Polyisocyanate-Based Binder

Patent No. EP2646488 (titled "Polyisocyanate-Based Binder") was filed by Huntsman on Nov 24, 2011. The application was issued on Oct 31, 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
COVESTRO DEUTSCHLAND	May 12, 2016	MICHALSKI HUTTERMANN & PARTNER PATENTANWALTE MBB

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

Get instant alerts for new documents

Oct 5, 2018
Decision to maintain the European patent in amended form
Oct 5, 2018
Decision to maintain the European patent in amended form
Sep 28, 2018
Druckexemplar in opposition procedure
Sep 28, 2018
Termination of the opposition proceedings with maintenance of patent
Sep 10, 2018
(Electronic) Receipt
Sep 10, 2018
Clean copy of claims in the opposition procedure
Sep 10, 2018
Clean copy of description pages in the opposition procedure
Sep 10, 2018
French translation of claims
Sep 10, 2018
German translation of the claims
Sep 10, 2018
Letter accompanying subsequently filed items
Sep 10, 2018
Letter regarding the opposition procedure (no time limit)
Jul 26, 2018
Brief communication - Opposition proceedings
Jul 26, 2018
Communication confirming withdrawal from representation
Jul 26, 2018
Communication of amended entries concerning the representative
Jul 26, 2018
Miscellaneous requests concerning client data
Jul 20, 2018
(Electronic) Receipt
Jul 20, 2018
(Electronic) Receipt
Jul 20, 2018
Letter accompanying subsequently filed items
Jul 20, 2018
Submission concerning change of applicant's representative
Jul 5, 2018
Communication of bibliographic data
Jul 5, 2018
Communication to opponent concerning maintenance
Jul 5, 2018
Communication with request to file translations
Jun 26, 2018
Maintenance of the patent with the documents specified in the final decision
Apr 23, 2018
Advice of delivery
Apr 9, 2018
Advice of delivery
Mar 20, 2018
Advice of delivery
Mar 19, 2018
Advice of delivery
Mar 14, 2018
Acknowledgement of a document
Mar 14, 2018
Acknowledgement of a document
Mar 14, 2018
Annex to the communication - opposition
Mar 14, 2018
Decision of the Opposition Division and instruction
Mar 14, 2018
Grounds for the decision (Annex) - opposition
Mar 14, 2018
Interlocutory decision in opposition proceedings
Mar 14, 2018
Internal form - Opposition/addressees
Mar 14, 2018
Internal form - Opposition/addressees
Mar 14, 2018
Means of redress
Mar 14, 2018
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Mar 14, 2018
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Mar 14, 2018
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Mar 14, 2018
OPPODREX with handwritten amendments
Mar 14, 2018
Provision of a copy of the minutes - opposition procedure
Mar 14, 2018
Scanned annex to a communication - opposition procedure
Feb 7, 2018
Brief communication - Opposition proceedings
Feb 7, 2018
Information about the result of oral proceedings
Feb 1, 2018
(Electronic) Receipt
Feb 1, 2018
Amended claims with annotations
Feb 1, 2018
Amended claims with annotations
Feb 1, 2018
Amended claims with annotations
Feb 1, 2018
Amended claims with annotations
Feb 1, 2018
Amended claims with annotations
Feb 1, 2018
Amended claims with annotations
Feb 1, 2018
Brief communication - Opposition proceedings
Feb 1, 2018
Brief communication - Opposition proceedings
Feb 1, 2018
Claims
Feb 1, 2018
Claims
Feb 1, 2018
Claims
Feb 1, 2018
Claims
Feb 1, 2018
Claims
Feb 1, 2018
Claims
Feb 1, 2018
Claims
Feb 1, 2018
Letter accompanying subsequently filed items
Feb 1, 2018
Letter regarding the opposition procedure (no time limit)
Dec 13, 2017
Brief communication - Opposition proceedings
Dec 6, 2017
Letter regarding the opposition procedure (no time limit)
Dec 6, 2017
Patent document cited during the opposition procedure
Dec 6, 2017
Patent document cited during the opposition procedure
Dec 6, 2017
Patent document cited during the opposition procedure
Dec 6, 2017
Patent document cited during the opposition procedure
Dec 6, 2017
Request for interpreters during oral proceedings
Nov 16, 2017
Brief communication - Opposition proceedings
Nov 16, 2017
Brief communication - Opposition proceedings
Nov 16, 2017
Communication concerning the filing of a power of attorney
Nov 16, 2017
Communication of amended entries
Nov 16, 2017
Communication of amended entries concerning the representative
Nov 6, 2017
Communication of amended entries concerning the representative
Oct 27, 2017
Request for change of opponent's representative
Oct 26, 2017
Communication of amended entries concerning the representative
Oct 20, 2017
Communication of amended entries concerning the representative
Oct 20, 2017
Submission concerning change of applicant's representative
Oct 17, 2017
Authorisation
Oct 17, 2017
Request for change of opponent's representative
Sep 22, 2017
Request for change of applicant's representative
Apr 11, 2017
Advice of delivery
Mar 16, 2017
Advice of delivery
Mar 9, 2017
Acknowledgement of a document
Mar 9, 2017
Acknowledgement of a document
Mar 9, 2017
Annex to the communication - opposition
Mar 9, 2017
Information concerning oral proceedings
Mar 9, 2017
Preparation for oral proceedings
Mar 9, 2017
Summons to attend oral proceedings
Mar 9, 2017
Summons to attend oral proceedings
Dec 23, 2016
Brief communication - Opposition proceedings
Dec 20, 2016
Any annexes (other than citation) to an opposition letter
Dec 20, 2016
Reply of the patent proprietor to the notice(s) of opposition
Oct 6, 2016
Grant of extension of time limit (opposition procedure)
Oct 3, 2016
Request for extension of time limit
Jun 20, 2016
Communication of a notice of opposition and request to file observations
Jun 20, 2016
Notice of further oppositions to opponent(s)
May 20, 2016
Communication of a notice of opposition - first information to patent proprietor
May 12, 2016
Letter accompanying subsequently filed items
May 12, 2016
Non-patent literature cited during the opposition procedure
May 12, 2016
Notice of opposition
May 12, 2016
Patent document cited during the opposition procedure
May 12, 2016
Patent document cited during the opposition procedure
May 12, 2016
Patent document cited during the opposition procedure
May 12, 2016
Patent document cited during the opposition procedure
May 12, 2016
Patent document cited during the opposition procedure
May 12, 2016
Patent document cited during the opposition procedure
May 12, 2016
Patent document cited during the opposition procedure
Aug 13, 2015
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Jul 16, 2015
Decision to grant a European patent
Jul 3, 2015
(Electronic) Receipt
Jul 3, 2015
Filing of the translations of the claims
Jul 3, 2015
French translation of claims
Jul 3, 2015
German translation of the claims
Jul 3, 2015
Letter accompanying subsequently filed items
Apr 23, 2015
Bibliographic data of the European patent application
Apr 23, 2015
Communication about intention to grant a European patent
Apr 23, 2015
Intention to grant (signatures)
Apr 23, 2015
Text intended for grant (clean copy)
Apr 23, 2015
Text intended for grant (version for approval)
Jun 27, 2014
(Electronic) Receipt
Jun 27, 2014
Claims
Jun 27, 2014
Letter accompanying subsequently filed items
Jun 27, 2014
Reply to communication from the Examining Division
Apr 11, 2014
Annex to the communication
Apr 11, 2014
Communication from the Examining Division
Jan 23, 2014
Copy of the international preliminary report on patentability
Jan 7, 2014
(Electronic) Receipt
Jan 7, 2014
Amended claims filed after receipt of (European) search report
Jan 7, 2014
Amendments received before examination
Jan 7, 2014
Letter accompanying subsequently filed items
Sep 11, 2013
Notification on forthcoming publication of bibliographic data
Jul 12, 2013
Communication regarding comments on written opinion/amendment of application/payment of claims fee
Jul 10, 2013
Communication to designated inventor
Jul 10, 2013
Communication to designated inventor
Jul 10, 2013
Communication to designated inventor
Jul 6, 2013
Priority search results copy provided by EPO
Apr 25, 2013
(Electronic) Receipt
Apr 25, 2013
Amended claims filed after receipt of (European) search report
Apr 25, 2013
Amendments received before examination
Apr 25, 2013
Request for entry into the European phase
Apr 12, 2013
Information on entry into European phase
Jun 27, 2012
Priority document (electronically transmitted)
Jun 7, 2012
Copy of the international search report
Jun 7, 2012
Published international application - A1
Feb 24, 2012
Written opinion of the ISA, boxes No. I to VIII
Feb 24, 2012
Written opinion of the ISA, cover sheet
Feb 24, 2012
Written opinion of the ISA, supplemental box
Nov 24, 2011
(Electronic) Receipt
Nov 24, 2011
Abstract
Nov 24, 2011
Claims
Nov 24, 2011
Description
Nov 24, 2011
Priority document (RO-procedure)

EP2646488

HUNTSMAN

Application Number: EP11790756A
Filing Date: Nov 24, 2011
Status: Patent Maintained As Amended; Sep 28, 2018
Publication Date: Oct 31, 2018
External Links: Slate, Register , Google Patents

IP Verse

Polyisocyanate-Based Binder

Patent Summary

Patent Family

Patent Oppositions

Dossier Documents

EP2646488