Fused Spinel-Zirconia Grains And Refractory Product Obtained From Said Grains

Patent No. EP3365304 (titled "Fused Spinel-Zirconia Grains And Refractory Product Obtained From Said Grains") was filed by Saint Gobain on Oct 19, 2016. The application was issued on Aug 14, 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
REFRACTORY	May 13, 2020	BERKENBRINK

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 24, 2022
Communication to the parties concerning the termination of the opposition proceedings (proprietor)
Feb 21, 2022
Termination of the opposition proceedings with maintenance of patent
Nov 30, 2021
(Electronic) Receipt
Nov 30, 2021
Advice of delivery
Nov 30, 2021
Letter accompanying subsequently filed items
Nov 11, 2021
Decision to discontinue the opposition proceedings
Nov 11, 2021
Notification concerning the date of oral proceedings
Nov 11, 2021
Transmittal of decision / summons - opposition
Nov 10, 2021
Brief communication - Opposition proceedings
Nov 10, 2021
Brief communication - Opposition proceedings
Nov 5, 2021
(Electronic) Receipt
Nov 5, 2021
Letter accompanying subsequently filed items
Nov 5, 2021
Withdrawal of an opposition
Sep 15, 2021
Brief communication - Opposition proceedings
Sep 15, 2021
Brief communication - Opposition proceedings
Sep 9, 2021
(Electronic) Receipt
Sep 9, 2021
(Electronic) Receipt
Sep 9, 2021
Auxiliary request during Opposition procedure
Sep 9, 2021
Auxiliary request during Opposition procedure
Sep 9, 2021
Auxiliary request during Opposition procedure
Sep 9, 2021
Auxiliary request during Opposition procedure
Sep 9, 2021
Auxiliary request during Opposition procedure
Sep 9, 2021
Auxiliary request during Opposition procedure
Sep 9, 2021
Auxiliary request during Opposition procedure
Sep 9, 2021
Auxiliary request during Opposition procedure
Sep 9, 2021
Auxiliary request during Opposition procedure
Sep 9, 2021
Auxiliary request during Opposition procedure
Sep 9, 2021
Auxiliary request during Opposition procedure
Sep 9, 2021
Auxiliary request during Opposition procedure - 01
Sep 9, 2021
Auxiliary request during Opposition procedure - 02
Sep 9, 2021
Auxiliary request during Opposition procedure - 03
Sep 9, 2021
Auxiliary request during Opposition procedure - 04
Sep 9, 2021
Auxiliary request during Opposition procedure - 05
Sep 9, 2021
Auxiliary request during Opposition procedure - 06
Sep 9, 2021
Auxiliary request during Opposition procedure - 07
Sep 9, 2021
Auxiliary request during Opposition procedure - 08
Sep 9, 2021
Auxiliary request during Opposition procedure - 09
Sep 9, 2021
Auxiliary request during Opposition procedure - 10
Sep 9, 2021
Auxiliary request during Opposition procedure - 11
Sep 9, 2021
Citation in opposition procedure - 005
Sep 9, 2021
Citation in opposition procedure - 006
Sep 9, 2021
Citation in opposition procedure - 008
Sep 9, 2021
Citation in opposition procedure - 009
Sep 9, 2021
Consolidated list of cited opposition documents
Sep 9, 2021
Letter accompanying subsequently filed items
Sep 9, 2021
Letter accompanying subsequently filed items
Sep 9, 2021
Written submission in preparation to/during oral proceedings
Sep 9, 2021
Written submission in preparation to/during oral proceedings
Jul 29, 2021
Notification concerning the date of oral proceedings
Jul 29, 2021
Notification concerning the date of oral proceedings
May 25, 2021
Brief communication - Opposition proceedings
May 19, 2021
(Electronic) Receipt
May 19, 2021
Letter accompanying subsequently filed items
May 19, 2021
Request for interpreters during oral proceedings
May 12, 2021
Advice of delivery
May 6, 2021
Annex to the communication - opposition
May 6, 2021
Information concerning oral proceedings
May 6, 2021
Summons to attend oral proceedings
May 6, 2021
Summons to attend oral proceedings
May 6, 2021
Transmittal of decision / summons - opposition
May 6, 2021
Transmittal of decision / summons - opposition
Apr 20, 2021
Brief communication - Opposition proceedings
Apr 14, 2021
(Electronic) Receipt
Apr 14, 2021
Citation in opposition procedure - 007
Apr 14, 2021
Letter accompanying subsequently filed items
Apr 14, 2021
Reply of the patent proprietor to the notice(s) of opposition
Feb 10, 2021
Brief communication - Opposition proceedings
Feb 2, 2021
(Electronic) Receipt
Feb 2, 2021
Letter accompanying subsequently filed items
Feb 2, 2021
Reply from the opponent to submission of proprietor
Oct 28, 2020
Brief communication - Opposition proceedings
Oct 19, 2020
(Electronic) Receipt
Oct 19, 2020
Auxiliary request during Opposition procedure - 01
Oct 19, 2020
Auxiliary request during Opposition procedure - 02
Oct 19, 2020
Letter accompanying subsequently filed items
Oct 19, 2020
Reply of the patent proprietor to the notice(s) of opposition
Jun 18, 2020
Communication of a notice of opposition and request to file observations
Jun 18, 2020
Notice of further oppositions to opponent(s)
May 18, 2020
Communication of a notice of opposition - first information to patent proprietor
May 13, 2020
(Electronic) Receipt
May 13, 2020
Citation in opposition procedure - 001
May 13, 2020
Citation in opposition procedure - 002
May 13, 2020
Citation in opposition procedure - 003
May 13, 2020
Citation in opposition procedure - 004
May 13, 2020
Citation in opposition procedure - 005
May 13, 2020
Citation in opposition procedure - 006
May 13, 2020
International publication (Pamphlet)
May 13, 2020
Letter accompanying subsequently filed items
May 13, 2020
Notice of opposition
May 11, 2020
Communication of the registration of a transfer or change of name and/or address
May 5, 2020
Letter accompanying subsequently filed items
May 5, 2020
Submission concerning change of applicant's address
May 5, 2020
Submission concerning change of applicant's address
Aug 26, 2019
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Jul 18, 2019
Decision to grant a European patent
Jul 11, 2019
Submission concerning representation
Jul 2, 2019
(Electronic) Receipt
Jul 2, 2019
English translation of the claims
Jul 2, 2019
Filing of the translations of the claims
Jul 2, 2019
German translation of the claims
Jul 2, 2019
Letter accompanying subsequently filed items
Apr 17, 2019
Bibliographic data of the European patent application
Apr 17, 2019
Communication about intention to grant a European patent
Apr 17, 2019
Intention to grant (signatures)
Apr 17, 2019
Text intended for grant (clean copy)
Apr 17, 2019
Text intended for grant (version for approval)
Mar 7, 2019
Examination started
Feb 20, 2019
Cancellation of communication under Rule 112(1) EPC
Feb 12, 2019
(Electronic) Receipt
Feb 12, 2019
Letter accompanying subsequently filed items
Feb 12, 2019
Request for a decision
Jan 14, 2019
Claim deemed abandoned
Dec 4, 2018
(Electronic) Receipt
Dec 4, 2018
Letter accompanying subsequently filed items
Dec 4, 2018
Reply to Written Opinion prepared by the EPO
Aug 1, 2018
Notification on forthcoming publication of bibliographic data
Jun 29, 2018
Invitation to indicate correct address of inventor
Jun 25, 2018
Letter which had not been notified
Jun 4, 2018
Communication concerning correction of deficiencies in written opinion/amendment of application/payment of claims fee
May 30, 2018
Communication to designated inventor
May 30, 2018
Communication to designated inventor
May 25, 2018
Priority search results copy provided by EPO
May 25, 2018
Priority search results copy provided by EPO
May 9, 2018
Copy of the international preliminary report on patentability
Mar 20, 2018
(Electronic) Receipt
Mar 20, 2018
Request for entry into the European phase
Mar 2, 2018
Information on entry into European phase
May 15, 2017
Priority document (electronically transmitted)
May 15, 2017
Priority document (electronically transmitted)
Apr 27, 2017
Copy of the international search report
Apr 27, 2017
Copy of the international search report
Apr 27, 2017
Published international application - A1
Mar 15, 2017
ISR: cited documents
Mar 15, 2017
International Search Report - copy in English for the IB
Mar 14, 2017
Written opinion of the ISA, boxes No. I to VIII
Mar 14, 2017
Written opinion of the ISA, cover sheet
Mar 14, 2017
Written opinion of the ISA, supplemental box
Dec 20, 2016
Notification of receipt of Search copy
Dec 8, 2016
Request form for international application (copy for ISA/EP)
Oct 19, 2016
Abstract
Oct 19, 2016
Claims
Oct 19, 2016
Description
Oct 19, 2016
Drawings

EP3365304

SAINT GOBAIN

Application Number: EP16806214A
Filing Date: Oct 19, 2016
Status: Granted And Under Opposition; Jul 12, 2019
Publication Date: Aug 14, 2019
External Links: Slate, Register , Google Patents

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Fused Spinel-Zirconia Grains And Refractory Product Obtained From Said Grains

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Dossier Documents

EP3365304