Continuous Ethylene Tetramerization Process

Patent No. EP2935163 (titled "Continuous Ethylene Tetramerization Process") was filed by Nova Chemicals on Dec 4, 2013. The application was issued on Apr 4, 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
SASOL SOUTH AFRICA	Jan 4, 2019	HOFFMANN EITLE

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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Oct 20, 2023
Decision of the Board of Appeal
Oct 20, 2023
F3032 Notification(s) of the decision
Oct 20, 2023
F3032 Notification(s) of the decision
Aug 2, 2023
F3013 Oral Proceedings: Forwarding minutes
Aug 2, 2023
F3013 Oral Proceedings: Forwarding minutes
Aug 2, 2023
F3317 Oral Proceedings: Minutes (Appellant: Proprietor + Opponent)
Jul 5, 2023
F3345 Forwarding of submissions to parties
Jun 30, 2023
(Electronic) Receipt
Jun 30, 2023
(Electronic) Receipt
Jun 30, 2023
Letter accompanying subsequently filed items
Jun 30, 2023
Letter accompanying subsequently filed items
Jun 30, 2023
Letter dealing with oral proceedings during the appeal procedure
Jun 29, 2023
F3345 Forwarding of submissions to parties
Jun 27, 2023
(Electronic) Receipt
Jun 27, 2023
(Electronic) Receipt
Jun 27, 2023
Letter accompanying subsequently filed items
Jun 27, 2023
Letter accompanying subsequently filed items
Jun 27, 2023
Request for interpreters during oral proceedings
May 23, 2023
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
May 23, 2023
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
May 8, 2023
F3004 Communication of the Registry
May 8, 2023
F3004 Communication of the Registry
May 4, 2023
F3345 Forwarding of submissions to parties
May 2, 2023
(Electronic) Receipt
May 2, 2023
Letter accompanying subsequently filed items
May 2, 2023
Letter dealing with oral proceedings during the appeal procedure
Mar 8, 2023
Oral proceedings: change of venue
Mar 8, 2023
Oral proceedings: change of venue
Jan 23, 2023
F3004 Communication of the Registry
Jan 23, 2023
F3004 Communication of the Registry
Sep 1, 2022
F3011.1 Oral Proceedings: summons
Sep 1, 2022
F3011.1 Oral Proceedings: summons
Aug 29, 2022
F3010 Oral proceedings: order for summons
May 11, 2022
F3057 Communication: Change of responsibility of a Board of Appeal
May 11, 2022
F3057 Communication: Change of responsibility of a Board of Appeal
May 6, 2022
F3303.16 Change of composition of the Board (T)
May 6, 2022
F3313 Order: change of Board due to the technical aspects of the appeal
Jan 21, 2022
F3345 Forwarding of submissions to parties
Jan 19, 2022
F3345 Forwarding of submissions to parties
Jan 17, 2022
(Electronic) Receipt
Jan 17, 2022
Letter accompanying subsequently filed items
Jan 17, 2022
Reply to appeal
Jan 13, 2022
(Electronic) Receipt
Jan 13, 2022
Letter accompanying subsequently filed items
Jan 13, 2022
Reply to appeal
Sep 7, 2021
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Sep 7, 2021
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Sep 1, 2021
(Electronic) Receipt
Sep 1, 2021
Letter accompanying subsequently filed items
Sep 1, 2021
Statement of grounds of appeal
Aug 27, 2021
(Electronic) Receipt
Aug 27, 2021
Amended claims with annotations
Aug 27, 2021
Amended claims with annotations
Aug 27, 2021
Amended claims with annotations
Aug 27, 2021
Amended claims with annotations
Aug 27, 2021
Amended claims with annotations
Aug 27, 2021
Amended claims with annotations
Aug 27, 2021
Amended claims with annotations
Aug 27, 2021
Amended claims with annotations
Aug 27, 2021
Amended claims with annotations
Aug 27, 2021
Amended claims with annotations
Aug 27, 2021
Amended claims with annotations
Aug 27, 2021
Amended claims with annotations
Aug 27, 2021
Amended claims with annotations
Aug 27, 2021
Amended claims with annotations
Aug 27, 2021
Amended claims with annotations
Aug 27, 2021
Amended claims with annotations
Aug 27, 2021
Amended claims with annotations
Aug 27, 2021
Amended claims with annotations
Aug 27, 2021
Auxiliary request during appeals procedure - 01
Aug 27, 2021
Auxiliary request during appeals procedure - 02
Aug 27, 2021
Auxiliary request during appeals procedure - 03
Aug 27, 2021
Auxiliary request during appeals procedure - 04
Aug 27, 2021
Auxiliary request during appeals procedure - 05
Aug 27, 2021
Auxiliary request during appeals procedure - 06
Aug 27, 2021
Auxiliary request during appeals procedure - 07
Aug 27, 2021
Auxiliary request during appeals procedure - 08
Aug 27, 2021
Auxiliary request during appeals procedure - 09
Aug 27, 2021
Auxiliary request during appeals procedure - 10
Aug 27, 2021
Auxiliary request during appeals procedure - 11
Aug 27, 2021
Auxiliary request during appeals procedure - 12
Aug 27, 2021
Auxiliary request during appeals procedure - 13
Aug 27, 2021
Auxiliary request during appeals procedure - 14
Aug 27, 2021
Auxiliary request during appeals procedure - 15
Aug 27, 2021
Auxiliary request during appeals procedure - 16
Aug 27, 2021
Auxiliary request during appeals procedure - 17
Aug 27, 2021
Auxiliary request during appeals procedure - 18
Aug 27, 2021
Letter accompanying subsequently filed items
Aug 27, 2021
Statement of grounds of appeal
Jul 1, 2021
F3204 Communication of the file number to the parties
Jul 1, 2021
F3204 Communication of the file number to the parties
Jun 28, 2021
F3204 Communication of the file number to the parties
Jun 28, 2021
F3204 Communication of the file number to the parties
Jun 24, 2021
(Electronic) Receipt
Jun 24, 2021
Letter accompanying subsequently filed items
Jun 24, 2021
Letter accompanying subsequently filed items
Jun 24, 2021
Notice of appeal
Jun 24, 2021
Notice of appeal
Jun 24, 2021
Notice of appeal
Jun 21, 2021
(Electronic) Receipt
Jun 21, 2021
Letter accompanying subsequently filed items
Jun 21, 2021
Notice of appeal
Apr 26, 2021
(Electronic) Receipt
Apr 26, 2021
Advice of delivery
Apr 26, 2021
Letter accompanying subsequently filed items
Apr 22, 2021
Advice of delivery
Apr 21, 2021
Annex to the communication - opposition
Apr 21, 2021
Any annexes (other than citation) to an opposition letter
Apr 21, 2021
Any annexes (other than citation) to an opposition letter
Apr 21, 2021
Any annexes (other than citation) to an opposition letter
Apr 21, 2021
Any annexes (other than citation) to an opposition letter
Apr 21, 2021
Any annexes (other than citation) to an opposition letter
Apr 21, 2021
Any annexes (other than citation) to an opposition letter
Apr 21, 2021
Decision of the Opposition Division and instruction
Apr 21, 2021
Druckexemplar in opposition procedure
Apr 21, 2021
Grounds for the decision (Annex) - opposition
Apr 21, 2021
Interlocutory decision in opposition proceedings
Apr 21, 2021
Interlocutory decision in opposition proceedings
Apr 21, 2021
Internal form - Opposition/addressees
Apr 21, 2021
Internal form - Opposition/addressees
Apr 21, 2021
Means of redress
Apr 21, 2021
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Apr 21, 2021
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Apr 21, 2021
Provision of a copy of the minutes - opposition procedure
Apr 21, 2021
Provision of a copy of the minutes - opposition procedure
Apr 21, 2021
Transmittal of decision / summons - opposition
Apr 21, 2021
Transmittal of decision / summons - opposition
Feb 11, 2021
Information about the result of oral proceedings
Jan 8, 2021
(Electronic) Receipt
Jan 8, 2021
(Electronic) Receipt
Jan 8, 2021
Letter accompanying subsequently filed items
Jan 8, 2021
Letter accompanying subsequently filed items
Dec 21, 2020
Brief communication - Opposition proceedings
Dec 16, 2020
Brief communication - Opposition proceedings
Dec 11, 2020
(Electronic) Receipt
Dec 11, 2020
Oral proceedings: reply to date proposed
Dec 8, 2020
(Electronic) Receipt
Dec 8, 2020
Letter accompanying subsequently filed items
Dec 8, 2020
Notification concerning the date of oral proceedings
Dec 8, 2020
Notification concerning the date of oral proceedings
Dec 8, 2020
Written submission in preparation to/during oral proceedings
Jul 9, 2020
(Electronic) Receipt
Jul 9, 2020
Advice of delivery
Jul 9, 2020
Letter accompanying subsequently filed items
Jul 8, 2020
Advice of delivery
Jul 2, 2020
Acknowledgement of a document
Jul 2, 2020
Acknowledgement of a document
Jul 2, 2020
Information concerning oral proceedings
Jul 2, 2020
Notification concerning the date of oral proceedings
Jul 2, 2020
Notification concerning the date of oral proceedings
Jul 2, 2020
Summons to attend oral proceedings
Jul 2, 2020
Summons to attend oral proceedings
Jun 19, 2020
(Electronic) Receipt
Jun 19, 2020
Letter accompanying subsequently filed items
Jun 19, 2020
Written submission in preparation to/during oral proceedings
May 21, 2020
(Electronic) Receipt
May 21, 2020
Advice of delivery
May 21, 2020
Letter accompanying subsequently filed items
May 19, 2020
Advice of delivery
May 14, 2020
Acknowledgement of a document
May 14, 2020
Acknowledgement of a document
May 14, 2020
Annex to the communication - opposition
May 14, 2020
Information concerning oral proceedings
May 14, 2020
Summons to attend oral proceedings
May 14, 2020
Summons to attend oral proceedings
May 8, 2020
Notification concerning the date of oral proceedings
May 8, 2020
Notification concerning the date of oral proceedings
Apr 29, 2020
Written submission in preparation to/during oral proceedings
Mar 19, 2020
Brief communication - Opposition proceedings
Mar 19, 2020
Document concerning representation
Mar 18, 2020
Brief communication - Opposition proceedings
Mar 13, 2020
(Electronic) Receipt
Mar 13, 2020
Citation in opposition procedure - 005
Mar 13, 2020
Consolidated list of cited opposition documents
Mar 13, 2020
Letter accompanying subsequently filed items
Mar 13, 2020
Written submission in preparation to/during oral proceedings
Mar 12, 2020
(Electronic) Receipt
Mar 12, 2020
Auxiliary request during Opposition procedure
Mar 12, 2020
Auxiliary request during Opposition procedure
Mar 12, 2020
Auxiliary request during Opposition procedure - 02
Mar 12, 2020
Auxiliary request during Opposition procedure - 03
Mar 12, 2020
Letter accompanying subsequently filed items
Mar 12, 2020
Written submission in preparation to/during oral proceedings
Oct 31, 2019
Advice of delivery
Oct 9, 2019
(Electronic) Receipt
Oct 9, 2019
Advice of delivery
Oct 9, 2019
Letter accompanying subsequently filed items
Oct 8, 2019
Advice of delivery
Oct 7, 2019
Advice of delivery
Oct 2, 2019
Acknowledgement of a document
Oct 2, 2019
Acknowledgement of a document
Oct 2, 2019
Annex to the communication - opposition
Oct 2, 2019
Information concerning oral proceedings
Oct 2, 2019
Summons to attend oral proceedings
Oct 2, 2019
Summons to attend oral proceedings
Jun 24, 2019
Brief communication - Opposition proceedings
Jun 24, 2019
Brief communication - Opposition proceedings
Jun 11, 2019
Brief communication - Opposition proceedings
May 30, 2019
(Electronic) Receipt
May 30, 2019
Auxiliary request during Opposition procedure
May 30, 2019
Auxiliary request during Opposition procedure
May 30, 2019
Auxiliary request during Opposition procedure
May 30, 2019
Auxiliary request during Opposition procedure
May 30, 2019
Auxiliary request during Opposition procedure
May 30, 2019
Auxiliary request during Opposition procedure
May 30, 2019
Auxiliary request during Opposition procedure
May 30, 2019
Auxiliary request during Opposition procedure
May 30, 2019
Auxiliary request during Opposition procedure
May 30, 2019
Auxiliary request during Opposition procedure
May 30, 2019
Auxiliary request during Opposition procedure
May 30, 2019
Auxiliary request during Opposition procedure
May 30, 2019
Auxiliary request during Opposition procedure
May 30, 2019
Auxiliary request during Opposition procedure
May 30, 2019
Auxiliary request during Opposition procedure
May 30, 2019
Auxiliary request during Opposition procedure
May 30, 2019
Auxiliary request during Opposition procedure
May 30, 2019
Auxiliary request during Opposition procedure - 01
May 30, 2019
Auxiliary request during Opposition procedure - 02
May 30, 2019
Auxiliary request during Opposition procedure - 03
May 30, 2019
Auxiliary request during Opposition procedure - 04
May 30, 2019
Auxiliary request during Opposition procedure - 05
May 30, 2019
Auxiliary request during Opposition procedure - 06
May 30, 2019
Auxiliary request during Opposition procedure - 07
May 30, 2019
Auxiliary request during Opposition procedure - 08
May 30, 2019
Auxiliary request during Opposition procedure - 09
May 30, 2019
Auxiliary request during Opposition procedure - 10
May 30, 2019
Auxiliary request during Opposition procedure - 11
May 30, 2019
Auxiliary request during Opposition procedure - 12
May 30, 2019
Auxiliary request during Opposition procedure - 13
May 30, 2019
Auxiliary request during Opposition procedure - 14
May 30, 2019
Auxiliary request during Opposition procedure - 15
May 30, 2019
Auxiliary request during Opposition procedure - 16
May 30, 2019
Auxiliary request during Opposition procedure - 17
May 30, 2019
Letter accompanying subsequently filed items
May 30, 2019
Reply of the patent proprietor to the notice(s) of opposition
Jan 22, 2019
Communication of a notice of opposition and request to file observations
Jan 22, 2019
Notice of further oppositions to opponent(s)
Jan 10, 2019
Communication of a notice of opposition - first information to patent proprietor
Jan 4, 2019
(Electronic) Receipt
Jan 4, 2019
Citation in opposition procedure - 001
Jan 4, 2019
Citation in opposition procedure - 002
Jan 4, 2019
Citation in opposition procedure - 003
Jan 4, 2019
Citation in opposition procedure - 004
Jan 4, 2019
Notice of opposition
Jan 4, 2019
Notice of opposition
Dec 20, 2018
Communication of amended entries concerning the representative
Dec 14, 2018
Submission concerning change of applicant's representative
Dec 13, 2018
Submission concerning change of applicant's representative
Apr 16, 2018
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Mar 8, 2018
Decision to grant a European patent
Feb 16, 2018
(Electronic) Receipt
Feb 16, 2018
Filing of the translations of the claims
Feb 16, 2018
French translation of claims
Feb 16, 2018
German translation of the claims
Nov 8, 2017
Bibliographic data of the European patent application
Nov 8, 2017
Communication about intention to grant a European patent
Nov 8, 2017
Intention to grant (signatures)
Nov 8, 2017
Text intended for grant (clean copy)
Nov 8, 2017
Text intended for grant (version for approval)
Oct 10, 2017
Examination started
Feb 13, 2017
(Electronic) Receipt
Feb 13, 2017
Reply to invitation to file a copy of priority search results
Jan 31, 2017
Invitation to file a copy of search results(priority)
Jan 5, 2017
(Electronic) Receipt
Jan 5, 2017
Amended claims filed after receipt of (European) search report
Jan 5, 2017
Amended claims with annotations
Jan 5, 2017
Amended description filed after receipt of (European) search report
Jan 5, 2017
Amended drawings filed after receipt of (European) search report
Jan 5, 2017
Amendments received before examination
Jan 5, 2017
Letter accompanying subsequently filed items
Jul 14, 2016
Invitation to declare maintenance of the application and to correct deficiencies in the Written Opinion/amend application
Jun 27, 2016
Communication regarding the transmission of the European search report
Jun 27, 2016
European search opinion
Jun 27, 2016
Information on Search Strategy
Jun 27, 2016
Supplementary European search report
Jun 16, 2016
Search started
Sep 30, 2015
Notification on forthcoming publication of bibliographic data
Jul 28, 2015
Communication regarding possible amendment of the application/payment of claims fee
Jul 24, 2015
Communication to designated inventor
Jul 24, 2015
Communication to designated inventor
Jul 24, 2015
Communication to designated inventor
Jul 7, 2015
Copy of the international preliminary report on patentability
May 11, 2015
Submission concerning representation
May 8, 2015
Submission concerning representation
Apr 8, 2015
Information regarding early processing
Mar 23, 2015
(Electronic) Receipt
Mar 23, 2015
Request for entry into the European phase
Mar 23, 2015
Submission concerning representation
Mar 4, 2015
Notification of the recording of a change
Jul 17, 2014
Priority document (electronically transmitted)
Jun 26, 2014
Copy of the international search report
Jun 26, 2014
Published international application - A1

EP2935163

NOVA CHEMICALS

Application Number: EP13865468A
Filing Date: Dec 4, 2013
Status: Revoked; Oct 24, 2023
Publication Date: Apr 4, 2018
External Links: Slate, Register , Google Patents

IP Verse

Continuous Ethylene Tetramerization Process

Patent Summary

Patent Family

Patent Oppositions

Dossier Documents

EP2935163