Method For The Production Of Polyisocyanates

Patent No. EP1928928 (titled "Method For The Production Of Polyisocyanates") was filed by Huntsman on Aug 29, 2006. The application was issued on Feb 21, 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
THE DOW CHEMICAL	Nov 20, 2018	BECK GREENER

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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Mar 17, 2021
Communication to the parties concerning the termination of the opposition proceedings (opponent)
Mar 17, 2021
Communication to the parties concerning the termination of the opposition proceedings (proprietor)
Mar 12, 2021
Termination of the opposition proceedings with revocation of patent
Dec 17, 2020
Advice of delivery
Dec 3, 2020
(Electronic) Receipt
Dec 3, 2020
Advice of delivery
Dec 3, 2020
Letter accompanying subsequently filed items
Nov 30, 2020
Acknowledgement of a document
Nov 30, 2020
Acknowledgement of a document
Nov 30, 2020
Annex to the communication - opposition
Nov 30, 2020
Decision of the Opposition Division and instruction
Nov 30, 2020
Decision revoking the European patent
Nov 30, 2020
Grounds for the decision (Annex) - opposition
Nov 30, 2020
Internal form - Opposition/addressees
Nov 30, 2020
Internal form - Opposition/addressees
Nov 30, 2020
Means of redress
Nov 30, 2020
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Nov 30, 2020
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Nov 30, 2020
Provision of a copy of the minutes - opposition procedure
Nov 30, 2020
Scanned annex to a communication - opposition procedure
Nov 30, 2020
Scanned annex to a communication - opposition procedure
Nov 30, 2020
Scanned annex to a communication - opposition procedure
Nov 30, 2020
Scanned annex to a communication - opposition procedure
Nov 5, 2020
Information about the result of oral proceedings
Nov 4, 2020
Brief communication - Opposition proceedings
Oct 29, 2020
(Electronic) Receipt
Oct 29, 2020
Letter accompanying subsequently filed items
Oct 29, 2020
Priority document
Oct 29, 2020
Written submission in preparation to/during oral proceedings
Oct 27, 2020
Brief communication - Opposition proceedings
Oct 22, 2020
(Electronic) Receipt
Oct 22, 2020
Auxiliary request during Opposition procedure
Oct 22, 2020
Auxiliary request during Opposition procedure
Oct 22, 2020
Auxiliary request during Opposition procedure - 01
Oct 22, 2020
Auxiliary request during Opposition procedure - 02
Oct 22, 2020
Letter accompanying subsequently filed items
Oct 22, 2020
Written submission in preparation to/during oral proceedings
Sep 8, 2020
Brief communication - Opposition proceedings
Sep 3, 2020
Brief communication - Opposition proceedings
Sep 2, 2020
(Electronic) Receipt
Sep 2, 2020
Brief communication - Opposition proceedings
Sep 2, 2020
Letter accompanying subsequently filed items
Sep 2, 2020
Written submission in preparation to/during oral proceedings
Sep 1, 2020
Oral proceedings: reply to date proposed
Aug 31, 2020
(Electronic) Receipt
Aug 31, 2020
Letter accompanying subsequently filed items
Aug 31, 2020
Request for interpreters during oral proceedings
Aug 27, 2020
(Electronic) Receipt
Aug 27, 2020
Auxiliary request during Opposition procedure
Aug 27, 2020
Auxiliary request during Opposition procedure
Aug 27, 2020
Auxiliary request during Opposition procedure
Aug 27, 2020
Auxiliary request during Opposition procedure - 02
Aug 27, 2020
Auxiliary request during Opposition procedure - 03
Aug 27, 2020
Auxiliary request during Opposition procedure - 04
Aug 27, 2020
Letter accompanying subsequently filed items
Aug 27, 2020
Written submission in preparation to/during oral proceedings
May 26, 2020
Advice of delivery
May 21, 2020
(Electronic) Receipt
May 21, 2020
Advice of delivery
May 21, 2020
Letter accompanying subsequently filed items
May 18, 2020
Acknowledgement of a document
May 18, 2020
Acknowledgement of a document
May 18, 2020
Annex to the communication - opposition
May 18, 2020
Information concerning oral proceedings
Apr 29, 2020
Oral proceedings: reply to date proposed
Apr 29, 2020
Oral proceedings: reply to date proposed
Apr 28, 2020
Oral proceedings: reply to date proposed
Apr 6, 2020
(Electronic) Receipt
Apr 6, 2020
Advice of delivery
Apr 6, 2020
Letter accompanying subsequently filed items
Mar 25, 2020
Notification concerning the date of oral proceedings
Mar 25, 2020
Notification concerning the date of oral proceedings
Mar 18, 2020
Brief communication - Opposition proceedings
Mar 18, 2020
Notification concerning the date of oral proceedings
Mar 18, 2020
Notification concerning the date of oral proceedings
Mar 13, 2020
(Electronic) Receipt
Mar 13, 2020
Letter accompanying subsequently filed items
Mar 13, 2020
Written submission in preparation to/during oral proceedings
Mar 11, 2020
(Electronic) Receipt
Mar 11, 2020
Any annexes (other than citation) to an opposition letter
Mar 11, 2020
Letter accompanying subsequently filed items
Mar 11, 2020
Oral proceedings: Request for postponement
Feb 6, 2020
Brief communication - Opposition proceedings
Jan 29, 2020
(Electronic) Receipt
Jan 29, 2020
Brief communication - Opposition proceedings
Jan 29, 2020
Letter accompanying subsequently filed items
Jan 29, 2020
Written submission in preparation to/during oral proceedings
Jan 24, 2020
(Electronic) Receipt
Jan 24, 2020
Auxiliary request during Opposition procedure - 01
Jan 24, 2020
Auxiliary request during Opposition procedure - 01
Jan 24, 2020
Letter accompanying subsequently filed items
Jan 24, 2020
Written submission in preparation to/during oral proceedings
Nov 8, 2019
Brief communication - Opposition proceedings
Nov 5, 2019
(Electronic) Receipt
Nov 5, 2019
Letter accompanying subsequently filed items
Nov 5, 2019
Request for interpreters during oral proceedings
Sep 9, 2019
Annex to the communication - opposition
Sep 9, 2019
Notification concerning the date of oral proceedings
Sep 9, 2019
Notification concerning the date of oral proceedings
Aug 6, 2019
Brief communication - Opposition proceedings
Aug 6, 2019
Brief communication - Opposition proceedings
Aug 1, 2019
(Electronic) Receipt
Aug 1, 2019
Letter accompanying subsequently filed items
Aug 1, 2019
Oral proceedings: Request for postponement
Jul 30, 2019
(Electronic) Receipt
Jul 30, 2019
Letter accompanying subsequently filed items
Jul 30, 2019
Oral proceedings: Request for postponement
Jul 26, 2019
Advice of delivery
Jul 24, 2019
Advice of delivery
Jul 19, 2019
Acknowledgement of a document
Jul 19, 2019
Acknowledgement of a document
Jul 19, 2019
Annex to the communication - opposition
Jul 19, 2019
Information concerning oral proceedings
Jul 19, 2019
Summons to attend oral proceedings
Jul 19, 2019
Summons to attend oral proceedings
Apr 9, 2019
Brief communication - Opposition proceedings
Apr 8, 2019
Communication of amended entries
Apr 3, 2019
(Electronic) Receipt
Apr 3, 2019
Letter accompanying subsequently filed items
Apr 3, 2019
Reply of the patent proprietor to the notice(s) of opposition
Mar 28, 2019
Annexes in respect of a client data request
Mar 28, 2019
Request concerning representative opponent
Jan 3, 2019
Brief communication - Opposition proceedings
Jan 2, 2019
Communication of amended entries concerning the representative
Dec 13, 2018
(Electronic) Receipt
Dec 13, 2018
Authorisation
Dec 13, 2018
Letter accompanying subsequently filed items
Dec 13, 2018
Submission concerning change of applicant's representative
Dec 5, 2018
Communication of a notice of opposition and request to file observations
Dec 5, 2018
Notice of further oppositions to opponent(s)
Nov 27, 2018
Communication of a notice of opposition - first information to patent proprietor
Nov 20, 2018
(Electronic) Receipt
Nov 20, 2018
Consolidated list of cited opposition documents
Nov 20, 2018
Notice of opposition
Nov 20, 2018
Notice of opposition
Mar 9, 2018
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Jan 25, 2018
Decision to grant a European patent
Jan 9, 2018
(Electronic) Receipt
Jan 9, 2018
Filing of the translations of the claims
Jan 9, 2018
French translation of claims
Jan 9, 2018
German translation of the claims
Jan 9, 2018
Letter accompanying subsequently filed items
Nov 17, 2017
Bibliographic data of the European patent application
Nov 17, 2017
Communication about intention to grant a European patent
Nov 17, 2017
Intention to grant (signatures)
Nov 17, 2017
Text intended for grant (clean copy)
Nov 17, 2017
Text intended for grant (version for approval)
Sep 22, 2017
Request for change of applicant's representative
Jun 15, 2017
(Electronic) Receipt
Jun 15, 2017
Amended description with annotations
Jun 15, 2017
Description
Jun 15, 2017
Letter accompanying subsequently filed items
Jun 15, 2017
Reply to communication from the Examining Division
Apr 7, 2017
Annex to the communication
Apr 7, 2017
Communication from the Examining Division
Dec 9, 2016
(Electronic) Receipt
Dec 9, 2016
Amended claims with annotations
Dec 9, 2016
Claims
Dec 9, 2016
Letter accompanying subsequently filed items
Dec 9, 2016
Reply to communication from the Examining Division
Sep 2, 2016
Grant of extension of time limit (examination procedure)
Aug 30, 2016
(Electronic) Receipt
Aug 30, 2016
Letter accompanying subsequently filed items
Aug 30, 2016
Request for extension of time limit to communication from the Examining Division
Jun 9, 2016
Annex to the communication
Jun 9, 2016
Communication from the Examining Division
Feb 12, 2015
(Electronic) Receipt
Feb 12, 2015
Amended claims with annotations
Feb 12, 2015
Claims
Feb 12, 2015
Description
Feb 12, 2015
Letter accompanying subsequently filed items
Feb 12, 2015
Reply to communication from the Examining Division
Dec 15, 2014
Grant of extension of time limit (examination procedure)
Dec 10, 2014
(Electronic) Receipt
Dec 10, 2014
Letter accompanying subsequently filed items
Dec 10, 2014
Request for extension of time limit to communication from the Examining Division
Aug 12, 2014
Annex to the communication
Aug 12, 2014
Communication from the Examining Division
Mar 25, 2010
(Electronic) Receipt
Mar 25, 2010
Claims
Mar 25, 2010
Letter accompanying subsequently filed items
Mar 25, 2010
Reply to communication from the Examining Division
Dec 17, 2009
Grant of extension of time limit (examination procedure)
Dec 14, 2009
(Electronic) Receipt
Dec 14, 2009
Letter accompanying subsequently filed items
Dec 14, 2009
Request for extension of time limit to communication from the Examining Division
Oct 7, 2009
Annex to the communication
Oct 7, 2009
Communication from the Examining Division
May 15, 2008
Notification on forthcoming publication of bibliographic data
May 14, 2008
Communication regarding possible amendment of claims/payment of claims fees
Apr 18, 2008
Copy of the international preliminary report on patentability
Apr 14, 2008
Copy of the international preliminary report on patentability
Feb 27, 2008
Notification of the recording of a change
Feb 27, 2008
Notification of the recording of a change
Feb 15, 2008
Information on entry into European phase
Feb 14, 2008
(Electronic) Receipt
Feb 14, 2008
Letter concerning the inventor
Feb 14, 2008
Request for entry into the European phase
May 2, 2007
Priority document (electronically transmitted)
Apr 12, 2007
Copy of the international search report
Apr 12, 2007
Published international application - A1
Aug 29, 2006
Abstract
Aug 29, 2006
Claims
Aug 29, 2006
Description
Aug 29, 2006
Drawings

EP1928928

HUNTSMAN

Application Number: EP06793066A
Filing Date: Aug 29, 2006
Status: Revoked; Mar 19, 2021
Publication Date: Feb 21, 2018
External Links: Slate, Register , Google Patents

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Method For The Production Of Polyisocyanates

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Dossier Documents

EP1928928