Method For Producing Polyolefin

Patent No. EP3231817 (titled "Method For Producing Polyolefin") was filed by Sumitomo Chemical on Apr 10, 2017. The application was issued on Jun 5, 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
WR GRACE & CONN	Mar 2, 2020	KUTZENBERGER WOLFF & PARTNER

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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Feb 7, 2022
Communication to the parties concerning termination of the opposition proceedings - opposition rejected - no appeal lodged
Feb 7, 2022
Communication to the parties concerning the termination of the opposition proceedings (opponent)
Feb 2, 2022
Termination of the opposition proceedings with maintenance of patent
Oct 25, 2021
Advice of delivery
Oct 22, 2021
Advice of delivery
Oct 21, 2021
Annex to the communication - opposition
Oct 21, 2021
Decision of the Opposition Division and instruction
Oct 21, 2021
Decision rejecting the opposition
Oct 21, 2021
Decision rejecting the opposition
Oct 21, 2021
Grounds for the decision (Annex) - opposition
Oct 21, 2021
Means of redress
Oct 21, 2021
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Oct 21, 2021
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Oct 21, 2021
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Oct 21, 2021
Provision of a copy of the minutes - opposition procedure
Oct 21, 2021
Provision of a copy of the minutes - opposition procedure
Oct 21, 2021
Transmittal of decision / summons - opposition
Oct 21, 2021
Transmittal of decision / summons - opposition
Oct 19, 2021
Brief communication - Opposition proceedings
Oct 14, 2021
(Electronic) Receipt
Oct 14, 2021
General enquiry
Oct 14, 2021
Letter accompanying subsequently filed items
May 6, 2021
Information about the result of oral proceedings
Apr 22, 2021
(Electronic) Receipt
Apr 22, 2021
Letter accompanying subsequently filed items
Apr 22, 2021
Request for interpreters during oral proceedings
Apr 12, 2021
Brief communication - Opposition proceedings
Apr 6, 2021
(Electronic) Receipt
Apr 6, 2021
Auxiliary request during Opposition procedure
Apr 6, 2021
Auxiliary request during Opposition procedure
Apr 6, 2021
Auxiliary request during Opposition procedure
Apr 6, 2021
Auxiliary request during Opposition procedure
Apr 6, 2021
Auxiliary request during Opposition procedure
Apr 6, 2021
Auxiliary request during Opposition procedure - 03
Apr 6, 2021
Auxiliary request during Opposition procedure - 04
Apr 6, 2021
Auxiliary request during Opposition procedure - 04
Apr 6, 2021
Auxiliary request during Opposition procedure - 04
Apr 6, 2021
Auxiliary request during Opposition procedure - 06
Apr 6, 2021
Letter accompanying subsequently filed items
Apr 6, 2021
Written submission in preparation to/during oral proceedings
Mar 10, 2021
Brief communication - Opposition proceedings
Mar 10, 2021
Brief communication - Opposition proceedings
Mar 5, 2021
(Electronic) Receipt
Mar 5, 2021
(Electronic) Receipt
Mar 5, 2021
Citation in opposition procedure - 009
Mar 5, 2021
Citation in opposition procedure - 010
Mar 5, 2021
Letter accompanying subsequently filed items
Mar 5, 2021
Letter accompanying subsequently filed items
Mar 5, 2021
Request for interpreters during oral proceedings
Mar 5, 2021
Written submission in preparation to/during oral proceedings
Mar 5, 2021
Written submission in preparation to/during oral proceedings
Feb 19, 2021
(Electronic) Receipt
Feb 19, 2021
Letter accompanying subsequently filed items
Jan 11, 2021
Notification concerning the date of oral proceedings
Jan 11, 2021
Notification concerning the date of oral proceedings
Nov 17, 2020
Communication about missing advice of delivery
Nov 16, 2020
Advice of delivery
Oct 27, 2020
(Electronic) Receipt
Oct 27, 2020
Letter accompanying subsequently filed items
Oct 27, 2020
Letter regarding the opposition procedure (no time limit)
Oct 14, 2020
Advice of delivery
Oct 7, 2020
Acknowledgement of a document
Oct 7, 2020
Acknowledgement of a document
Oct 7, 2020
Annex to the communication - opposition
Oct 7, 2020
Summons to attend oral proceedings
Oct 7, 2020
Summons to attend oral proceedings
Aug 4, 2020
Brief communication - Opposition proceedings
Jul 30, 2020
(Electronic) Receipt
Jul 30, 2020
Auxiliary request during Opposition procedure
Jul 30, 2020
Auxiliary request during Opposition procedure
Jul 30, 2020
Auxiliary request during Opposition procedure
Jul 30, 2020
Auxiliary request during Opposition procedure
Jul 30, 2020
Auxiliary request during Opposition procedure
Jul 30, 2020
Auxiliary request during Opposition procedure
Jul 30, 2020
Auxiliary request during Opposition procedure
Jul 30, 2020
Auxiliary request during Opposition procedure - 01
Jul 30, 2020
Auxiliary request during Opposition procedure - 02
Jul 30, 2020
Auxiliary request during Opposition procedure - 03
Jul 30, 2020
Auxiliary request during Opposition procedure - 04
Jul 30, 2020
Auxiliary request during Opposition procedure - 05
Jul 30, 2020
Auxiliary request during Opposition procedure - 06
Jul 30, 2020
Auxiliary request during Opposition procedure - 07
Jul 30, 2020
Letter accompanying subsequently filed items
Jul 30, 2020
Reply of the patent proprietor to the notice(s) of opposition
Mar 20, 2020
Communication of a notice of opposition and request to file observations
Mar 20, 2020
Notice of further oppositions to opponent(s)
Mar 10, 2020
Communication of a notice of opposition - first information to patent proprietor
Mar 2, 2020
(Electronic) Receipt
Mar 2, 2020
Citation in opposition procedure - 001
Mar 2, 2020
Citation in opposition procedure - 002
Mar 2, 2020
Citation in opposition procedure - 003
Mar 2, 2020
Citation in opposition procedure - 004
Mar 2, 2020
Citation in opposition procedure - 005
Mar 2, 2020
Citation in opposition procedure - 006
Mar 2, 2020
Citation in opposition procedure - 007
Mar 2, 2020
Citation in opposition procedure - 008
Mar 2, 2020
Notice of opposition
Mar 2, 2020
Notice of opposition
Jun 18, 2019
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
May 9, 2019
Decision to grant a European patent
Apr 5, 2019
(Electronic) Receipt
Apr 5, 2019
Filing of the translations of the claims
Apr 5, 2019
French translation of claims
Apr 5, 2019
German translation of the claims
Apr 5, 2019
Letter accompanying subsequently filed items
Dec 3, 2018
Bibliographic data of the European patent application
Dec 3, 2018
Communication about intention to grant a European patent
Dec 3, 2018
Intention to grant (signatures)
Dec 3, 2018
Text intended for grant (clean copy)
Dec 3, 2018
Text intended for grant (version for approval)
Aug 7, 2018
Reply to communication from the Examining Division
Apr 12, 2018
Annex to the communication
Apr 12, 2018
Communication from the Examining Division
Apr 6, 2018
Examination started
Jan 15, 2018
(Electronic) Receipt
Jan 15, 2018
Amended claims filed after receipt of (European) search report
Jan 15, 2018
Amended claims with annotations
Jan 15, 2018
Amended description filed after receipt of (European) search report
Jan 15, 2018
Amended description with annotations
Jan 15, 2018
Amendments received before examination
Jan 15, 2018
Letter accompanying subsequently filed items
Oct 23, 2017
Reminder period for payment of examination fee/designation fee and correction of deficiencies in Written Opinion/amendment
Sep 20, 2017
Notification of forthcoming publication
Aug 10, 2017
Communication regarding the transmission of the European search report
Aug 10, 2017
European search opinion
Aug 10, 2017
European search report
Aug 10, 2017
Information on Search Strategy
Aug 2, 2017
Search started
Jul 3, 2017
Communication to designated inventor
Jul 3, 2017
Communication to designated inventor
Jun 19, 2017
Confirmation of receipt of (electronically) transmitted priority document
Jun 12, 2017
Priority document (electronically transmitted)
Apr 10, 2017
Abstract
Apr 10, 2017
Acknowledgement of receipt of electronic submission of the request for grant of a European patent
Apr 10, 2017
Claims
Apr 10, 2017
Description
Apr 10, 2017
Designation of inventor
Apr 10, 2017
Request for grant of a European patent

EP3231817

SUMITOMO CHEMICAL

Application Number: EP17165842A
Filing Date: Apr 10, 2017
Status: Opposition Rejected; Feb 4, 2022
Publication Date: Jun 5, 2019
External Links: Slate, Register , Google Patents

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Method For Producing Polyolefin

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Dossier Documents

EP3231817