Surfactant Responsive Micro-Gels

Patent No. EP2756051 (titled "Surfactant Responsive Micro-Gels") was filed by Lubrizol Advanced Materials, Inc. on Sep 13, 2012. The application was issued on Jun 12, 2019.

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
AKZO NOBEL CHEMICALS INTERNATIONAL BV	Aug 16, 2016	AKZO NOBEL CHEMICALS GROUP

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, 2019
Decision to maintain the European patent in amended form
May 16, 2019
Decision to maintain the European patent in amended form
May 13, 2019
Termination of the opposition proceedings with maintenance of patent
Apr 25, 2019
(Electronic) Receipt
Apr 25, 2019
French translation of claims
Apr 25, 2019
German translation of the claims
Apr 25, 2019
Letter accompanying subsequently filed items
Jan 23, 2019
Communication to opponent concerning maintenance
Jan 23, 2019
Communication with request to file translations
Jan 11, 2019
Maintenance of the patent with the documents specified in the final decision
Dec 12, 2018
Refund of fees
Nov 23, 2018
F3324 Closure of the appeal proceedings: withdrawal of the appeal/ application/ opposition
Nov 14, 2018
(Electronic) Receipt
Nov 14, 2018
Letter accompanying subsequently filed items
Nov 14, 2018
Withdrawal of an appeal
Oct 5, 2018
F3204 Communication of the file number to the parties
Sep 28, 2018
Processing of an appeal
Sep 24, 2018
(Electronic) Receipt
Sep 24, 2018
Letter accompanying subsequently filed items
Sep 24, 2018
Notice of appeal
Aug 9, 2018
Advice of delivery
Jul 23, 2018
Advice of delivery
Jul 18, 2018
Advice of delivery
Jul 13, 2018
Acknowledgement of a document
Jul 13, 2018
Acknowledgement of a document
Jul 13, 2018
Annex to the communication - opposition
Jul 13, 2018
Decision of the Opposition Division and instruction
Jul 13, 2018
Druckexemplar in opposition procedure
Jul 13, 2018
Grounds for the decision (Annex) - opposition
Jul 13, 2018
Interlocutory decision in opposition proceedings
Jul 13, 2018
Internal form - Opposition/addressees
Jul 13, 2018
Internal form - Opposition/addressees
Jul 13, 2018
Means of redress
Jul 13, 2018
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Jul 13, 2018
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Jul 13, 2018
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Jul 13, 2018
Provision of a copy of the minutes - opposition procedure
Mar 20, 2018
Information about the result of oral proceedings
Mar 12, 2018
Communication concerning the filing of a power of attorney
Mar 12, 2018
Communication of amended entries
Feb 21, 2018
Letter accompanying subsequently filed items
Feb 21, 2018
Request for change of opponent's representative
Jan 24, 2018
Brief communication - Opposition proceedings
Jan 19, 2018
(Electronic) Receipt
Jan 19, 2018
Any annexes (other than citation) to an opposition letter
Jan 19, 2018
Any annexes (other than citation) to an opposition letter
Jan 19, 2018
Brief communication - Opposition proceedings
Jan 19, 2018
Claims
Jan 19, 2018
Claims
Jan 19, 2018
Claims
Jan 19, 2018
Claims
Jan 19, 2018
Letter accompanying subsequently filed items
Jan 19, 2018
Letter regarding the opposition procedure (no time limit)
Jan 16, 2018
(Electronic) Receipt
Jan 16, 2018
Letter accompanying subsequently filed items
Jan 16, 2018
Letter regarding the opposition procedure (no time limit)
Sep 6, 2017
Brief communication - Opposition proceedings
Aug 14, 2017
Advice of delivery
Aug 10, 2017
(Electronic) Receipt
Aug 10, 2017
Letter accompanying subsequently filed items
Aug 10, 2017
Request for interpreters during oral proceedings
Aug 9, 2017
Advice of delivery
Aug 9, 2017
Advice of delivery
Aug 1, 2017
Acknowledgement of a document
Aug 1, 2017
Acknowledgement of a document
Aug 1, 2017
Annex to the communication - opposition
Aug 1, 2017
Information concerning oral proceedings
Aug 1, 2017
Preparation for oral proceedings
Aug 1, 2017
Summons to attend oral proceedings
Aug 1, 2017
Summons to attend oral proceedings
Feb 13, 2017
Brief communication - Opposition proceedings
Feb 8, 2017
(Electronic) Receipt
Feb 8, 2017
Any annexes (other than citation) to an opposition letter
Feb 8, 2017
Claims
Feb 8, 2017
Letter accompanying subsequently filed items
Feb 8, 2017
Reply of the patent proprietor to the notice(s) of opposition
Sep 28, 2016
Communication of a notice of opposition and request to file observations
Sep 28, 2016
Notice of further oppositions to opponent(s)
Aug 25, 2016
Brief communication - Opposition proceedings
Aug 24, 2016
Communication of a notice of opposition - first information to patent proprietor
Aug 18, 2016
Non-patent literature cited during the opposition procedure
Aug 18, 2016
Non-patent literature cited during the opposition procedure
Aug 18, 2016
Notice of opposition
Aug 18, 2016
Patent document cited during the opposition procedure
Aug 18, 2016
Patent document cited during the opposition procedure
Aug 18, 2016
Patent document cited during the opposition procedure
Aug 18, 2016
Patent document cited during the opposition procedure
Aug 18, 2016
Patent document cited during the opposition procedure
Aug 18, 2016
Patent document cited during the opposition procedure
Aug 18, 2016
Patent document cited during the opposition procedure
Aug 18, 2016
Payment of fees and costs
Aug 18, 2016
Translation of the evidence during Opposition procedure
Aug 16, 2016
Non-patent literature cited during the opposition procedure
Aug 16, 2016
Notice of opposition
Aug 16, 2016
Payment of fees and costs
Aug 16, 2016
Payment of fees and costs
May 9, 2016
Submission concerning representation
Apr 22, 2016
Submission concerning representation
Nov 19, 2015
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Oct 22, 2015
Decision to grant a European patent
Aug 18, 2015
(Electronic) Receipt
Aug 18, 2015
Filing of the translations of the claims
Aug 18, 2015
French translation of claims
Aug 18, 2015
German translation of the claims
Aug 18, 2015
Letter accompanying subsequently filed items
Apr 13, 2015
Bibliographic data of the European patent application
Apr 13, 2015
Communication about intention to grant a European patent
Apr 13, 2015
Intention to grant (signatures)
Apr 13, 2015
Text intended for grant
Mar 24, 2015
Examination started
Jul 30, 2014
Communication to designated inventor
Jul 25, 2014
Letter concerning the inventor
Jul 17, 2014
Invitation to indicate correct address of inventor
Jul 3, 2014
Letter which had not been notified
Jun 25, 2014
Notification on forthcoming publication of bibliographic data
Apr 22, 2014
Communication to designated inventor
Apr 22, 2014
Communication to designated inventor
Apr 22, 2014
Communication to designated inventor
Apr 22, 2014
Communication to designated inventor
Apr 22, 2014
Communication to designated inventor
Apr 1, 2014
Submission concerning representation
Mar 25, 2014
(Electronic) Receipt
Mar 25, 2014
Amended claims filed after receipt of (European) search report
Mar 25, 2014
Amended description filed after receipt of (European) search report
Mar 25, 2014
Amendments received before examination
Mar 25, 2014
Annexes to the international preliminary examination report
Mar 25, 2014
Copy of the international preliminary examination report
Mar 25, 2014
Reply to Written Opinion prepared by the EPO
Mar 25, 2014
Request for entry into the European phase
Feb 17, 2014
Notification of the recording of a change
Jan 24, 2014
Information on entry into European phase
Jan 13, 2014
Annex to International preliminary examination report
Jan 13, 2014
International preliminary examination report
Jan 13, 2014
International preliminary examination report - free text sheet
Jan 13, 2014
International preliminary examination report - points I-VIII
Jan 13, 2014
Transmittal of International Preliminary Examination Report
Nov 8, 2013
Notification of the recording of a change
Nov 8, 2013
Notification of the recording of a change
Sep 3, 2013
Notification of election of EPO
Aug 26, 2013
Amendments of documents (Article 19 PCT)
Aug 14, 2013
Written opinion
Aug 14, 2013
Written opinion - free text sheet
Aug 14, 2013
Written opinion - points I-VIII
Jul 15, 2013
Notification of receipt of demand
Jul 6, 2013
PCT demand form
Jul 6, 2013
PCT(IPEA): Amended sheet - claims
Jul 6, 2013
Payment of fees and costs
Apr 9, 2013
Priority document (electronically transmitted)
Apr 9, 2013
Priority document (electronically transmitted)
Apr 9, 2013
Priority document (electronically transmitted)
Mar 21, 2013
Copy of the international search report
Mar 21, 2013
Published international application - A1
Feb 11, 2013
Written opinion of the ISA, boxes No. I to VIII
Feb 11, 2013
Written opinion of the ISA, cover sheet
Feb 11, 2013
Written opinion of the ISA, supplemental box
Sep 24, 2012
Abstract
Sep 24, 2012
Claims
Sep 24, 2012
Description
Sep 24, 2012
Drawings
Sep 24, 2012
Submission concerning representation

EP2756051

LUBRIZOL ADVANCED MATERIALS, INC.

Application Number: EP12769535A
Filing Date: Sep 13, 2012
Status: Patent Maintained As Amended; May 10, 2019
Publication Date: Jun 12, 2019
External Links: Slate, Register , Google Patents

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EP2756051