Method To Prevent Discoloration Of Colored Liquids

Patent No. EP2931862 (titled "Method To Prevent Discoloration Of Colored Liquids") was filed by Henkel on Dec 9, 2013. The application was issued on Apr 29, 2020.

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
UNILEVER UNILEVER UNILEVER	Dec 21, 2020	BROOIJMANS

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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Nov 8, 2022
Communication to the parties concerning the termination of the opposition proceedings (opponent)
Nov 8, 2022
Communication to the parties concerning the termination of the opposition proceedings (proprietor)
Nov 3, 2022
Termination of the opposition proceedings with revocation of patent
Jul 28, 2022
Advice of delivery
Jul 25, 2022
(Electronic) Receipt
Jul 25, 2022
Advice of delivery
Jul 25, 2022
Annex to the communication - opposition
Jul 25, 2022
Decision of the Opposition Division and instruction
Jul 25, 2022
Decision revoking the European patent
Jul 25, 2022
Decision revoking the European patent
Jul 25, 2022
Grounds for the decision (Annex) - opposition
Jul 25, 2022
Letter accompanying subsequently filed items
Jul 25, 2022
Means of redress
Jul 25, 2022
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Jul 25, 2022
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Jul 25, 2022
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Jul 25, 2022
Provision of a copy of the minutes - opposition procedure
Jul 25, 2022
Provision of a copy of the minutes - opposition procedure
Jul 25, 2022
Scanned annex to a communication - opposition procedure
Jul 25, 2022
Transmittal of decision / summons - opposition
Jul 25, 2022
Transmittal of decision / summons - opposition
May 12, 2022
Brief communication - Opposition proceedings
May 10, 2022
Information about the result of oral proceedings
May 9, 2022
(Electronic) Receipt
May 9, 2022
Letter accompanying subsequently filed items
May 9, 2022
Written submission in preparation to/during oral proceedings
Apr 29, 2022
Brief communication - Opposition proceedings
Apr 22, 2022
(Electronic) Receipt
Apr 22, 2022
Letter accompanying subsequently filed items
Apr 22, 2022
Written submission in preparation to/during oral proceedings
Mar 23, 2022
Brief communication - Opposition proceedings
Mar 18, 2022
Brief communication - Opposition proceedings
Mar 15, 2022
(Electronic) Receipt
Mar 15, 2022
Citation in opposition procedure - 014
Mar 15, 2022
Letter accompanying subsequently filed items
Mar 15, 2022
Written submission in preparation to/during oral proceedings
Mar 10, 2022
(Electronic) Receipt
Mar 10, 2022
Citation in opposition procedure
Mar 10, 2022
Citation in opposition procedure - 011
Mar 10, 2022
Citation in opposition procedure - 012
Mar 10, 2022
Citation in opposition procedure - 013
Mar 10, 2022
Citation in opposition procedure - 015
Mar 10, 2022
Citation in opposition procedure - 016
Mar 10, 2022
Citation in opposition procedure - 017
Mar 10, 2022
Consolidated list of cited opposition documents
Mar 10, 2022
Letter accompanying subsequently filed items
Mar 10, 2022
Written submission in preparation to/during oral proceedings
Feb 7, 2022
Brief communication - Opposition proceedings
Feb 2, 2022
Notification concerning the date of oral proceedings
Feb 2, 2022
Notification concerning the date of oral proceedings
Feb 1, 2022
(Electronic) Receipt
Feb 1, 2022
Letter accompanying subsequently filed items
Feb 1, 2022
Oral proceedings: reply to date proposed
Oct 21, 2021
Advice of delivery
Oct 14, 2021
(Electronic) Receipt
Oct 14, 2021
Advice of delivery
Oct 14, 2021
Annex to the communication - opposition
Oct 14, 2021
Information concerning oral proceedings
Oct 14, 2021
Letter accompanying subsequently filed items
Oct 14, 2021
Summons to attend oral proceedings
Oct 14, 2021
Summons to attend oral proceedings
Oct 14, 2021
Transmittal of decision / summons - opposition
Oct 14, 2021
Transmittal of decision / summons - opposition
Mar 19, 2021
Letter accompanying subsequently filed items
Mar 19, 2021
Submission concerning change of applicant's representative
Mar 15, 2021
Brief communication - Opposition proceedings
Mar 5, 2021
(Electronic) Receipt
Mar 5, 2021
Auxiliary request during Opposition procedure
Mar 5, 2021
Auxiliary request during Opposition procedure - 01
Mar 5, 2021
Letter accompanying subsequently filed items
Mar 5, 2021
Reply of the patent proprietor to the notice(s) of opposition
Feb 26, 2021
Annexes in respect of a client data request
Feb 26, 2021
Letter accompanying subsequently filed items
Feb 26, 2021
Submission concerning representation
Feb 12, 2021
Communication of a notice of opposition and request to file observations
Feb 12, 2021
Notice of further oppositions to opponent(s)
Jan 11, 2021
Communication of a notice of opposition - first information to patent proprietor
Dec 21, 2020
(Electronic) Receipt
Dec 21, 2020
(Electronic) Receipt
Dec 21, 2020
(Electronic) Receipt
Dec 21, 2020
(Electronic) Receipt
Dec 21, 2020
Citation in opposition procedure - 001
Dec 21, 2020
Citation in opposition procedure - 002
Dec 21, 2020
Citation in opposition procedure - 003
Dec 21, 2020
Citation in opposition procedure - 004
Dec 21, 2020
Citation in opposition procedure - 005
Dec 21, 2020
Citation in opposition procedure - 006
Dec 21, 2020
Citation in opposition procedure - 007
Dec 21, 2020
Citation in opposition procedure - 008
Dec 21, 2020
Citation in opposition procedure - 009
Dec 21, 2020
Citation in opposition procedure - 010
Dec 21, 2020
Letter accompanying subsequently filed items
Dec 21, 2020
Letter accompanying subsequently filed items
Dec 21, 2020
Letter accompanying subsequently filed items
Dec 21, 2020
Letter accompanying subsequently filed items
Dec 21, 2020
Notice of opposition
Dec 21, 2020
Notice of opposition
May 11, 2020
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Apr 2, 2020
Decision to grant a European patent
Mar 19, 2020
(Electronic) Receipt
Mar 19, 2020
Filing of the translations of the claims
Mar 19, 2020
French translation of claims
Mar 19, 2020
German translation of the claims
Dec 13, 2019
Bibliographic data of the European patent application
Dec 13, 2019
Communication about intention to grant a European patent
Dec 13, 2019
Intention to grant (signatures)
Dec 13, 2019
Text intended for grant (clean copy)
Dec 13, 2019
Text intended for grant (version for approval)
Sep 19, 2018
(Electronic) Receipt
Sep 19, 2018
Amended claims with annotations
Sep 19, 2018
Claims
Sep 19, 2018
Description
Sep 19, 2018
Letter accompanying subsequently filed items
Sep 19, 2018
Reply to communication from the Examining Division
May 23, 2018
Annex to the communication
May 23, 2018
Communication from the Examining Division
May 16, 2018
Examination started
Jan 3, 2018
Notification regarding date of start of examination with possibility to withdraw
Feb 24, 2016
CDS Clean up - amended applicant details
Feb 23, 2016
Submission concerning change of applicant's address
Jan 18, 2016
Amended claims filed after receipt of (European) search report
Jan 18, 2016
Amended claims with annotations
Jan 18, 2016
Amended description filed after receipt of (European) search report
Jan 18, 2016
Amended description with annotations
Jan 18, 2016
Amendments received before examination
Jan 13, 2016
Amended claims filed after receipt of (European) search report
Jan 13, 2016
Amended claims with annotations
Jan 13, 2016
Amended description filed after receipt of (European) search report
Jan 13, 2016
Amended description with annotations
Jan 13, 2016
Amendments received before examination
Sep 23, 2015
Notification on forthcoming publication of bibliographic data
Jul 24, 2015
Communication concerning correction of deficiencies in written opinion/amendment of application/payment of claims fee
Jul 22, 2015
Communication to designated inventor
Jul 22, 2015
Communication to designated inventor
Jul 7, 2015
Copy of the international preliminary report on patentability
Jun 16, 2015
(Electronic) Receipt
Jun 16, 2015
Request for entry into the European phase
May 4, 2015
Information on entry into European phase
Jul 17, 2014
Priority document (electronically transmitted)
Jun 26, 2014
Copy of the international search report
Jun 26, 2014
Published international application - A1
Apr 16, 2014
Written opinion of the ISA, boxes No. I to VIII
Apr 16, 2014
Written opinion of the ISA, cover sheet
Apr 16, 2014
Written opinion of the ISA, supplemental box
Dec 9, 2013
(Electronic) Receipt
Dec 9, 2013
Abstract
Dec 9, 2013
Claims
Dec 9, 2013
Description

EP2931862

HENKEL

Application Number: EP13802950A
Filing Date: Dec 9, 2013
Status: Revoked; Nov 4, 2022
Publication Date: Apr 29, 2020
External Links: Slate, Register , Google Patents

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Method To Prevent Discoloration Of Colored Liquids

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Dossier Documents

EP2931862