Production Of Polyisocyanurate Foam Panels

Patent No. EP2855549 (titled "Production Of Polyisocyanurate Foam Panels") was filed by DOW on May 22, 2013. The application was issued on Oct 4, 2017.

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	Jun 22, 2018	DAVEPON

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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Apr 7, 2020
Communication to the parties concerning termination of the opposition proceedings - opposition rejected - no appeal lodged
Apr 7, 2020
Communication to the parties concerning the termination of the opposition proceedings (opponent)
Apr 2, 2020
Termination of the opposition proceedings with maintenance of patent
Jan 7, 2020
Advice of delivery
Dec 24, 2019
Advice of delivery
Dec 20, 2019
Acknowledgement of a document
Dec 20, 2019
Acknowledgement of a document
Dec 20, 2019
Annex to the communication - opposition
Dec 20, 2019
Decision of the Opposition Division and instruction
Dec 20, 2019
Decision rejecting the opposition
Dec 20, 2019
Grounds for the decision (Annex) - opposition
Dec 20, 2019
Internal form - Opposition/addressees
Dec 20, 2019
Internal form - Opposition/addressees
Dec 20, 2019
Means of redress
Dec 20, 2019
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Dec 20, 2019
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Dec 20, 2019
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Dec 20, 2019
Provision of a copy of the minutes - opposition procedure
Dec 20, 2019
Scanned annex to a communication - opposition procedure
Nov 27, 2019
Information about the result of oral proceedings
Oct 4, 2019
Brief communication - Opposition proceedings
Sep 27, 2019
(Electronic) Receipt
Sep 27, 2019
Any annexes (other than citation) to an opposition letter
Sep 27, 2019
Letter accompanying subsequently filed items
Sep 27, 2019
Written submission in preparation to/during oral proceedings
Sep 24, 2019
Brief communication - Opposition proceedings
Sep 19, 2019
(Electronic) Receipt
Sep 19, 2019
Letter accompanying subsequently filed items
Sep 19, 2019
Non-patent literature cited during the opposition procedure
Sep 19, 2019
Patent document cited during the opposition procedure
Sep 19, 2019
Written submission in preparation to/during oral proceedings
Aug 20, 2019
Brief communication - Opposition proceedings
Aug 13, 2019
Brief communication - Opposition proceedings
Aug 13, 2019
Communication of amended entries
Aug 13, 2019
Communication of amended entries
Aug 8, 2019
(Electronic) Receipt
Aug 8, 2019
(Electronic) Receipt
Aug 8, 2019
Letter accompanying subsequently filed items
Aug 8, 2019
Request for change of opponent's representative
Aug 8, 2019
Request for interpreters during oral proceedings
Aug 8, 2019
Written submission in preparation to/during oral proceedings
Mar 28, 2019
Submission concerning representation
Feb 21, 2019
Advice of delivery
Feb 20, 2019
Advice of delivery
Feb 11, 2019
Advice of delivery
Feb 7, 2019
Acknowledgement of a document
Feb 7, 2019
Acknowledgement of a document
Feb 7, 2019
Annex to the communication - opposition
Feb 7, 2019
Information concerning oral proceedings
Feb 7, 2019
Summons to attend oral proceedings
Feb 7, 2019
Summons to attend oral proceedings
Nov 19, 2018
Brief communication - Opposition proceedings
Nov 13, 2018
(Electronic) Receipt
Nov 13, 2018
Amended claims with annotations
Nov 13, 2018
Amended claims with annotations
Nov 13, 2018
Amended claims with annotations
Nov 13, 2018
Amended claims with annotations
Nov 13, 2018
Amended claims with annotations
Nov 13, 2018
Amended claims with annotations
Nov 13, 2018
Claims
Nov 13, 2018
Claims
Nov 13, 2018
Claims
Nov 13, 2018
Claims
Nov 13, 2018
Claims
Nov 13, 2018
Claims
Nov 13, 2018
Letter accompanying subsequently filed items
Nov 13, 2018
Reply of the patent proprietor to the notice(s) of opposition
Jul 18, 2018
Communication of a notice of opposition and request to file observations
Jul 18, 2018
Notice of further oppositions to opponent(s)
Jun 27, 2018
Communication of a notice of opposition - first information to patent proprietor
Jun 22, 2018
(Electronic) Receipt
Jun 22, 2018
Letter accompanying subsequently filed items
Jun 22, 2018
Non-patent literature cited during the opposition procedure
Jun 22, 2018
Notice of opposition
Jun 22, 2018
Patent document cited during the opposition procedure
Jun 22, 2018
Patent document cited during the opposition procedure
Dec 13, 2017
Confirmation of revocation of automatic debit order
Dec 8, 2017
Letter relating to the automatic debiting procedure
Oct 12, 2017
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Sep 7, 2017
Decision to grant a European patent
Aug 22, 2017
(Electronic) Receipt
Aug 22, 2017
French translation of claims
Aug 22, 2017
German translation of the claims
Aug 22, 2017
Letter accompanying subsequently filed items
Apr 24, 2017
Bibliographic data of the European patent application
Apr 24, 2017
Communication about intention to grant a European patent
Apr 24, 2017
Intention to grant (signatures)
Apr 24, 2017
Text intended for grant (clean copy)
Apr 24, 2017
Text intended for grant (version for approval)
Jul 16, 2015
(Electronic) Receipt
Jul 16, 2015
Amended claims filed after receipt of (European) search report
Jul 16, 2015
Amended claims with annotations
Jul 16, 2015
Amended description filed after receipt of (European) search report
Jul 16, 2015
Amended description with annotations
Jul 16, 2015
Amendments received before examination
Jul 16, 2015
Letter accompanying subsequently filed items
Mar 11, 2015
Notification on forthcoming publication of bibliographic data
Jan 23, 2015
Communication concerning correction of deficiencies in written opinion/amendment of application/payment of claims fee
Jan 21, 2015
Communication to designated inventor
Jan 21, 2015
Communication to designated inventor
Jan 21, 2015
Communication to designated inventor
Jan 16, 2015
Priority search results copy provided by EPO
Dec 8, 2014
Copy of the international preliminary report on patentability
Oct 29, 2014
(Electronic) Receipt
Oct 29, 2014
Request for entry into the European phase
Oct 6, 2014
Information on entry into European phase
Mar 19, 2014
CDS Clean up - amended applicant details
Dec 19, 2013
Priority document (electronically transmitted)
Nov 28, 2013
Copy of the international search report
Nov 28, 2013
Published international application - A1
Aug 8, 2013
Notification of the recording of a change
Jun 26, 2013
Written opinion of the ISA, boxes No. I to VIII
Jun 26, 2013
Written opinion of the ISA, cover sheet
Jun 26, 2013
Written opinion of the ISA, supplemental box
May 22, 2013
(Electronic) Receipt
May 22, 2013
Abstract
May 22, 2013
Claims
May 22, 2013
Description
May 22, 2013
Priority document (RO-procedure)

EP2855549

DOW

Application Number: EP13726145A
Filing Date: May 22, 2013
Status: Opposition Rejected; Apr 3, 2020
Publication Date: Oct 4, 2017
External Links: Slate, Register , Google Patents

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Production Of Polyisocyanurate Foam Panels

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Dossier Documents

EP2855549