Improved Epoxy Systems For Composites

Patent No. EP2433985 (titled "Improved Epoxy Systems For Composites") was filed by Hexion Research Belgium on Jun 21, 2011. The application was issued on Apr 1, 2020.

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
BASF	Dec 18, 2020	-

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

Sep 18, 2023
Communication to the parties concerning the termination of the opposition proceedings (opponent)
Sep 18, 2023
Communication to the parties concerning the termination of the opposition proceedings (proprietor)
Sep 13, 2023
Termination of the opposition proceedings with revocation of patent
Jul 13, 2023
(Electronic) Receipt
Jul 13, 2023
Advice of delivery
Jul 5, 2023
Communication about missing advice of delivery
Jun 6, 2023
Advice of delivery
Jun 5, 2023
Advice of delivery
Jun 2, 2023
Decision revoking the European patent
Jun 2, 2023
Decision revoking the European patent
Jun 2, 2023
Grounds for the decision (Annex) - opposition
Jun 2, 2023
Means of redress
Jun 2, 2023
Transmittal of decision / summons - opposition
May 31, 2023
Decision of the Opposition Division and instruction
Mar 29, 2023
Notification concerning the date of oral proceedings
Mar 29, 2023
Notification concerning the date of oral proceedings
Jan 20, 2023
Brief communication - Opposition proceedings
Jan 16, 2023
(Electronic) Receipt
Jan 16, 2023
Citation in opposition procedure - 011
Jan 16, 2023
Citation in opposition procedure - 012
Jan 16, 2023
Consolidated list of cited opposition documents
Jan 16, 2023
Letter accompanying subsequently filed items
Jan 16, 2023
Written submission in preparation to/during oral proceedings
Dec 19, 2022
Brief communication - Opposition proceedings
Dec 14, 2022
(Electronic) Receipt
Dec 14, 2022
Letter accompanying subsequently filed items
Dec 14, 2022
Written submission in preparation to/during oral proceedings
Dec 13, 2022
Notification concerning the date of oral proceedings
Dec 13, 2022
Notification concerning the date of oral proceedings
Nov 4, 2022
Communication of the registration of a transfer or change of name and/or address
Oct 26, 2022
Annexes in respect of a client data request
Oct 26, 2022
Letter accompanying subsequently filed items
Oct 26, 2022
Submission concerning a transfer of rights (applicant)
Sep 7, 2022
Indication of deficiencies in a request for registering a transfer of rights and invitation to correct them
Aug 29, 2022
(Electronic) Receipt
Aug 29, 2022
Letter accompanying subsequently filed items
Aug 29, 2022
Miscellaneous requests concerning client data
Aug 29, 2022
Submission concerning a transfer of rights (applicant)
Aug 26, 2022
(Electronic) Receipt
Aug 26, 2022
Annexes in respect of a client data request
Aug 26, 2022
Annexes in respect of a client data request
Aug 26, 2022
Annexes in respect of a client data request
Aug 26, 2022
Annexes in respect of a client data request
Aug 26, 2022
Letter accompanying subsequently filed items
Aug 26, 2022
Letter accompanying subsequently filed items
Aug 26, 2022
Submission concerning a transfer of rights (applicant)
Aug 4, 2022
(Electronic) Receipt
Aug 4, 2022
Advice of delivery
Aug 4, 2022
Letter accompanying subsequently filed items
Aug 1, 2022
Advice of delivery
Jul 28, 2022
Annex to the communication - opposition
Jul 28, 2022
Information concerning oral proceedings
Jul 28, 2022
Summons to attend oral proceedings
Jul 28, 2022
Summons to attend oral proceedings
Jul 28, 2022
Transmittal of decision / summons - opposition
Jul 28, 2022
Transmittal of decision / summons - opposition
Jul 28, 2021
Brief communication - Opposition proceedings
Jul 28, 2021
Rejection of request for extension of time limit
Jul 22, 2021
Communication of amended entries concerning the representative
Jul 19, 2021
Result of consultation by telephone/in person
Jul 16, 2021
(Electronic) Receipt
Jul 16, 2021
Authorisation
Jul 16, 2021
Letter accompanying subsequently filed items
Jul 16, 2021
Request for extension of time limit
Jan 28, 2021
Communication of a notice of opposition and request to file observations
Jan 28, 2021
Notice of further oppositions to opponent(s)
Jan 12, 2021
Communication of a notice of opposition - first information to patent proprietor
Dec 18, 2020
(Electronic) Receipt
Dec 18, 2020
Citation in opposition procedure
Dec 18, 2020
Citation in opposition procedure - 001
Dec 18, 2020
Citation in opposition procedure - 002
Dec 18, 2020
Citation in opposition procedure - 003
Dec 18, 2020
Citation in opposition procedure - 004
Dec 18, 2020
Citation in opposition procedure - 005
Dec 18, 2020
Citation in opposition procedure - 006
Dec 18, 2020
Citation in opposition procedure - 007
Dec 18, 2020
Citation in opposition procedure - 008
Dec 18, 2020
Citation in opposition procedure - 009
Dec 18, 2020
Citation in opposition procedure - 010
Dec 18, 2020
Letter accompanying subsequently filed items
Dec 18, 2020
Notice of opposition
Apr 15, 2020
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Mar 5, 2020
Decision to grant a European patent
Mar 4, 2020
Decision to allow further processing
Dec 18, 2019
Application deemed to be withdrawn ( translations of claims/payment missing)
Jul 30, 2019
Filing of the translations of the claims
Jul 30, 2019
French translation of claims
Jul 30, 2019
German translation of the claims
Jun 27, 2019
Bibliographic data of the European patent application
Jun 27, 2019
Communication about intention to grant a European patent
Jun 27, 2019
Intention to grant (signatures)
Jun 27, 2019
Text intended for grant (clean copy)
Jun 27, 2019
Text intended for grant (version for approval)
Jun 6, 2019
Amended claims with annotations
Jun 6, 2019
Annex
Jun 6, 2019
Claims
Jun 6, 2019
Request for correction/amendment of the text proposed for grant sent from 01.04.2012
Jun 6, 2019
Translation of the claims
Jun 6, 2019
Translation of the claims
Apr 4, 2019
Bibliographic data of the European patent application
Apr 4, 2019
Communication about intention to grant a European patent
Apr 4, 2019
Intention to grant (signatures)
Apr 4, 2019
Text intended for grant (clean copy)
Apr 4, 2019
Text intended for grant (version for approval)
Feb 12, 2019
Abstract
Feb 12, 2019
Abstract
Feb 12, 2019
Amended claims with annotations
Feb 12, 2019
Amended description with annotations
Feb 12, 2019
Claims
Feb 12, 2019
Description
Feb 12, 2019
Reply to communication from the Examining Division
Dec 12, 2018
Annex to the communication
Dec 12, 2018
Communication from the Examining Division
Dec 6, 2018
Examination started
Jul 26, 2018
Notification regarding date of start of examination with possibility to withdraw
May 31, 2016
Reply to Written Opinion prepared by the EPO
Dec 14, 2015
Invitation to confirm maintenance of the application and to correct deficiencies in the Written Opinion/amend application
Nov 9, 2015
Communication regarding the transmission of the European search report
Nov 9, 2015
European search opinion
Nov 9, 2015
European search report
Oct 29, 2015
Search started
Apr 8, 2015
Communication of the registration of a transfer or change of name and/or address
Mar 9, 2015
CDS Clean up - amended data concerning the postal address of the applicant
Feb 27, 2015
Annexes in respect of a client data request
Feb 27, 2015
Submission concerning change of applicant's name
Feb 29, 2012
Notification of forthcoming publication
Feb 13, 2012
Matter concerning the application
Feb 13, 2012
Non-patent literature cited during the examination procedure
Feb 13, 2012
Request for grant of a European patent
Jun 22, 2011
Abstract
Jun 22, 2011
Claims
Jun 22, 2011
Description
Jun 22, 2011
Designation of inventor
Jun 22, 2011
Drawings
Jun 22, 2011
Matter concerning the application
Jun 22, 2011
Payment of fees and costs
Jun 22, 2011
Priority document
Jun 22, 2011
Request for grant of a European patent
Jun 21, 2011
Abstract filed by fax
Jun 21, 2011
Claims filed by fax
Jun 21, 2011
Description filed by fax
Jun 21, 2011
Designation of inventor
Jun 21, 2011
Drawings filed by fax
Jun 21, 2011
Matter concerning the application
Jun 21, 2011
Request for grant of a European patent

EP2433985

HEXION RESEARCH BELGIUM

Application Number: EP11005046A
Filing Date: Jun 21, 2011
Status: Revoked; Sep 15, 2023
Publication Date: Apr 1, 2020
External Links: Slate, Register , Google Patents

IP Verse

Improved Epoxy Systems For Composites

Patent Summary

Patent Family

Patent Oppositions

Dossier Documents

EP2433985