A Process For Dry-Grinding A Polysaccharide Derivative

Patent No. EP2598557 (titled "A Process For Dry-Grinding A Polysaccharide Derivative") was filed by DOW on Jul 28, 2010. The application was issued on Mar 20, 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
TYLOSE & COKG	Dec 18, 2019	PLATE

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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Jul 22, 2021
Communication to the parties concerning termination of the opposition proceedings - opposition rejected - no appeal lodged
Jul 22, 2021
Communication to the parties concerning the termination of the opposition proceedings (opponent)
Jul 19, 2021
Termination of the opposition proceedings with maintenance of patent
Apr 15, 2021
Advice of delivery
Apr 13, 2021
Advice of delivery
Apr 7, 2021
Annex to the communication - opposition
Apr 7, 2021
Decision of the Opposition Division and instruction
Apr 7, 2021
Decision rejecting the opposition
Apr 7, 2021
Grounds for the decision (Annex) - opposition
Apr 7, 2021
Internal form - Opposition/addressees
Apr 7, 2021
Internal form - Opposition/addressees
Apr 7, 2021
Means of redress
Apr 7, 2021
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Apr 7, 2021
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Apr 7, 2021
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Apr 7, 2021
Provision of a copy of the minutes - opposition procedure
Apr 7, 2021
Transmittal of decision / summons - opposition
Apr 7, 2021
Transmittal of decision / summons - opposition
Mar 10, 2021
Information about the result of oral proceedings
Feb 18, 2021
Notification concerning the date of oral proceedings
Feb 18, 2021
Notification concerning the date of oral proceedings
Feb 15, 2021
(Electronic) Receipt
Feb 15, 2021
Brief communication - Opposition proceedings
Feb 9, 2021
(Electronic) Receipt
Feb 9, 2021
Auxiliary request during Opposition procedure
Feb 9, 2021
Auxiliary request during Opposition procedure
Feb 9, 2021
Auxiliary request during Opposition procedure
Feb 9, 2021
Auxiliary request during Opposition procedure
Feb 9, 2021
Auxiliary request during Opposition procedure
Feb 9, 2021
Auxiliary request during Opposition procedure
Feb 9, 2021
Auxiliary request during Opposition procedure - 01
Feb 9, 2021
Auxiliary request during Opposition procedure - 03
Feb 9, 2021
Auxiliary request during Opposition procedure - 05
Feb 9, 2021
Auxiliary request during Opposition procedure - 07
Feb 9, 2021
Auxiliary request during Opposition procedure - 09
Feb 9, 2021
Auxiliary request during Opposition procedure - 11
Feb 9, 2021
Letter accompanying subsequently filed items
Feb 9, 2021
Written submission in preparation to/during oral proceedings
Jan 25, 2021
Consolidated list of cited opposition documents
Jan 14, 2021
Brief communication - Opposition proceedings
Jan 8, 2021
(Electronic) Receipt
Jan 8, 2021
Citation in opposition procedure - 005
Jan 8, 2021
Citation in opposition procedure - 006
Jan 8, 2021
Letter accompanying subsequently filed items
Jan 8, 2021
Oral proceedings: reply to date proposed
Jan 8, 2021
Written submission in preparation to/during oral proceedings
Dec 18, 2020
Brief communication - Opposition proceedings
Dec 15, 2020
(Electronic) Receipt
Dec 15, 2020
Letter accompanying subsequently filed items
Dec 15, 2020
Oral proceedings: reply to date proposed
Oct 13, 2020
Brief communication - Opposition proceedings
Oct 8, 2020
(Electronic) Receipt
Oct 8, 2020
Letter accompanying subsequently filed items
Oct 8, 2020
Oral proceedings: reply to date proposed
Jul 29, 2020
Notification concerning the date of oral proceedings
Jul 29, 2020
Notification concerning the date of oral proceedings
Jun 22, 2020
Advice of delivery
Jun 17, 2020
Advice of delivery
Jun 11, 2020
Acknowledgement of a document
Jun 11, 2020
Acknowledgement of a document
Jun 10, 2020
Acknowledgement of a document
Jun 10, 2020
Acknowledgement of a document
Jun 10, 2020
Annex to the communication - opposition
Jun 10, 2020
Information concerning oral proceedings
Jun 10, 2020
Summons to attend oral proceedings
Jun 10, 2020
Summons to attend oral proceedings
Jun 3, 2020
Brief communication - Opposition proceedings
May 28, 2020
(Electronic) Receipt
May 28, 2020
Auxiliary request during Opposition procedure
May 28, 2020
Auxiliary request during Opposition procedure
May 28, 2020
Auxiliary request during Opposition procedure
May 28, 2020
Auxiliary request during Opposition procedure
May 28, 2020
Auxiliary request during Opposition procedure
May 28, 2020
Auxiliary request during Opposition procedure
May 28, 2020
Auxiliary request during Opposition procedure
May 28, 2020
Auxiliary request during Opposition procedure
May 28, 2020
Auxiliary request during Opposition procedure
May 28, 2020
Auxiliary request during Opposition procedure
May 28, 2020
Auxiliary request during Opposition procedure
May 28, 2020
Auxiliary request during Opposition procedure - 01
May 28, 2020
Auxiliary request during Opposition procedure - 02
May 28, 2020
Auxiliary request during Opposition procedure - 03
May 28, 2020
Auxiliary request during Opposition procedure - 04
May 28, 2020
Auxiliary request during Opposition procedure - 05
May 28, 2020
Auxiliary request during Opposition procedure - 06
May 28, 2020
Auxiliary request during Opposition procedure - 07
May 28, 2020
Auxiliary request during Opposition procedure - 08
May 28, 2020
Auxiliary request during Opposition procedure - 09
May 28, 2020
Auxiliary request during Opposition procedure - 10
May 28, 2020
Auxiliary request during Opposition procedure - 11
May 28, 2020
Letter accompanying subsequently filed items
May 28, 2020
Reply of the patent proprietor to the notice(s) of opposition
Jan 20, 2020
Communication of a notice of opposition and request to file observations
Jan 20, 2020
Notice of further oppositions to opponent(s)
Jan 3, 2020
Communication of a notice of opposition - first information to patent proprietor
Dec 18, 2019
(Electronic) Receipt
Dec 18, 2019
Citation in opposition procedure - 001
Dec 18, 2019
Citation in opposition procedure - 002
Dec 18, 2019
Citation in opposition procedure - 003
Dec 18, 2019
Citation in opposition procedure - 004
Dec 18, 2019
International publication (Pamphlet)
Dec 18, 2019
Notice of opposition
Dec 18, 2019
Notice of opposition
Apr 1, 2019
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Feb 21, 2019
Decision to grant a European patent
Feb 12, 2019
Bibliographic data of the European patent application
Feb 12, 2019
Information about intention to grant a patent
Feb 12, 2019
Intention to grant (signatures)
Feb 12, 2019
Text intended for grant (clean copy)
Feb 12, 2019
Text intended for grant (version for approval)
Jan 25, 2019
(Electronic) Receipt
Jan 25, 2019
Amended claims with annotations
Jan 25, 2019
Claims
Jan 25, 2019
French translation of claims
Jan 25, 2019
German translation of the claims
Jan 25, 2019
Letter accompanying subsequently filed items
Jan 25, 2019
Request for correction/amendment of the text proposed for grant sent from 01.04.2012
Sep 18, 2018
Bibliographic data of the European patent application
Sep 18, 2018
Communication about intention to grant a European patent
Sep 18, 2018
Intention to grant (signatures)
Sep 18, 2018
Text intended for grant (clean copy)
Sep 18, 2018
Text intended for grant (version for approval)
Jul 9, 2018
(Electronic) Receipt
Jul 9, 2018
Amended description with annotations
Jul 9, 2018
Description
Jul 9, 2018
Letter accompanying subsequently filed items
Jul 9, 2018
Reply to communication from the Examining Division
Mar 28, 2018
Annex to the communication
Mar 28, 2018
Communication from the Examining Division
Dec 28, 2017
(Electronic) Receipt
Dec 28, 2017
Amended claims with annotations
Dec 28, 2017
Claims
Dec 28, 2017
Letter accompanying subsequently filed items
Dec 28, 2017
Reply to communication from the Examining Division
Sep 6, 2017
Annex to the communication
Sep 6, 2017
Communication from the Examining Division
Aug 30, 2017
Examination started
Dec 16, 2013
Submission concerning representation
Sep 14, 2013
Amended claims filed after receipt of (European) search report
Sep 14, 2013
Amendments received before examination
Sep 14, 2013
Non-patent literature cited during the examination procedure
May 8, 2013
Notification on forthcoming publication of bibliographic data
May 2, 2013
Communication of amended entries concerning the representative
Apr 26, 2013
Communication of amended entries concerning the representative
Apr 19, 2013
Submission concerning change of applicant's representative
Apr 17, 2013
Submission concerning change of applicant's representative
Mar 28, 2013
Communication concerning correction of deficiencies in written opinion/amendment of application/payment of claims fee
Mar 5, 2013
Communication to designated inventor
Mar 5, 2013
Communication to designated inventor
Mar 5, 2013
Communication to designated inventor
Feb 13, 2013
Copy of the international preliminary report on patentability
Apr 3, 2012
Information regarding early processing
Mar 21, 2012
Request for entry into the European phase
Feb 2, 2012
Copy of the international search report
Feb 2, 2012
Published international application - A1
Apr 18, 2011
Written opinion of the ISA, boxes No. I to VIII
Apr 18, 2011
Written opinion of the ISA, cover sheet
Apr 18, 2011
Written opinion of the ISA, supplemental box
Aug 5, 2010
Abstract
Aug 5, 2010
Claims
Aug 5, 2010
Description

EP2598557

DOW

Application Number: EP10740476A
Filing Date: Jul 28, 2010
Status: Opposition Rejected; Jul 23, 2021
Publication Date: Mar 20, 2019
External Links: Slate, Register , Google Patents

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A Process For Dry-Grinding A Polysaccharide Derivative

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Dossier Documents

EP2598557