Improved Expandable Vinyl Aromatic Polymers

Patent No. EP3523363 (titled "Improved Expandable Vinyl Aromatic Polymers") was filed by Totalenergies Onetech Belgium on Oct 6, 2017. The application was issued on Jul 22, 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
VERSALIS	Apr 22, 2021	BOTTERO

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 27, 2023
Communication to the parties concerning the termination of the opposition proceedings (opponent)
Jul 27, 2023
Communication to the parties concerning the termination of the opposition proceedings (proprietor)
Jul 24, 2023
Termination of the opposition proceedings with revocation of patent
Apr 12, 2023
Annex to the communication - opposition
Apr 12, 2023
Decision of the Opposition Division and instruction
Apr 12, 2023
Decision revoking the European patent
Apr 12, 2023
Decision revoking the European patent
Apr 12, 2023
Grounds for the decision (Annex) - opposition
Apr 12, 2023
Means of redress
Apr 12, 2023
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Apr 12, 2023
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Apr 12, 2023
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Apr 12, 2023
Provision of a copy of the minutes - opposition procedure
Apr 12, 2023
Provision of a copy of the minutes - opposition procedure
Apr 12, 2023
Scanned annex to a communication - opposition procedure
Apr 12, 2023
Transmittal of decision / summons - opposition
Apr 12, 2023
Transmittal of decision / summons - opposition
Jan 18, 2023
Information about the result of oral proceedings
Jan 17, 2023
Brief communication - Opposition proceedings
Jan 9, 2023
(Electronic) Receipt
Jan 9, 2023
Letter accompanying subsequently filed items
Jan 9, 2023
Written submission in preparation to/during oral proceedings
Dec 12, 2022
Brief communication - Opposition proceedings
Dec 6, 2022
(Electronic) Receipt
Dec 6, 2022
(Electronic) Receipt
Dec 6, 2022
Brief communication - Opposition proceedings
Dec 6, 2022
Brief communication - Opposition proceedings
Dec 6, 2022
Letter accompanying subsequently filed items
Dec 6, 2022
Letter accompanying subsequently filed items
Dec 6, 2022
Written submission in preparation to/during oral proceedings
Dec 1, 2022
Communication concerning the filing of a power of attorney
Dec 1, 2022
Communication of amended entries concerning the representative
Dec 1, 2022
Communication of the registration of a transfer or change of name and/or address
Nov 30, 2022
Notification concerning the date of oral proceedings
Nov 30, 2022
Notification concerning the date of oral proceedings
Nov 28, 2022
Brief communication - Opposition proceedings
Nov 25, 2022
(Electronic) Receipt
Nov 25, 2022
Annexes in respect of a client data request
Nov 25, 2022
Annexes in respect of a client data request
Nov 25, 2022
Annexes in respect of a client data request
Nov 25, 2022
Annexes in respect of a client data request
Nov 25, 2022
Authorisation
Nov 25, 2022
Brief communication - Opposition proceedings
Nov 25, 2022
Letter accompanying subsequently filed items (CDR)
Nov 25, 2022
Submission concerning change of proprietor's representative
Nov 21, 2022
(Electronic) Receipt
Nov 21, 2022
Request for interpreters during oral proceedings
Nov 18, 2022
(Electronic) Receipt
Nov 18, 2022
(Electronic) Receipt
Nov 18, 2022
Auxiliary request during Opposition procedure
Nov 18, 2022
Auxiliary request during Opposition procedure
Nov 18, 2022
Auxiliary request during Opposition procedure - 01
Nov 18, 2022
Auxiliary request during Opposition procedure - 02
Nov 18, 2022
Citation in opposition procedure - 049
Nov 18, 2022
Citation in opposition procedure - 050
Nov 18, 2022
Citation in opposition procedure - 051
Nov 18, 2022
Citation in opposition procedure - 052
Nov 18, 2022
Citation in opposition procedure - 053
Nov 18, 2022
Consolidated list of cited opposition documents
Nov 18, 2022
Letter accompanying subsequently filed items
Nov 18, 2022
Letter accompanying subsequently filed items
Nov 18, 2022
Written submission in preparation to/during oral proceedings
Nov 18, 2022
Written submission in preparation to/during oral proceedings
Nov 15, 2022
Brief communication - Opposition proceedings
Nov 8, 2022
(Electronic) Receipt
Nov 8, 2022
Request for interpreters during oral proceedings
Apr 26, 2022
(Electronic) Receipt
Apr 26, 2022
Advice of delivery
Apr 26, 2022
Letter accompanying subsequently filed items
Apr 21, 2022
(Electronic) Receipt
Apr 21, 2022
Advice of delivery
Apr 21, 2022
Letter accompanying subsequently filed items
Apr 19, 2022
Annex to the communication - opposition
Apr 19, 2022
Information concerning oral proceedings
Apr 19, 2022
Transmittal of decision / summons - opposition
Apr 19, 2022
Transmittal of decision / summons - opposition
Feb 7, 2022
Brief communication - Opposition proceedings
Feb 2, 2022
Letter accompanying subsequently filed items
Feb 2, 2022
Non-scannable object
Feb 2, 2022
Non-scannable object
Feb 2, 2022
Non-scannable object
Jan 28, 2022
(Electronic) Receipt
Jan 28, 2022
Citation in opposition procedure - 047
Jan 28, 2022
Citation in opposition procedure - 048
Jan 28, 2022
Consolidated list of cited opposition documents
Jan 28, 2022
Letter accompanying subsequently filed items
Jan 28, 2022
Letter regarding the opposition procedure (no time limit)
Oct 7, 2021
Brief communication - Opposition proceedings
Sep 29, 2021
(Electronic) Receipt
Sep 29, 2021
Authorisation
Sep 29, 2021
Citation in opposition procedure - 044
Sep 29, 2021
Citation in opposition procedure - 045
Sep 29, 2021
Citation in opposition procedure - 046
Sep 29, 2021
Letter accompanying subsequently filed items
Sep 20, 2021
(Electronic) Receipt
Sep 20, 2021
Letter accompanying subsequently filed items
Sep 20, 2021
Letter regarding the opposition procedure (no time limit)
Sep 8, 2021
Brief communication - Opposition proceedings
Sep 2, 2021
(Electronic) Receipt
Sep 2, 2021
Letter accompanying subsequently filed items
Sep 2, 2021
Main request during Opposition procedure
Sep 2, 2021
Main request during Opposition procedure
Sep 2, 2021
Reply of the patent proprietor to the notice(s) of opposition
May 10, 2021
Communication of a notice of opposition and request to file observations
May 10, 2021
Notice of further oppositions to opponent(s)
May 6, 2021
Brief communication - Opposition proceedings
Apr 30, 2021
Communication of a notice of opposition - first information to patent proprietor
Apr 29, 2021
(Electronic) Receipt
Apr 29, 2021
Citation in opposition procedure - 004
Apr 29, 2021
Citation in opposition procedure - 005
Apr 29, 2021
Citation in opposition procedure - 008
Apr 29, 2021
Citation in opposition procedure - 013
Apr 29, 2021
Citation in opposition procedure - 014
Apr 29, 2021
Citation in opposition procedure - 034
Apr 29, 2021
Letter accompanying subsequently filed items
Apr 29, 2021
Letter regarding the opposition procedure (no time limit)
Apr 22, 2021
(Electronic) Receipt
Apr 22, 2021
Citation in opposition procedure
Apr 22, 2021
Citation in opposition procedure
Apr 22, 2021
Citation in opposition procedure
Apr 22, 2021
Citation in opposition procedure
Apr 22, 2021
Citation in opposition procedure
Apr 22, 2021
Citation in opposition procedure
Apr 22, 2021
Citation in opposition procedure
Apr 22, 2021
Citation in opposition procedure - 001
Apr 22, 2021
Citation in opposition procedure - 002
Apr 22, 2021
Citation in opposition procedure - 003
Apr 22, 2021
Citation in opposition procedure - 005
Apr 22, 2021
Citation in opposition procedure - 006
Apr 22, 2021
Citation in opposition procedure - 007
Apr 22, 2021
Citation in opposition procedure - 009
Apr 22, 2021
Citation in opposition procedure - 010
Apr 22, 2021
Citation in opposition procedure - 011
Apr 22, 2021
Citation in opposition procedure - 012
Apr 22, 2021
Citation in opposition procedure - 015
Apr 22, 2021
Citation in opposition procedure - 016
Apr 22, 2021
Citation in opposition procedure - 017
Apr 22, 2021
Citation in opposition procedure - 018
Apr 22, 2021
Citation in opposition procedure - 019
Apr 22, 2021
Citation in opposition procedure - 020
Apr 22, 2021
Citation in opposition procedure - 021
Apr 22, 2021
Citation in opposition procedure - 022
Apr 22, 2021
Citation in opposition procedure - 023
Apr 22, 2021
Citation in opposition procedure - 024
Apr 22, 2021
Citation in opposition procedure - 025
Apr 22, 2021
Citation in opposition procedure - 026
Apr 22, 2021
Citation in opposition procedure - 027
Apr 22, 2021
Citation in opposition procedure - 028
Apr 22, 2021
Citation in opposition procedure - 029
Apr 22, 2021
Citation in opposition procedure - 030
Apr 22, 2021
Citation in opposition procedure - 031
Apr 22, 2021
Citation in opposition procedure - 032
Apr 22, 2021
Citation in opposition procedure - 033
Apr 22, 2021
Citation in opposition procedure - 035
Apr 22, 2021
Citation in opposition procedure - 036
Apr 22, 2021
Citation in opposition procedure - 037
Apr 22, 2021
Citation in opposition procedure - 038
Apr 22, 2021
Citation in opposition procedure - 039
Apr 22, 2021
Citation in opposition procedure - 040
Apr 22, 2021
Citation in opposition procedure - 041
Apr 22, 2021
Citation in opposition procedure - 042
Apr 22, 2021
Citation in opposition procedure - 042
Apr 22, 2021
Citation in opposition procedure - 043
Apr 22, 2021
Notice of opposition
Apr 22, 2021
Notice of opposition
Aug 3, 2020
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Jun 25, 2020
Decision to grant a European patent
Jun 10, 2020
(Electronic) Receipt
Jun 10, 2020
Filing of the translations of the claims
Jun 10, 2020
French translation of claims
Jun 10, 2020
German translation of the claims
Jun 10, 2020
Letter accompanying subsequently filed items
Feb 11, 2020
Bibliographic data of the European patent application
Feb 11, 2020
Communication about intention to grant a European patent
Feb 11, 2020
Intention to grant (signatures)
Feb 11, 2020
Text intended for grant (clean copy)
Feb 11, 2020
Text intended for grant (version for approval)
Jan 15, 2020
Examination started
Nov 9, 2019
(Electronic) Receipt
Nov 9, 2019
Amended claims filed after receipt of (European) search report
Nov 9, 2019
Amended claims with annotations
Nov 9, 2019
Amended description filed after receipt of (European) search report
Nov 9, 2019
Amended description with annotations
Nov 9, 2019
Amendments received before examination
Nov 9, 2019
Letter accompanying subsequently filed items
Jul 17, 2019
Notification on forthcoming publication of bibliographic data
May 17, 2019
Communication regarding comments on written opinion/amendment of application/payment of claims fee
May 15, 2019
Communication to designated inventor
May 15, 2019
Communication to designated inventor
May 15, 2019
Communication to designated inventor
May 15, 2019
Communication to designated inventor
May 15, 2019
Communication to designated inventor
May 10, 2019
Copy of the international preliminary report on patentability
May 10, 2019
Priority search results copy provided by EPO
Apr 16, 2019
Claims filed under Art.19 PCT
Apr 16, 2019
Statement under Art. 19 PCT
Apr 15, 2019
(Electronic) Receipt
Apr 15, 2019
Request for entry into the European phase
Feb 22, 2019
Information on entry into European phase
May 9, 2018
Priority document (electronically transmitted)
Apr 19, 2018
Copy of the international search report
Apr 19, 2018
Published international application - A1
Nov 15, 2017
Written opinion of the ISA, boxes No. I to VIII
Nov 15, 2017
Written opinion of the ISA, cover sheet
Nov 15, 2017
Written opinion of the ISA, supplemental box
Oct 17, 2017
Notification of the international application number and of the international filing date
Oct 6, 2017
(Electronic) Receipt
Oct 6, 2017
Abstract
Oct 6, 2017
Claims
Oct 6, 2017
Description
Oct 6, 2017
Document concerning fees and payments
Oct 6, 2017
Drawings
Oct 6, 2017
Electronic request for grant of an International application
Oct 6, 2017
Priority document (RO-procedure)

EP3523363

TOTALENERGIES ONETECH BELGIUM

Application Number: EP17778311A
Filing Date: Oct 6, 2017
Status: Revoked; Jul 28, 2023
Publication Date: Jul 22, 2020
External Links: Slate, Register , Google Patents

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Improved Expandable Vinyl Aromatic Polymers

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Dossier Documents

EP3523363