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IP Verse

Method For The Production Of Polyisocyanates - EP1928928

The patent EP1928928 was granted to Huntsman on Feb 21, 2018. The application was filed on Aug 29, 2006 under application number EP06793066A. The patent is currently recorded with a legal status of "Revoked".

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

Patent Summary

Patent Family

Patent Oppositions

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	Opposition Status
THE DOW CHEMICAL	Nov 20, 2018	BECK GREENER	-

Patent Citations (13) New

Patent citations refer to prior patents cited during different phases such as opposition or international search.

Citation Phase	Publication Number
INTERNATIONAL-SEARCH-REPORT	GB1133668
INTERNATIONAL-SEARCH-REPORT	US3287387
INTERNATIONAL-SEARCH-REPORT	US5925783
INTERNATIONAL-SEARCH-REPORT	WO2004058689
INTERNATIONAL-SEARCH-REPORT	WO9616028
OPPOSITION	GB1133668
OPPOSITION	US3287387
OPPOSITION	US3544611
OPPOSITION	US4405527
OPPOSITION	WO2004056759
OPPOSITION	WO2004058689
OPPOSITION	WO2006022641
OPPOSITION	WO9616028

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