electronic) Receipt
Oct 29, 2024
Description
Oct 29, 2024
Letter accompanying subsequently filed items
Oct 29, 2024
Reply to an examination report in opposition proceedings
Sep 11, 2024
Annex to the communication - opposition
Sep 11, 2024
Brief communication - Opposition proceedings
Sep 11, 2024
Brief communication - Opposition proceedings
Sep 11, 2024
Communication inviting the parties to file observations
Sep 11, 2024
Communication inviting the parties to file observations
Aug 28, 2024
Brief communication - Opposition proceedings
Aug 21, 2024
(Electronic) Receipt
Aug 21, 2024
Letter accompanying subsequently filed items
Aug 21, 2024
Reply to an examination report in opposition proceedings
Aug 16, 2024
Brief communication - Opposition proceedings
Aug 12, 2024
(Electronic) Receipt
Aug 12, 2024
Letter accompanying subsequently filed items
Aug 12, 2024
Reply to an examination report in opposition proceedings
Jun 21, 2024
Annex to the communication - opposition
Jun 21, 2024
Brief communication - Opposition proceedings
Jun 21, 2024
Brief communication - Opposition proceedings
Jun 21, 2024
Communication inviting the parties to file observations
Jun 21, 2024
Communication inviting the parties to file observations
Jun 21, 2024
Scanned annex to a communication - opposition procedure
May 27, 2024
Decision of the Board of Appeal
May 27, 2024
F3032 Notification(s) of the decision
May 27, 2024
F3032 Notification(s) of the decision
Apr 30, 2024
F3013 Oral Proceedings: Forwarding minutes
Apr 30, 2024
F3013 Oral Proceedings: Forwarding minutes
Apr 30, 2024
F3316 Oral Proceedings: Minutes (Appellant: Opponent)
Apr 16, 2024
(Electronic) Receipt
Apr 16, 2024
Letter accompanying subsequently filed items
Mar 25, 2024
F3345 Forwarding of submissions to parties
Mar 22, 2024
(Electronic) Receipt
Mar 22, 2024
Letter accompanying subsequently filed items
Mar 22, 2024
Request for interpreters during oral proceedings
Dec 19, 2023
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Dec 19, 2023
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Aug 7, 2023
F3022 Oral proceedings: change of board composition
Aug 7, 2023
F3022 Oral proceedings: change of board composition
Aug 2, 2023
F3303.16 Change of composition of the Board (T)
Jun 6, 2023
F3011.2 Oral Proceedings: Summons VICO
Jun 6, 2023
F3011.2 Oral Proceedings: Summons VICO
Jun 1, 2023
F3010 Oral proceedings: order for summons
Apr 6, 2022
F3345 Forwarding of submissions to parties
Apr 1, 2022
(Electronic) Receipt
Apr 1, 2022
Letter accompanying subsequently filed items
Apr 1, 2022
Reply to appeal
Nov 24, 2021
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Nov 20, 2021
Composition of the board (T)
Nov 19, 2021
(Electronic) Receipt
Nov 19, 2021
Letter accompanying subsequently filed items
Nov 19, 2021
Statement of grounds of appeal
Sep 22, 2021
F3345 Forwarding of submissions to parties
Sep 17, 2021
(Electronic) Receipt
Sep 17, 2021
Letter accompanying subsequently filed items
Sep 17, 2021
Letter relating to Appeal Procedure
Sep 16, 2021
F3204 Communication of the file number to the parties
Sep 16, 2021
F3204 Communication of the file number to the parties
Sep 10, 2021
(Electronic) Receipt
Sep 10, 2021
Letter accompanying subsequently filed items
Sep 10, 2021
Notice of appeal
Jul 15, 2021
(Electronic) Receipt
Jul 15, 2021
Advice of delivery
Jul 15, 2021
Letter accompanying subsequently filed items
Jul 13, 2021
Advice of delivery
Jul 12, 2021
Annex to the communication - opposition
Jul 12, 2021
Decision of the Opposition Division and instruction
Jul 12, 2021
Druckexemplar in opposition procedure
Jul 12, 2021
Grounds for the decision (Annex) - opposition
Jul 12, 2021
Interlocutory decision in opposition proceedings
Jul 12, 2021
Interlocutory decision in opposition proceedings
Jul 12, 2021
Means of redress
Jul 12, 2021
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Jul 12, 2021
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Jul 12, 2021
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Jul 12, 2021
Provision of a copy of the minutes - opposition procedure
Jul 12, 2021
Provision of a copy of the minutes - opposition procedure
Jul 12, 2021
Transmittal of decision / summons - opposition
Jul 12, 2021
Transmittal of decision / summons - opposition
Jun 14, 2021
Information about the result of oral proceedings
Apr 20, 2021
Brief communication - Opposition proceedings
Apr 16, 2021
Brief communication - Opposition proceedings
Apr 14, 2021
(Electronic) Receipt
Apr 14, 2021
Letter accompanying subsequently filed items
Apr 14, 2021
Written submission in preparation to/during oral proceedings
Apr 13, 2021
(Electronic) Receipt
Apr 13, 2021
Letter accompanying subsequently filed items
Feb 16, 2021
Notification concerning the date of oral proceedings
Feb 16, 2021
Notification concerning the date of oral proceedings
Feb 5, 2021
(Electronic) Receipt
Feb 5, 2021
Advice of delivery
Feb 5, 2021
Letter accompanying subsequently filed items
Jan 28, 2021
Communication about missing advice of delivery
Dec 1, 2020
Advice of delivery
Nov 23, 2020
Acknowledgement of a document
Nov 23, 2020
Acknowledgement of a document
Nov 23, 2020
Annex to the communication - opposition
Nov 23, 2020
Information concerning oral proceedings
Nov 23, 2020
Summons to attend oral proceedings
Nov 23, 2020
Summons to attend oral proceedings
Nov 11, 2020
(Electronic) Receipt
Nov 11, 2020
Advice of delivery
Nov 11, 2020
Letter accompanying subsequently filed items
Oct 30, 2020
Advice of delivery
Oct 27, 2020
Brief communication - Opposition proceedings
Oct 27, 2020
Notification concerning the date of oral proceedings
Oct 27, 2020
Notification concerning the date of oral proceedings
Oct 21, 2020
(Electronic) Receipt
Oct 21, 2020
Letter accompanying subsequently filed items
Oct 21, 2020
Oral proceedings: reply to date proposed
Sep 22, 2020
Notification concerning the date of oral proceedings
Sep 22, 2020
Notification concerning the date of oral proceedings
Jul 8, 2020
Communication about missing advice of delivery
Jul 6, 2020
(Electronic) Receipt
Jul 6, 2020
Advice of delivery
Jul 6, 2020
Letter accompanying subsequently filed items
Jun 8, 2020
Advice of delivery
Jun 3, 2020
Acknowledgement of a document
Jun 3, 2020
Acknowledgement of a document
Jun 3, 2020
Information concerning oral proceedings
Jun 3, 2020
Summons to attend oral proceedings
Jun 3, 2020
Summons to attend oral proceedings
May 11, 2020
Advice of delivery
May 6, 2020
Brief communication - Opposition proceedings
May 6, 2020
Notification concerning the date of oral proceedings
May 6, 2020
Notification concerning the date of oral proceedings
Apr 30, 2020
Brief communication - Opposition proceedings
Apr 30, 2020
Brief communication - Opposition proceedings
Apr 29, 2020
(Electronic) Receipt
Apr 29, 2020
Letter accompanying subsequently filed items
Apr 29, 2020
Oral proceedings: reply to date proposed
Apr 27, 2020
(Electronic) Receipt
Apr 27, 2020
Letter accompanying subsequently filed items
Apr 27, 2020
Oral proceedings: Request for postponement
Apr 24, 2020
(Electronic) Receipt
Apr 24, 2020
Letter accompanying subsequently filed items
Apr 24, 2020
Oral proceedings: Request for postponement
Mar 17, 2020
Brief communication - Opposition proceedings
Mar 17, 2020
Brief communication - Opposition proceedings
Mar 6, 2020
(Electronic) Receipt
Mar 6, 2020
(Electronic) Receipt
Mar 6, 2020
Amended description with annotations
Mar 6, 2020
Amended description with annotations
Mar 6, 2020
Amended description with annotations
Mar 6, 2020
Amended description with annotations
Mar 6, 2020
Amended description with annotations
Mar 6, 2020
Amended description with annotations
Mar 6, 2020
Amended description with annotations
Mar 6, 2020
Amended description with annotations
Mar 6, 2020
Amended description with annotations
Mar 6, 2020
Amended description with annotations
Mar 6, 2020
Amended description with annotations
Mar 6, 2020
Amended description with annotations
Mar 6, 2020
Amended description with annotations
Mar 6, 2020
Amended description with annotations
Mar 6, 2020
Amended description with annotations
Mar 6, 2020
Amended description with annotations
Mar 6, 2020
Amended description with annotations
Mar 6, 2020
Amended description with annotations
Mar 6, 2020
Auxiliary request during Opposition procedure
Mar 6, 2020
Auxiliary request during Opposition procedure
Mar 6, 2020
Auxiliary request during Opposition procedure
Mar 6, 2020
Auxiliary request during Opposition procedure
Mar 6, 2020
Auxiliary request during Opposition procedure
Mar 6, 2020
Auxiliary request during Opposition procedure
Mar 6, 2020
Auxiliary request during Opposition procedure
Mar 6, 2020
Auxiliary request during Opposition procedure
Mar 6, 2020
Auxiliary request during Opposition procedure
Mar 6, 2020
Auxiliary request during Opposition procedure
Mar 6, 2020
Auxiliary request during Opposition procedure - 09
Mar 6, 2020
Auxiliary request during Opposition procedure - 10
Mar 6, 2020
Auxiliary request during Opposition procedure - 11
Mar 6, 2020
Auxiliary request during Opposition procedure - 12
Mar 6, 2020
Auxiliary request during Opposition procedure - 13
Mar 6, 2020
Auxiliary request during Opposition procedure - 14
Mar 6, 2020
Auxiliary request during Opposition procedure - 15
Mar 6, 2020
Auxiliary request during Opposition procedure - 16
Mar 6, 2020
Auxiliary request during Opposition procedure - 17
Mar 6, 2020
Auxiliary request during Opposition procedure - 18
Mar 6, 2020
Citation in opposition procedure - 005
Mar 6, 2020
Citation in opposition procedure - 006
Mar 6, 2020
Citation in opposition procedure - 007
Mar 6, 2020
Consolidated list of cited opposition documents
Mar 6, 2020
Letter accompanying subsequently filed items
Mar 6, 2020
Letter accompanying subsequently filed items
Mar 6, 2020
Written submission in preparation to/during oral proceedings
Mar 6, 2020
Written submission in preparation to/during oral proceedings
Oct 15, 2019
(Electronic) Receipt
Oct 15, 2019
Advice of delivery
Oct 15, 2019
Letter accompanying subsequently filed items
Sep 20, 2019
Advice of delivery
Sep 19, 2019
Advice of delivery
Sep 18, 2019
Acknowledgement of a document
Sep 18, 2019
Acknowledgement of a document
Sep 18, 2019
Annex to the communication - opposition
Sep 18, 2019
Information concerning oral proceedings
Sep 18, 2019
Summons to attend oral proceedings
Sep 18, 2019
Summons to attend oral proceedings
Apr 17, 2019
Brief communication - Opposition proceedings
Apr 12, 2019
(Electronic) Receipt
Apr 12, 2019
Auxiliary request during Opposition procedure
Apr 12, 2019
Auxiliary request during Opposition procedure
Apr 12, 2019
Auxiliary request during Opposition procedure
Apr 12, 2019
Auxiliary request during Opposition procedure
Apr 12, 2019
Auxiliary request during Opposition procedure
Apr 12, 2019
Auxiliary request during Opposition procedure
Apr 12, 2019
Auxiliary request during Opposition procedure
Apr 12, 2019
Auxiliary request during Opposition procedure
Apr 12, 2019
Auxiliary request during Opposition procedure - 01
Apr 12, 2019
Auxiliary request during Opposition procedure - 02
Apr 12, 2019
Auxiliary request during Opposition procedure - 03
Apr 12, 2019
Auxiliary request during Opposition procedure - 04
Apr 12, 2019
Auxiliary request during Opposition procedure - 05
Apr 12, 2019
Auxiliary request during Opposition procedure - 06
Apr 12, 2019
Auxiliary request during Opposition procedure - 07
Apr 12, 2019
Auxiliary request during Opposition procedure - 08
Apr 12, 2019
Letter accompanying subsequently filed items
Apr 12, 2019
Reply of the patent proprietor to the notice(s) of opposition
Dec 5, 2018
Brief communication - Opposition proceedings
Dec 5, 2018
Communication of a notice of opposition and request to file observations
Dec 5, 2018
Notice of further oppositions to opponent(s)
Nov 28, 2018
(Electronic) Receipt
Nov 28, 2018
Letter accompanying subsequently filed items
Nov 28, 2018
Letter regarding the opposition procedure (no time limit)
Nov 26, 2018
Communication of a notice of opposition - first information to patent proprietor
Nov 21, 2018
(Electronic) Receipt
Nov 21, 2018
Citation in opposition procedure - 001
Nov 21, 2018
Citation in opposition procedure - 002
Nov 21, 2018
Citation in opposition procedure - 003
Nov 21, 2018
Citation in opposition procedure - 004
Nov 21, 2018
Notice of opposition
Nov 21, 2018
Notice of opposition
Mar 9, 2018
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Jan 25, 2018
Decision to grant a European patent
Jan 5, 2018
(Electronic) Receipt
Jan 5, 2018
Filing of the translations of the claims
Jan 5, 2018
French translation of claims
Jan 5, 2018
German translation of the claims
Jan 5, 2018
Letter accompanying subsequently filed items
Sep 28, 2017
Bibliographic data of the European patent application
Sep 28, 2017
Communication about intention to grant a European patent
Sep 28, 2017
Intention to grant (signatures)
Sep 28, 2017
Text intended for grant (clean copy)
Sep 28, 2017
Text intended for grant (version for approval)
Jun 22, 2017
Claims
Jun 22, 2017
Reply to communication from the Examining Division
Feb 16, 2017
Annex to the communication
Feb 16, 2017
Communication from the Examining Division
Feb 9, 2017
Examination started
Sep 26, 2014
Submission concerning representation
May 7, 2013
Amended claims filed after receipt of (European) search report
May 7, 2013
Amended claims with annotations
May 7, 2013
Amended description filed after receipt of (European) search report
May 7, 2013
Amendments received before examination
Jan 22, 2013
Invitation to declare maintenance of the application and to correct deficiencies in the Written Opinion/amend application
Jan 4, 2013
Communication regarding the transmission of the European search report
Jan 4, 2013
European search opinion
Jan 4, 2013
Supplementary European search report
Jun 10, 2010
CDS Clean up - amended data concerning the representative of the applicant (Association)
Jan 26, 2010
Amended description filed after receipt of (European) search report
Jan 26, 2010
Amendments received before examination
Jan 20, 2010
Notification of forthcoming publication
Dec 17, 2009
Communication regarding possible amendment of claims/payment of claims fees
Nov 24, 2009
Translation of the international preliminary report on patentability
Oct 20, 2009
Copy of the international preliminary report on patentability
Oct 6, 2009
Abstract
Oct 6, 2009
Claims
Oct 6, 2009
Description
Oct 6, 2009
Patent document cited during the examination procedure
Oct 6, 2009
Request for entry into the European phase
Aug 13, 2009
Information on entry into European phase
Oct 29, 2008
Priority document (electronically transmitted)
Oct 9, 2008
Copy of the international search report
Oct 9, 2008
Copy of the translated international search report
Oct 9, 2008
International publication pamphlet

EP2154231

IDEMITSU KOSAN

Application Number: EP08738771A
Filing Date: Mar 24, 2008
Status: Granted And Under Opposition; Jan 19, 2018
Publication Date: Feb 21, 2018
External Links: Slate, Register , Google Patents

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Lubricant Composition

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Dossier Documents

EP2154231