Pur/Pir Rigid Foams Based On Aliphatic Polyester Polyols

Patent No. EP1632511 (titled "Pur/Pir Rigid Foams Based On Aliphatic Polyester Polyols") was filed by Bayer on Aug 23, 2005. The application was issued on Aug 14, 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
HUNTSMAN	Apr 6, 2017	VAN DEN BROECK

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 18, 2019
Decision to maintain the European patent in amended form
Jul 18, 2019
Decision to maintain the European patent in amended form
Jul 12, 2019
Termination of the opposition proceedings with maintenance of patent
May 2, 2019
(Electronic) Receipt
May 2, 2019
English translation of the claims
May 2, 2019
Filing of the translation of the amended claims
May 2, 2019
French translation of claims
May 2, 2019
Letter accompanying subsequently filed items
Mar 29, 2019
Communication of bibliographic data
Mar 29, 2019
Communication to opponent concerning maintenance
Mar 29, 2019
Communication with request to file translations
Mar 21, 2019
Maintenance of the patent with the documents specified in the final decision
Dec 28, 2018
Advice of delivery
Dec 11, 2018
(Electronic) Receipt
Dec 11, 2018
Advice of delivery
Dec 11, 2018
Letter accompanying subsequently filed items
Dec 10, 2018
Advice of delivery
Dec 10, 2018
Advice of delivery
Dec 4, 2018
Acknowledgement of a document
Dec 4, 2018
Acknowledgement of a document
Dec 4, 2018
Annex to the communication - opposition
Dec 4, 2018
Decision of the Opposition Division and instruction
Dec 4, 2018
Druckexemplar in opposition procedure
Dec 4, 2018
Grounds for the decision (Annex) - opposition
Dec 4, 2018
Interlocutory decision in opposition proceedings
Dec 4, 2018
Internal form - Opposition/addressees
Dec 4, 2018
Internal form - Opposition/addressees
Dec 4, 2018
Means of redress
Dec 4, 2018
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Dec 4, 2018
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Dec 4, 2018
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Dec 4, 2018
Provision of a copy of the minutes - opposition procedure
Dec 4, 2018
Scanned annex to a communication - opposition procedure
Nov 20, 2018
Information about the result of oral proceedings
Nov 16, 2018
Brief communication - Opposition proceedings
Nov 13, 2018
(Electronic) Receipt
Nov 13, 2018
Letter accompanying subsequently filed items
Nov 13, 2018
Oral proceedings: reply to date proposed
Sep 26, 2018
Brief communication - Opposition proceedings
Sep 26, 2018
Brief communication - Opposition proceedings
Sep 21, 2018
(Electronic) Receipt
Sep 21, 2018
Brief communication - Opposition proceedings
Sep 21, 2018
Letter accompanying subsequently filed items
Sep 21, 2018
Request for interpreters during oral proceedings
Sep 20, 2018
(Electronic) Receipt
Sep 20, 2018
Claims
Sep 20, 2018
Letter accompanying subsequently filed items
Sep 20, 2018
Written submission in preparation to/during oral proceedings
Sep 18, 2018
(Electronic) Receipt
Sep 18, 2018
Letter accompanying subsequently filed items
Sep 18, 2018
Request for interpreters during oral proceedings
Dec 15, 2017
Advice of delivery
Dec 11, 2017
Advice of delivery
Dec 6, 2017
Advice of delivery
Dec 5, 2017
Advice of delivery
Dec 1, 2017
Acknowledgement of a document
Dec 1, 2017
Acknowledgement of a document
Dec 1, 2017
Annex to the communication - opposition
Dec 1, 2017
Information concerning oral proceedings
Dec 1, 2017
Preparation for oral proceedings
Dec 1, 2017
Summons to attend oral proceedings
Dec 1, 2017
Summons to attend oral proceedings
Sep 27, 2017
Brief communication - Opposition proceedings
Sep 27, 2017
Brief communication - Opposition proceedings
Sep 27, 2017
Communication of amended entries
Sep 22, 2017
(Electronic) Receipt
Sep 22, 2017
Amended claims with annotations
Sep 22, 2017
Any annexes (other than citation) to an opposition letter
Sep 22, 2017
Claims
Sep 22, 2017
Letter accompanying subsequently filed items
Sep 22, 2017
Reply of the patent proprietor to the notice(s) of opposition
Sep 21, 2017
(Electronic) Receipt
Sep 21, 2017
Authorisation
Sep 21, 2017
Letter accompanying subsequently filed items
Sep 21, 2017
Request for change of opponent's representative
Sep 21, 2017
Request for change of opponent's representative
May 15, 2017
Communication of a notice of opposition and request to file observations
May 15, 2017
Notice of further oppositions to opponent(s)
Apr 11, 2017
Communication of a notice of opposition - first information to patent proprietor
Apr 6, 2017
(Electronic) Receipt
Apr 6, 2017
Non-patent literature cited during the opposition procedure
Apr 6, 2017
Notice of opposition
Apr 6, 2017
Notice of opposition
Apr 6, 2017
Patent document cited during the opposition procedure
Apr 6, 2017
Patent document cited during the opposition procedure
Apr 6, 2017
Patent document cited during the opposition procedure
Apr 6, 2017
Patent document cited during the opposition procedure
Apr 6, 2017
Patent document cited during the opposition procedure
Apr 6, 2017
Patent document cited during the opposition procedure
Oct 10, 2016
Submission concerning representation
Jul 6, 2016
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Jun 9, 2016
Decision to grant a European patent
May 27, 2016
(Electronic) Receipt
May 27, 2016
English translation of the claims
May 27, 2016
Filing of the translations of the claims
May 27, 2016
French translation of claims
May 27, 2016
Letter accompanying subsequently filed items
Feb 25, 2016
Bibliographic data of the European patent application
Feb 25, 2016
Communication about intention to grant a European patent
Feb 25, 2016
Intention to grant (signatures)
Feb 25, 2016
Text intended for grant
Dec 8, 2015
(Electronic) Receipt
Dec 8, 2015
Amended description with annotations
Dec 8, 2015
Description
Dec 8, 2015
Letter accompanying subsequently filed items
Dec 8, 2015
Reply to communication from the Examining Division
Sep 30, 2015
Communication of amended entries concerning the representative
Sep 30, 2015
Communication of the registration of a transfer or change of name and/or address
Sep 17, 2015
Letter relating to the automatic debiting procedure
Sep 11, 2015
Submission concerning a transfer of rights (applicant)
Aug 27, 2015
Confirmation of revocation of automatic debit order
Aug 17, 2015
Letter relating to the automatic debiting procedure
Aug 5, 2015
Annex to the communication
Aug 5, 2015
Communication from the Examining Division
Jun 11, 2015
CDS Clean up - amended data concerning the representative of the applicant (Association)
Jul 16, 2013
CDS Clean up - amended data concerning the representative of the applicant (Association)
May 24, 2013
Submission concerning change of applicant's representative
May 2, 2013
Communication of the registration of a transfer or change of name and/or address
Apr 16, 2013
Submission concerning a transfer of rights (applicant)
Jun 12, 2010
Claims
Jun 12, 2010
Description
Jun 12, 2010
Reply to communication from the Examining Division
Jun 11, 2010
Claims
Jun 11, 2010
Description
Jun 11, 2010
Reply to communication from the Examining Division
May 3, 2010
Grant of extension of time limit (examination procedure)
Apr 20, 2010
Request for extension of time limit to communication from the Examining Division
Dec 18, 2009
Annex to the communication
Dec 18, 2009
Communication from the Examining Division
Nov 27, 2007
Claims
Nov 27, 2007
Description
Nov 27, 2007
Reply to communication from the Examining Division
Sep 4, 2007
Annex to the communication
Sep 4, 2007
Communication from the Examining Division
Dec 13, 2006
Claims
Dec 13, 2006
Reply to communication from the Examining Division
Oct 17, 2006
Communication from the Examining Division
Jul 21, 2006
Reminder period for payment of examination fee/designation fee and correction of deficiencies in Written Opinion/amendment
Jan 25, 2006
Notification of forthcoming publication
Dec 23, 2005
Communication regarding the transmission of the European search report
Dec 23, 2005
European search opinion
Dec 23, 2005
European search report
Aug 23, 2005
Abstract
Aug 23, 2005
Claims
Aug 23, 2005
Description
Aug 23, 2005
Designation of inventor
Aug 23, 2005
Priority document
Aug 23, 2005
Request for grant of a European patent

EP1632511

BAYER

Application Number: EP05018225A
Filing Date: Aug 23, 2005
Status: Patent Maintained As Amended; Jul 12, 2019
Publication Date: Aug 14, 2019
External Links: Slate, Register , Google Patents

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Pur/Pir Rigid Foams Based On Aliphatic Polyester Polyols

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Dossier Documents

EP1632511