Composite Particles And Process For Production Thereof

Patent No. EP2540672 (titled "Composite Particles And Process For Production Thereof") was filed by Sakai Chemical Industry on Feb 1, 2011. The application was issued on Dec 7, 2016.

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
HUNTSMAN P&A GERMANY	Sep 7, 2017	NOBBE

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 13, 2023
Communication to the parties concerning the termination of the opposition proceedings (opponent)
Feb 13, 2023
Communication to the parties concerning the termination of the opposition proceedings (proprietor)
Feb 8, 2023
Termination of the opposition proceedings with revocation of patent
Nov 7, 2022
Advice of delivery
Oct 28, 2022
Advice of delivery
Oct 28, 2022
Decision revoking the European Patent (patent proprietor)
Oct 28, 2022
Decision revoking the European patent (opponent)
Oct 28, 2022
Transmittal of decision / summons - opposition
Oct 28, 2022
Transmittal of decision / summons - opposition
Jul 11, 2022
Advice of delivery
Jul 11, 2022
Brief communication - Opposition proceedings
Jul 11, 2022
Communication concerning surcharge and failure to observe time limit
Jul 11, 2022
Transmittal of decision / summons - opposition
Dec 21, 2021
Communication to opponent concerning maintenance
Dec 21, 2021
Communication with request to file translations
Dec 14, 2021
Maintenance of the patent with the documents specified in the final decision
Nov 22, 2021
Refund of fees
Nov 18, 2021
F3014 Oral Proceedings: Order cancelling/postponing
Nov 18, 2021
F3017 Oral Proceedings: Notification of cancellation/postponing
Nov 18, 2021
F3017 Oral Proceedings: Notification of cancellation/postponing
Nov 18, 2021
F3324 Closure of the appeal proceedings: withdrawal of the appeal/ application/ opposition
Nov 18, 2021
F3324 Closure of the appeal proceedings: withdrawal of the appeal/ application/ opposition
Nov 15, 2021
Withdrawal of an appeal
Oct 22, 2021
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Oct 22, 2021
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Oct 12, 2021
F3345 Forwarding of submissions to parties
Oct 7, 2021
(Electronic) Receipt
Oct 7, 2021
Letter accompanying subsequently filed items
Oct 7, 2021
Letter dealing with oral proceedings during the appeal procedure
Sep 22, 2021
Advice of delivery
Sep 20, 2021
F3011.1 Oral Proceedings: summons
Sep 20, 2021
F3011.1 Oral Proceedings: summons
Sep 15, 2021
F3010 Oral proceedings: order for summons
Sep 15, 2021
F3303.16 Change of composition of the Board (T)
Oct 9, 2020
Composition of the board (T)
Apr 20, 2020
F3345 Forwarding of submissions to parties
Apr 15, 2020
(Electronic) Receipt
Apr 15, 2020
Letter accompanying subsequently filed items
Apr 15, 2020
Letter relating to Appeal Procedure
Mar 5, 2020
F3345 Forwarding of submissions to parties
Mar 2, 2020
(Electronic) Receipt
Mar 2, 2020
Letter accompanying subsequently filed items
Mar 2, 2020
Reply to appeal
Dec 2, 2019
Communication of amended entries concerning the representative
Nov 25, 2019
Submission concerning change of applicant's representative
Nov 5, 2019
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Oct 30, 2019
(Electronic) Receipt
Oct 30, 2019
Letter accompanying subsequently filed items
Oct 30, 2019
Statement of grounds of appeal
Sep 6, 2019
F3204 Communication of the file number to the parties
Sep 6, 2019
F3204 Communication of the file number to the parties
Sep 2, 2019
(Electronic) Receipt
Sep 2, 2019
Letter accompanying subsequently filed items
Sep 2, 2019
Notice of appeal
Aug 15, 2019
Advice of delivery
Aug 1, 2019
Advice of delivery
Jul 8, 2019
Advice of delivery
Jul 4, 2019
Advice of delivery
Jul 2, 2019
Acknowledgement of a document
Jul 2, 2019
Acknowledgement of a document
Jul 2, 2019
Annex to the communication - opposition
Jul 2, 2019
Decision of the Opposition Division and instruction
Jul 2, 2019
Druckexemplar in opposition procedure
Jul 2, 2019
Grounds for the decision (Annex) - opposition
Jul 2, 2019
Interlocutory decision in opposition proceedings
Jul 2, 2019
Internal form - Opposition/addressees
Jul 2, 2019
Internal form - Opposition/addressees
Jul 2, 2019
Means of redress
Jul 2, 2019
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Jul 2, 2019
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Jul 2, 2019
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Jul 2, 2019
Provision of a copy of the minutes - opposition procedure
Jul 2, 2019
Scanned annex to a communication - opposition procedure
Apr 11, 2019
Information about the result of oral proceedings
Mar 26, 2019
Brief communication - Opposition proceedings
Mar 21, 2019
(Electronic) Receipt
Mar 21, 2019
Amended claims with annotations
Mar 21, 2019
Amended claims with annotations
Mar 21, 2019
Claims
Mar 21, 2019
Claims
Mar 21, 2019
Letter accompanying subsequently filed items
Mar 21, 2019
Written submission in preparation to/during oral proceedings
Mar 15, 2019
Brief communication - Opposition proceedings
Feb 20, 2019
Brief communication - Opposition proceedings
Feb 6, 2019
(Electronic) Receipt
Feb 6, 2019
Any annexes (other than citation) to an opposition letter
Feb 6, 2019
Letter accompanying subsequently filed items
Feb 6, 2019
Non-patent literature cited during the opposition procedure
Feb 6, 2019
Written submission in preparation to/during oral proceedings
Jan 30, 2019
(Electronic) Receipt
Jan 30, 2019
Letter accompanying subsequently filed items
Jan 30, 2019
Request for interpreters during oral proceedings
Oct 16, 2018
Advice of delivery
Oct 5, 2018
Advice of delivery
Oct 5, 2018
Advice of delivery
Sep 12, 2018
Advice of delivery
Sep 11, 2018
Advice of delivery
Sep 7, 2018
Acknowledgement of a document
Sep 7, 2018
Acknowledgement of a document
Sep 7, 2018
Annex to the communication - opposition
Sep 7, 2018
Information concerning oral proceedings
Sep 7, 2018
Information concerning oral proceedings
Sep 7, 2018
Preparation for oral proceedings
Sep 7, 2018
Summons to attend oral proceedings
Sep 7, 2018
Summons to attend oral proceedings
Feb 27, 2018
Brief communication - Opposition proceedings
Feb 21, 2018
(Electronic) Receipt
Feb 21, 2018
Amended claims with annotations
Feb 21, 2018
Amended claims with annotations
Feb 21, 2018
Amended claims with annotations
Feb 21, 2018
Amended claims with annotations
Feb 21, 2018
Amended claims with annotations
Feb 21, 2018
Auxiliary request during Opposition procedure
Feb 21, 2018
Auxiliary request during Opposition procedure
Feb 21, 2018
Auxiliary request during Opposition procedure
Feb 21, 2018
Auxiliary request during Opposition procedure
Feb 21, 2018
Auxiliary request during Opposition procedure
Feb 21, 2018
Letter regarding the opposition procedure (no time limit)
Feb 21, 2018
Patent document cited during the opposition procedure
Feb 21, 2018
Reply of the patent proprietor to the notice(s) of opposition
Oct 16, 2017
Communication of a notice of opposition and request to file observations
Oct 16, 2017
Notice of further oppositions to opponent(s)
Sep 14, 2017
Communication of a notice of opposition - first information to patent proprietor
Sep 7, 2017
(Electronic) Receipt
Sep 7, 2017
Notice of opposition
Sep 7, 2017
Notice of opposition
Sep 7, 2017
Patent document cited during the opposition procedure
Sep 7, 2017
Patent document cited during the opposition procedure
Sep 7, 2017
Patent document cited during the opposition procedure
Sep 7, 2017
Patent document cited during the opposition procedure
Sep 7, 2017
Patent document cited during the opposition procedure
Sep 7, 2017
Patent document cited during the opposition procedure
Sep 7, 2017
Patent document cited during the opposition procedure
Sep 7, 2017
Patent document cited during the opposition procedure
Sep 7, 2017
Patent document cited during the opposition procedure
Sep 7, 2017
Translation of the evidence during Opposition procedure
Sep 7, 2017
Translation of the evidence during Opposition procedure
Dec 7, 2016
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Nov 10, 2016
Decision to grant a European patent
Oct 18, 2016
(Electronic) Receipt
Oct 18, 2016
Filing of the translations of the claims
Oct 18, 2016
French translation of claims
Oct 18, 2016
German translation of the claims
Oct 18, 2016
Letter accompanying subsequently filed items
Aug 18, 2016
Bibliographic data of the European patent application
Aug 18, 2016
Communication about intention to grant a European patent
Aug 18, 2016
Intention to grant (signatures)
Aug 18, 2016
Text intended for grant (clean copy)
Aug 18, 2016
Text intended for grant (version for approval)
Jun 23, 2016
(Electronic) Receipt
Jun 23, 2016
Amended description with annotations
Jun 23, 2016
Description
Jun 23, 2016
Letter accompanying subsequently filed items
Jun 23, 2016
Reply to communication from the Examining Division
May 3, 2016
Annex to the communication
May 3, 2016
Communication from the Examining Division
Apr 21, 2016
Examination started
Jan 26, 2015
(Electronic) Receipt
Jan 26, 2015
Amended claims filed after receipt of (European) search report
Jan 26, 2015
Amended claims with annotations
Jan 26, 2015
Amendments received before examination
Jan 26, 2015
Letter accompanying subsequently filed items
Jul 17, 2014
Invitation to declare maintenance of the application and to correct deficiencies in the Written Opinion/amend application
Jun 30, 2014
Communication regarding the transmission of the European search report
Jun 30, 2014
European search opinion
Jun 30, 2014
Supplementary European search report
Jun 18, 2014
Search started
Dec 5, 2012
Notification of forthcoming publication
Oct 19, 2012
Communication regarding possible amendment of the application/payment of claims fee
Oct 2, 2012
Translation of the international preliminary report on patentability
Sep 26, 2012
Communication to designated inventor
Sep 26, 2012
Communication to designated inventor
Sep 26, 2012
Communication to designated inventor
Sep 26, 2012
Communication to designated inventor
Sep 26, 2012
Communication to designated inventor
Sep 18, 2012
Communication for party to proceedings/third party
Sep 11, 2012
(Electronic) Receipt
Sep 11, 2012
Abstract
Sep 11, 2012
Claims
Sep 11, 2012
Copy of the international preliminary report on patentability
Sep 11, 2012
Description
Sep 11, 2012
Drawings
Sep 11, 2012
Request for entry into the European phase
Jun 29, 2012
Information on entry into European phase
Sep 14, 2011
Priority document (electronically transmitted)
Aug 25, 2011
Copy of the international search report
Aug 25, 2011
Copy of the translated international search report
Aug 25, 2011
International publication pamphlet

EP2540672

SAKAI CHEMICAL INDUSTRY

Application Number: EP11744502A
Filing Date: Feb 1, 2011
Status: Revoked; Feb 10, 2023
Publication Date: Dec 7, 2016
External Links: Slate, Register , Google Patents

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Composite Particles And Process For Production Thereof

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Dossier Documents

EP2540672