Dispersants

Patent No. EP2953711 (titled "Dispersants") was filed by Croda on Feb 7, 2014. The application was issued on Jul 18, 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
BYK CHEMIE	Apr 17, 2019	ALTANA DEPARTMENT

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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Apr 17, 2020
Communication to the parties concerning the termination of the opposition proceedings (opponent)
Apr 17, 2020
Communication to the parties concerning the termination of the opposition proceedings (proprietor)
Apr 14, 2020
Termination of the opposition proceedings with revocation of patent
Jan 7, 2020
Advice of delivery
Jan 7, 2020
Advice of delivery
Jan 2, 2020
Acknowledgement of a document
Jan 2, 2020
Acknowledgement of a document
Jan 2, 2020
Decision of the Opposition Division and instruction
Jan 2, 2020
Decision revoking the European patent
Jan 2, 2020
Grounds for the decision (Annex) - opposition
Jan 2, 2020
Internal form - Opposition/addressees
Jan 2, 2020
Means of redress
May 9, 2019
Communication of a notice of opposition and request to file observations
May 9, 2019
Notice of further oppositions to opponent(s)
Apr 25, 2019
Communication of a notice of opposition - first information to patent proprietor
Apr 18, 2019
Consolidated list of cited opposition documents
Apr 17, 2019
(Electronic) Receipt
Apr 17, 2019
Citation in opposition procedure
Apr 17, 2019
Citation in opposition procedure
Apr 17, 2019
Citation in opposition procedure
Apr 17, 2019
Citation in opposition procedure
Apr 17, 2019
Letter accompanying subsequently filed items
Apr 17, 2019
Notice of opposition
Apr 17, 2019
Notice of opposition
Apr 17, 2019
Patent document cited during the opposition procedure
Jul 30, 2018
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Jun 21, 2018
Decision to grant a European patent
Jun 8, 2018
(Electronic) Receipt
Jun 8, 2018
Filing of the translations of the claims
Jun 8, 2018
French translation of claims
Jun 8, 2018
German translation of the claims
Jun 8, 2018
Letter accompanying subsequently filed items
May 4, 2018
Bibliographic data of the European patent application
May 4, 2018
Communication about intention to grant a European patent
May 4, 2018
Intention to grant (signatures)
May 4, 2018
Text intended for grant (clean copy)
May 4, 2018
Text intended for grant (version for approval)
Apr 5, 2018
Examination started
Mar 16, 2016
(Electronic) Receipt
Mar 16, 2016
Amended claims filed after receipt of (European) search report
Mar 16, 2016
Amended claims with annotations
Mar 16, 2016
Amendments received before examination
Mar 16, 2016
Letter accompanying subsequently filed items
Nov 18, 2015
Notification on forthcoming publication of bibliographic data
Sep 18, 2015
Communication concerning correction of deficiencies in written opinion/amendment of application/payment of claims fee
Sep 16, 2015
Communication to designated inventor
Sep 16, 2015
Communication to designated inventor
Sep 16, 2015
Communication to designated inventor
Aug 25, 2015
Copy of the international preliminary report on patentability
Jul 31, 2015
(Electronic) Receipt
Jul 31, 2015
Request for entry into the European phase
Jun 19, 2015
Information on entry into European phase
Sep 2, 2014
Priority document (electronically transmitted)
Aug 14, 2014
Copy of the international search report
Aug 14, 2014
Published international application - A1
May 27, 2014
Written opinion of the ISA, boxes No. I to VIII
May 27, 2014
Written opinion of the ISA, cover sheet
May 27, 2014
Written opinion of the ISA, supplemental box

EP2953711

CRODA

Application Number: EP14705941A
Filing Date: Feb 7, 2014
Status: Revoked; Apr 17, 2020
Publication Date: Jul 18, 2018
External Links: Slate, Register , Google Patents

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EP2953711