Stable Small-Pore Zeolites

Patent No. EP3793727 (titled "Stable Small-Pore Zeolites") was filed by Umicore on May 13, 2019. The application was issued on Jun 22, 2022.

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
JOHNSON MATTHEY PUBLIC	Mar 22, 2023	JOHNSON MATTHEY

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 16, 2025
Communication to the parties concerning termination of the opposition proceedings - opposition rejected - no appeal lodged
Jul 16, 2025
Communication to the parties concerning the termination of the opposition proceedings (opponent)
Apr 11, 2025
Annex to the communication - opposition
Apr 11, 2025
Brief communication - Opposition proceedings
Apr 11, 2025
Brief communication - Opposition proceedings
Apr 11, 2025
Decision rejecting the opposition
Apr 11, 2025
Decision rejecting the opposition
Apr 11, 2025
Grounds for the decision (Annex) - opposition
Apr 11, 2025
Means of redress
Apr 11, 2025
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Apr 11, 2025
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Apr 11, 2025
Provision of a copy of the minutes - opposition procedure
Apr 11, 2025
Provision of a copy of the minutes - opposition procedure
Apr 11, 2025
Scanned annex to a communication - opposition procedure
Apr 9, 2025
Decision of the Opposition Division and instruction
Feb 27, 2025
Information about the result of oral proceedings
Feb 26, 2025
(Electronic) Receipt
Feb 26, 2025
Brief communication - Opposition proceedings
Feb 26, 2025
Citation in opposition procedure - 020
Feb 26, 2025
Consolidated list of cited opposition documents
Feb 26, 2025
Letter accompanying subsequently filed items
Feb 26, 2025
Written submission in preparation to/during oral proceedings
Feb 24, 2025
(Electronic) Receipt
Feb 24, 2025
Citation in opposition procedure - 019
Feb 24, 2025
Letter accompanying subsequently filed items
Feb 24, 2025
Written submission in preparation to/during oral proceedings
Feb 14, 2025
Brief communication - Opposition proceedings
Feb 6, 2025
(Electronic) Receipt
Feb 6, 2025
Citation in opposition procedure - 017
Feb 6, 2025
Citation in opposition procedure - 018
Feb 6, 2025
Letter accompanying subsequently filed items
Feb 6, 2025
Written submission in preparation to/during oral proceedings
Dec 20, 2024
Brief communication - Opposition proceedings
Dec 20, 2024
Brief communication - Opposition proceedings
Dec 20, 2024
Brief communication - Opposition proceedings
Dec 20, 2024
Brief communication - Opposition proceedings
Dec 13, 2024
(Electronic) Receipt
Dec 13, 2024
(Electronic) Receipt
Dec 13, 2024
(Electronic) Receipt
Dec 13, 2024
Auxiliary request during Opposition procedure
Dec 13, 2024
Auxiliary request during Opposition procedure
Dec 13, 2024
Auxiliary request during Opposition procedure
Dec 13, 2024
Auxiliary request during Opposition procedure - 01
Dec 13, 2024
Auxiliary request during Opposition procedure - 02
Dec 13, 2024
Auxiliary request during Opposition procedure - 03
Dec 13, 2024
Citation in opposition procedure - 016
Dec 13, 2024
Letter accompanying subsequently filed items
Dec 13, 2024
Letter accompanying subsequently filed items
Dec 13, 2024
Letter accompanying subsequently filed items
Dec 13, 2024
Request for interpreters during oral proceedings
Dec 13, 2024
Written submission in preparation to/during oral proceedings
Dec 13, 2024
Written submission in preparation to/during oral proceedings
Oct 16, 2024
Brief communication - Opposition proceedings
Oct 14, 2024
Communication of amended entries
Oct 8, 2024
(Electronic) Receipt
Oct 8, 2024
Letter accompanying subsequently filed items
Oct 8, 2024
Request for change of opponent's representative
Jan 5, 2024
(Electronic) Receipt
Jan 5, 2024
Advice of delivery
Jan 5, 2024
Letter accompanying subsequently filed items
Jan 3, 2024
Advice of delivery
Jan 3, 2024
Annex to the communication - opposition
Jan 3, 2024
Information concerning oral proceedings
Jan 3, 2024
Scanned annex to a communication - opposition procedure
Jan 3, 2024
Summons to attend oral proceedings
Jan 3, 2024
Summons to attend oral proceedings
Jan 3, 2024
Transmittal of decision / summons - opposition
Jan 3, 2024
Transmittal of decision / summons - opposition
Aug 18, 2023
Brief communication - Opposition proceedings
Aug 14, 2023
(Electronic) Receipt
Aug 14, 2023
Letter accompanying subsequently filed items
Aug 14, 2023
Reply of the patent proprietor to the notice(s) of opposition
Apr 12, 2023
Brief communication - Opposition proceedings
Apr 11, 2023
Communication concerning the filing of a power of attorney
Apr 11, 2023
Communication of amended entries concerning the representative
Apr 5, 2023
Communication of a notice of opposition and request to file observations
Apr 5, 2023
Notice of further oppositions to opponent(s)
Apr 3, 2023
(Electronic) Receipt
Apr 3, 2023
Letter accompanying subsequently filed items (CDR)
Apr 3, 2023
Submission concerning change of proprietor's representative
Mar 28, 2023
Communication of a notice of opposition - first information to patent proprietor
Mar 22, 2023
(Electronic) Receipt
Mar 22, 2023
Citation in opposition procedure - 001
Mar 22, 2023
Citation in opposition procedure - 002
Mar 22, 2023
Citation in opposition procedure - 003
Mar 22, 2023
Citation in opposition procedure - 004
Mar 22, 2023
Citation in opposition procedure - 005
Mar 22, 2023
Citation in opposition procedure - 006
Mar 22, 2023
Citation in opposition procedure - 007
Mar 22, 2023
Citation in opposition procedure - 008
Mar 22, 2023
Citation in opposition procedure - 009
Mar 22, 2023
Citation in opposition procedure - 010
Mar 22, 2023
Citation in opposition procedure - 011
Mar 22, 2023
Citation in opposition procedure - 012
Mar 22, 2023
Citation in opposition procedure - 013
Mar 22, 2023
Citation in opposition procedure - 014
Mar 22, 2023
Citation in opposition procedure - 015
Mar 22, 2023
Consolidated list of cited opposition documents
Mar 22, 2023
Notice of opposition
Mar 22, 2023
Notice of opposition
Jul 5, 2022
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
May 27, 2022
Decision to grant a European patent
May 10, 2022
Communication regarding the forthcoming grant
May 4, 2022
(Electronic) Receipt
May 4, 2022
Filing of the translations of the claims
May 4, 2022
French translation of claims
May 4, 2022
German translation of the claims
May 4, 2022
Letter accompanying subsequently filed items
Mar 18, 2022
Bibliographic data of the European patent application
Mar 18, 2022
Communication about intention to grant a European patent
Mar 18, 2022
Intention to grant (signatures)
Mar 18, 2022
Text intended for grant (clean copy)
Mar 18, 2022
Text intended for grant (version for approval)
Feb 3, 2022
(Electronic) Receipt
Feb 3, 2022
Amended description with annotations
Feb 3, 2022
Description
Feb 3, 2022
Letter accompanying subsequently filed items
Feb 3, 2022
Request for correction/amendment of the text proposed for grant sent from 01.04.2012
Jan 11, 2022
Intention to grant (signatures)
Jan 10, 2022
Bibliographic data of the European patent application
Jan 10, 2022
Communication about intention to grant a European patent
Jan 10, 2022
Text intended for grant (clean copy)
Jan 10, 2022
Text intended for grant (version for approval)
Dec 7, 2021
Examination started
Jun 22, 2021
(Electronic) Receipt
Jun 22, 2021
Letter accompanying subsequently filed items
Jun 22, 2021
Reply to Written Opinion prepared by the EPO
Feb 24, 2021
Notification on forthcoming publication of bibliographic data
Dec 23, 2020
Communication regarding comments on written opinion/amendment of application/payment of claims fee
Dec 21, 2020
Communication to designated inventor
Dec 21, 2020
Communication to designated inventor
Dec 21, 2020
Communication to designated inventor
Dec 21, 2020
Communication to designated inventor
Dec 21, 2020
Communication to designated inventor
Dec 21, 2020
Communication to designated inventor
Dec 21, 2020
Communication to designated inventor
Dec 21, 2020
Communication to designated inventor
Dec 16, 2020
Priority search results copy provided by EPO
Nov 30, 2020
(Electronic) Receipt
Nov 30, 2020
Amended claims filed after receipt of (European) search report
Nov 30, 2020
Amended claims with annotations
Nov 30, 2020
Amended description filed after receipt of (European) search report
Nov 30, 2020
Annex
Nov 30, 2020
Request for entry into the European phase
Nov 23, 2020
Copy of the international preliminary examination report
Oct 27, 2020
Notification of the recording of a change
Oct 27, 2020
Notification of the recording of a change
Oct 27, 2020
Notification of the recording of a change
Oct 27, 2020
Notification of the recording of a change
Oct 27, 2020
Notification of the recording of a change
Oct 27, 2020
Notification of the recording of a change
Oct 14, 2020
Incoming letter related to PCT RO
Sep 25, 2020
Information on entry into European phase
Jul 16, 2020
Annex to International preliminary examination report
Jul 16, 2020
International preliminary examination report
Jul 16, 2020
International preliminary examination report - free text sheet
Jul 16, 2020
International preliminary examination report - points I-VIII
Jul 16, 2020
Transmittal of International Preliminary Examination Report
Mar 19, 2020
(Electronic) Receipt
Mar 19, 2020
Letter regarding PCTII procedure
Mar 19, 2020
PCT(IPEA): Amended sheet - claims
Mar 19, 2020
PCT(IPEA): Amended sheet - claims
Mar 19, 2020
Reply to communication PCT/IPEA/408
Jan 22, 2020
Written opinion
Jan 22, 2020
Written opinion - free text sheet
Jan 22, 2020
Written opinion - points I-VIII
Jan 7, 2020
Notification of election of EPO
Jan 3, 2020
Amendments of documents (Article 19 PCT) (without attachments)
Dec 18, 2019
Notification of receipt of demand
Dec 13, 2019
(Electronic) Receipt
Dec 13, 2019
PCT demand form
Dec 13, 2019
PCT(IPEA): Amended sheet - description
Dec 13, 2019
PCT(IPEA): Amended sheet - description
Dec 13, 2019
Payment of fees and costs
Dec 13, 2019
Reply to International Search Opinion
Dec 9, 2019
Priority document (electronically transmitted)
Nov 21, 2019
Copy of the international search report
Nov 21, 2019
Published international application - A1
Jun 11, 2019
Drawings
Jun 11, 2019
Incoming letter related to PCT RO
Jun 6, 2019
(Electronic) Receipt
Jun 6, 2019
Incoming letter related to PCT RO
Jun 6, 2019
Incoming letter related to PCT RO
Jun 6, 2019
Substitute sheet (R26) - Drawings
May 22, 2019
Invitation to correct defects in the international application
May 22, 2019
Notification of the international application number and of the international filing date
May 13, 2019
(Electronic) Receipt
May 13, 2019
Abstract
May 13, 2019
Claims
May 13, 2019
Description
May 13, 2019
Document concerning fees and payments
May 13, 2019
Drawings
May 13, 2019
Electronic request for grant of an International application
May 13, 2019
Priority document (RO-procedure)

EP3793727

UMICORE

Application Number: EP19723121A
Filing Date: May 13, 2019
Status: Opposition Rejected; Jul 18, 2025
Publication Date: Jun 22, 2022
External Links: Slate, Register , Google Patents

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Dossier Documents

EP3793727