Dispersant Composition

Patent No. EP2771418 (titled "Dispersant Composition") was filed by Lubrizol Advanced Materials on Oct 25, 2012. The application was issued on Dec 29, 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
AECHTER	Jan 4, 2019	TER MEER STEINMEISTER & PARTNER

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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May 16, 2022
Letter relating to refund instructions (deposit account)
Dec 2, 2021
Decision to maintain the European patent in amended form
Dec 2, 2021
Decision to maintain the European patent in amended form
Nov 26, 2021
Termination of the opposition proceedings with maintenance of patent
Nov 23, 2021
(Electronic) Receipt
Nov 23, 2021
French translation of claims
Nov 23, 2021
German translation of the claims
Nov 23, 2021
Letter accompanying subsequently filed items
Aug 26, 2021
Communication of bibliographic data
Aug 26, 2021
Communication to opponent concerning maintenance
Aug 26, 2021
Communication with request to file translations
Aug 19, 2021
Maintenance of the patent with the documents specified in the final decision
Aug 12, 2021
Maintenance of the patent with the documents specified in the final decision
Jul 2, 2021
Communication of amended entries concerning the representative
Jun 28, 2021
Authorisation
Jun 28, 2021
Letter accompanying subsequently filed items
Jun 28, 2021
Submission concerning change of applicant's representative
May 17, 2021
Advice of delivery
May 6, 2021
(Electronic) Receipt
May 6, 2021
Advice of delivery
May 6, 2021
Letter accompanying subsequently filed items
May 3, 2021
Decision of the Opposition Division and instruction
May 3, 2021
Druckexemplar in opposition procedure
May 3, 2021
Grounds for the decision (Annex) - opposition
May 3, 2021
Interlocutory decision in opposition proceedings
May 3, 2021
Internal form - Opposition/addressees
May 3, 2021
Means of redress
May 3, 2021
Scanned annex to a communication - opposition procedure
May 3, 2021
Transmittal of decision / summons - opposition
May 3, 2021
Transmittal of decision / summons - opposition
Nov 2, 2020
(Electronic) Receipt
Nov 2, 2020
Letter accompanying subsequently filed items
Nov 2, 2020
Reply to an examination report in opposition proceedings
Sep 2, 2020
Annex to the communication - opposition
Sep 2, 2020
Communication inviting the parties to file observations
Sep 2, 2020
Communication inviting the parties to file observations
Sep 2, 2020
Internal form - Opposition/addressees
Aug 28, 2020
Communication inviting the parties to file observations
Jul 7, 2020
(Electronic) Receipt
Jul 7, 2020
Amended description with annotations
Jul 7, 2020
Description
Jul 7, 2020
Letter accompanying subsequently filed items
Jul 7, 2020
Reply to an examination report in opposition proceedings
Apr 30, 2020
(Electronic) Receipt
Apr 30, 2020
Advice of delivery
Apr 30, 2020
Annex to the communication - opposition
Apr 30, 2020
Communication inviting the parties to file observations
Apr 30, 2020
Communication inviting the parties to file observations
Apr 30, 2020
Internal form - Opposition/addressees
Apr 30, 2020
Letter accompanying subsequently filed items
Apr 27, 2020
Advice of delivery
Apr 24, 2020
Communication inviting the parties to file observations
Apr 22, 2020
Notification concerning the date of oral proceedings
Apr 22, 2020
Notification concerning the date of oral proceedings
Apr 16, 2020
Brief communication - Opposition proceedings
Apr 15, 2020
Brief communication - Opposition proceedings
Apr 8, 2020
(Electronic) Receipt
Apr 8, 2020
(Electronic) Receipt
Apr 8, 2020
Amended description with annotations
Apr 8, 2020
Amended description with annotations
Apr 8, 2020
Amended description with annotations
Apr 8, 2020
Amended description with annotations
Apr 8, 2020
Auxiliary request during Opposition procedure
Apr 8, 2020
Auxiliary request during Opposition procedure
Apr 8, 2020
Auxiliary request during Opposition procedure
Apr 8, 2020
Auxiliary request during Opposition procedure
Apr 8, 2020
Auxiliary request during Opposition procedure
Apr 8, 2020
Auxiliary request during Opposition procedure
Apr 8, 2020
Auxiliary request during Opposition procedure
Apr 8, 2020
Auxiliary request during Opposition procedure
Apr 8, 2020
Auxiliary request during Opposition procedure
Apr 8, 2020
Auxiliary request during Opposition procedure - 05
Apr 8, 2020
Auxiliary request during Opposition procedure - 08
Apr 8, 2020
Auxiliary request during Opposition procedure - 09
Apr 8, 2020
Auxiliary request during Opposition procedure - 10
Apr 8, 2020
Auxiliary request during Opposition procedure - 11
Apr 8, 2020
Auxiliary request during Opposition procedure - 12
Apr 8, 2020
Auxiliary request during Opposition procedure - 13
Apr 8, 2020
Auxiliary request during Opposition procedure - 14
Apr 8, 2020
Auxiliary request during Opposition procedure - 15
Apr 8, 2020
Description
Apr 8, 2020
Description
Apr 8, 2020
Description
Apr 8, 2020
Description
Apr 8, 2020
Letter accompanying subsequently filed items
Apr 8, 2020
Letter accompanying subsequently filed items
Apr 8, 2020
Request for interpreters during oral proceedings
Apr 8, 2020
Written submission in preparation to/during oral proceedings
Mar 2, 2020
(Electronic) Receipt
Mar 2, 2020
Letter accompanying subsequently filed items
Mar 2, 2020
Written submission in preparation to/during oral proceedings
Jan 3, 2020
Advice of delivery
Dec 6, 2019
Advice of delivery
Dec 6, 2019
Communication about missing advice of delivery
Dec 6, 2019
Cover sheet for fax transmission
Oct 8, 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
Sep 18, 2019
Information about the result of oral proceedings
May 30, 2019
(Electronic) Receipt
May 30, 2019
Amended claims with annotations
May 30, 2019
Amended claims with annotations
May 30, 2019
Amended claims with annotations
May 30, 2019
Amended claims with annotations
May 30, 2019
Amended claims with annotations
May 30, 2019
Amended claims with annotations
May 30, 2019
Amended claims with annotations
May 30, 2019
Amended claims with annotations
May 30, 2019
Claims
May 30, 2019
Claims
May 30, 2019
Claims
May 30, 2019
Claims
May 30, 2019
Claims
May 30, 2019
Claims
May 30, 2019
Claims
May 30, 2019
Claims
May 30, 2019
Letter accompanying subsequently filed items
May 30, 2019
Reply of the patent proprietor to the notice(s) of opposition
Jan 23, 2019
Communication of a notice of opposition and request to file observations
Jan 23, 2019
Notice of further oppositions to opponent(s)
Jan 9, 2019
Communication of a notice of opposition - first information to patent proprietor
Jan 4, 2019
(Electronic) Receipt
Jan 4, 2019
Citation in opposition procedure
Jan 4, 2019
Notice of opposition
Jan 4, 2019
Notice of opposition
Jan 4, 2019
Patent document cited during the opposition procedure
Jan 4, 2019
Patent document cited during the opposition procedure
Jan 4, 2019
Patent document cited during the opposition procedure
Jan 4, 2019
Patent document cited during the opposition procedure
Jan 4, 2019
Patent document cited during the opposition procedure
Jan 4, 2019
Patent document cited during the opposition procedure
Jan 4, 2019
Patent document cited during the opposition procedure
Jan 4, 2019
Patent document cited during the opposition procedure
May 10, 2018
Submission concerning representation
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 23, 2018
Bibliographic data of the European patent application
Feb 23, 2018
Information about intention to grant a patent
Feb 23, 2018
Intention to grant (signatures)
Feb 23, 2018
Text intended for grant (clean copy)
Feb 23, 2018
Text intended for grant (version for approval)
Feb 22, 2018
Processing of request for correction of text proposed for grant or third party observations (from 01-04-2012)
Feb 14, 2018
Processing of request for correction of text proposed for grant or third party observations (from 01-04-2012)
Feb 9, 2018
(Electronic) Receipt
Feb 9, 2018
Amended description with annotations
Feb 9, 2018
Description
Feb 9, 2018
French translation of claims
Feb 9, 2018
German translation of the claims
Feb 9, 2018
Letter accompanying subsequently filed items
Feb 9, 2018
Request for correction/amendment of the text proposed for grant sent from 01.04.2012
Oct 11, 2017
Bibliographic data of the European patent application
Oct 11, 2017
Communication about intention to grant a European patent
Oct 11, 2017
Intention to grant (signatures)
Oct 11, 2017
Text intended for grant (clean copy)
Oct 11, 2017
Text intended for grant (version for approval)
Sep 22, 2017
Examination started
Jun 16, 2017
Notification regarding date of start of examination with possibility to withdraw
Nov 6, 2015
Communication of amended entries concerning the representative
Oct 23, 2015
Submission concerning change of applicant's representative
Dec 19, 2014
(Electronic) Receipt
Dec 19, 2014
Amended claims filed after receipt of (European) search report
Dec 19, 2014
Amended claims with annotations
Dec 19, 2014
Amendments received before examination
Dec 19, 2014
Letter accompanying subsequently filed items
Aug 6, 2014
Notification on forthcoming publication of bibliographic data
Jun 23, 2014
Communication concerning correction of deficiencies in written opinion/amendment of application/payment of claims fee
Jun 18, 2014
Communication to designated inventor
Jun 18, 2014
Communication to designated inventor
Jun 18, 2014
Communication to designated inventor
May 1, 2014
Copy of the international preliminary report on patentability
Apr 30, 2014
(Electronic) Receipt
Apr 30, 2014
Request for entry into the European phase
Mar 10, 2014
Information on entry into European phase
Aug 1, 2013
Copy of the international search report
Aug 1, 2013
International publication of the international search report
May 24, 2013
Priority document (electronically transmitted)
May 24, 2013
Written opinion of the ISA, boxes No. I to VIII
May 24, 2013
Written opinion of the ISA, cover sheet
May 24, 2013
Written opinion of the ISA, supplemental box
May 2, 2013
Published international application - A2
Nov 5, 2012
Abstract
Nov 5, 2012
Claims
Nov 5, 2012
Description
Nov 5, 2012
Submission concerning representation

EP2771418

LUBRIZOL ADVANCED MATERIALS

Application Number: EP12784191A
Filing Date: Oct 25, 2012
Status: Patent Maintained As Amended; Nov 26, 2021
Publication Date: Dec 29, 2021
External Links: Slate, Register , Google Patents

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Dossier Documents

EP2771418