Hollow Resin Particles And Use Of Same

Patent No. EP3495396 (titled "Hollow Resin Particles And Use Of Same") was filed by Matsumoto Yushi Seiyaku on Jul 7, 2017. The application was issued on Nov 18, 2020.

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
NOURYON CHEMICALS	Aug 17, 2021	INGRASSIA
NOURYON CHEMICALS	Aug 17, 2021	LKGLOBAL UK

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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Dec 22, 2025
Brief communication - Opposition proceedings
Dec 16, 2025
(Electronic) Receipt
Dec 16, 2025
Amended description with annotations
Dec 16, 2025
Amended description with annotations
Dec 16, 2025
Description
Dec 16, 2025
Description
Dec 16, 2025
Letter accompanying subsequently filed items
Dec 16, 2025
Reply to an examination report in opposition proceedings
Nov 4, 2025
Annex to the communication - opposition
Nov 4, 2025
Communication inviting the parties to file observations
Nov 4, 2025
Communication inviting the parties to file observations
Jul 4, 2025
Decision of the Board of Appeal
Jul 4, 2025
F3032 Notification(s) of the decision
Jul 4, 2025
F3032 Notification(s) of the decision
May 6, 2025
F3013 Oral Proceedings: Forwarding minutes
May 6, 2025
F3013 Oral Proceedings: Forwarding minutes
May 6, 2025
F3316 Oral Proceedings: Minutes (Appellant: Opponent)
Apr 10, 2025
F3345 Forwarding of submissions to parties
Apr 9, 2025
(Electronic) Receipt
Apr 9, 2025
Letter accompanying subsequently filed items
Apr 9, 2025
Letter dealing with oral proceedings during the appeal procedure
Apr 7, 2025
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Apr 7, 2025
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Apr 3, 2025
(Electronic) Receipt
Apr 3, 2025
Cited document during appeal procedure
Apr 3, 2025
Cited document during appeal procedure
Apr 3, 2025
F3345 Forwarding of submissions to parties
Apr 3, 2025
Letter accompanying subsequently filed items
Apr 3, 2025
Letter dealing with oral proceedings during the appeal procedure
Dec 23, 2024
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Dec 23, 2024
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Aug 30, 2024
F3004 Communication of the Registry
Aug 30, 2024
F3004 Communication of the Registry
Aug 30, 2024
F3345 Forwarding of submissions to parties
Aug 26, 2024
(Electronic) Receipt
Aug 26, 2024
Letter accompanying subsequently filed items
Aug 26, 2024
Letter dealing with oral proceedings during the appeal procedure
Aug 22, 2024
F3345 Forwarding of submissions to parties
Aug 20, 2024
(Electronic) Receipt
Aug 20, 2024
Letter accompanying subsequently filed items
Aug 20, 2024
Letter dealing with oral proceedings during the appeal procedure
Jun 26, 2024
F3004 Communication of the Registry
Jun 26, 2024
F3004 Communication of the Registry
Jun 26, 2024
F3011.1 Oral Proceedings: summons
Jun 26, 2024
F3011.1 Oral Proceedings: summons
Jun 25, 2024
F3010 Oral proceedings: order for summons
Jun 14, 2024
Composition of the board (T)
Jan 3, 2024
F3345 Forwarding of submissions to parties
Jan 3, 2024
F3345 Forwarding of submissions to parties
Dec 28, 2023
(Electronic) Receipt
Dec 28, 2023
Amended claims with annotations
Dec 28, 2023
Amended claims with annotations
Dec 28, 2023
Amended claims with annotations
Dec 28, 2023
Amended claims with annotations
Dec 28, 2023
Amended claims with annotations
Dec 28, 2023
Amended claims with annotations
Dec 28, 2023
Amended claims with annotations
Dec 28, 2023
Amended claims with annotations
Dec 28, 2023
Amended claims with annotations
Dec 28, 2023
Auxiliary request during appeals procedure - 01
Dec 28, 2023
Auxiliary request during appeals procedure - 02
Dec 28, 2023
Auxiliary request during appeals procedure - 03
Dec 28, 2023
Auxiliary request during appeals procedure - 04
Dec 28, 2023
Auxiliary request during appeals procedure - 05
Dec 28, 2023
Auxiliary request during appeals procedure - 06
Dec 28, 2023
Auxiliary request during appeals procedure - 07
Dec 28, 2023
Auxiliary request during appeals procedure - 08
Dec 28, 2023
Letter accompanying subsequently filed items
Dec 28, 2023
Main request during appeals procedure
Dec 28, 2023
Non-Patent Literature cited during the appeal procedure
Dec 28, 2023
Non-Patent Literature cited during the appeal procedure
Dec 28, 2023
Reply to appeal
Aug 18, 2023
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Aug 14, 2023
(Electronic) Receipt
Aug 14, 2023
Letter accompanying subsequently filed items
Aug 14, 2023
Statement of grounds of appeal
Jun 9, 2023
F3204 Communication of the file number to the parties
Jun 9, 2023
F3204 Communication of the file number to the parties
Jun 1, 2023
(Electronic) Receipt
Jun 1, 2023
Letter accompanying subsequently filed items
Jun 1, 2023
Notice of appeal
Apr 5, 2023
Advice of delivery
Apr 4, 2023
Annex to the communication - opposition
Apr 4, 2023
Decision of the Opposition Division and instruction
Apr 4, 2023
Druckexemplar in opposition procedure
Apr 4, 2023
Grounds for the decision (Annex) - opposition
Apr 4, 2023
Interlocutory decision in opposition proceedings
Apr 4, 2023
Interlocutory decision in opposition proceedings
Apr 4, 2023
Means of redress
Apr 4, 2023
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Apr 4, 2023
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Apr 4, 2023
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Apr 4, 2023
Provision of a copy of the minutes - opposition procedure
Apr 4, 2023
Provision of a copy of the minutes - opposition procedure
Apr 4, 2023
Scanned annex to a communication - opposition procedure
Apr 4, 2023
Transmittal of decision / summons - opposition
Apr 4, 2023
Transmittal of decision / summons - opposition
Jan 27, 2023
Brief communication - Opposition proceedings
Jan 26, 2023
Information about the result of oral proceedings
Jan 24, 2023
(Electronic) Receipt
Jan 24, 2023
Letter accompanying subsequently filed items
Jan 24, 2023
Written submission in preparation to/during oral proceedings
Jan 24, 2023
Written submission in preparation to/during oral proceedings
Jan 20, 2023
Brief communication - Opposition proceedings
Jan 16, 2023
(Electronic) Receipt
Jan 16, 2023
(Electronic) Receipt
Jan 16, 2023
Any annexes (other than citation) to an opposition letter
Jan 16, 2023
Auxiliary request during Opposition procedure - 02
Jan 16, 2023
Auxiliary request during Opposition procedure - 02
Jan 16, 2023
Citation in opposition procedure - 010
Jan 16, 2023
Consolidated list of cited opposition documents
Jan 16, 2023
Letter accompanying subsequently filed items
Jan 16, 2023
Letter accompanying subsequently filed items
Jan 16, 2023
Written submission in preparation to/during oral proceedings
Dec 23, 2022
Notification concerning the date of oral proceedings
Dec 21, 2022
Brief communication - Opposition proceedings
Dec 16, 2022
(Electronic) Receipt
Dec 16, 2022
Written submission in preparation to/during oral proceedings
Dec 1, 2022
Brief communication - Opposition proceedings
Nov 30, 2022
Brief communication - Opposition proceedings
Nov 28, 2022
Notification concerning the date of oral proceedings
Nov 28, 2022
Notification concerning the date of oral proceedings
Nov 25, 2022
(Electronic) Receipt
Nov 25, 2022
Citation in opposition procedure - 009
Nov 25, 2022
Letter accompanying subsequently filed items
Nov 25, 2022
Written submission in preparation to/during oral proceedings
Nov 24, 2022
(Electronic) Receipt
Nov 24, 2022
Auxiliary request during Opposition procedure
Nov 24, 2022
Auxiliary request during Opposition procedure - 06
Nov 24, 2022
Letter accompanying subsequently filed items
Nov 24, 2022
Written submission in preparation to/during oral proceedings
Oct 10, 2022
Brief communication - Opposition proceedings
Oct 10, 2022
Communication concerning the filing of a power of attorney
Oct 10, 2022
Communication of amended entries concerning the representative
Sep 1, 2022
(Electronic) Receipt
Sep 1, 2022
General authorisation
Sep 1, 2022
Letter accompanying subsequently filed items (CDR)
Sep 1, 2022
Submission concerning change of proprietor's representative
May 6, 2022
(Electronic) Receipt
May 6, 2022
Advice of delivery
May 6, 2022
Letter accompanying subsequently filed items
May 4, 2022
Advice of delivery
May 4, 2022
Annex to the communication - opposition
May 4, 2022
Information concerning oral proceedings
May 4, 2022
Scanned annex to a communication - opposition procedure
May 4, 2022
Summons to attend oral proceedings
May 4, 2022
Summons to attend oral proceedings
May 4, 2022
Transmittal of decision / summons - opposition
May 4, 2022
Transmittal of decision / summons - opposition
Jan 13, 2022
Brief communication - Opposition proceedings
Jan 7, 2022
(Electronic) Receipt
Jan 7, 2022
Auxiliary request during Opposition procedure
Jan 7, 2022
Auxiliary request during Opposition procedure
Jan 7, 2022
Auxiliary request during Opposition procedure
Jan 7, 2022
Auxiliary request during Opposition procedure
Jan 7, 2022
Auxiliary request during Opposition procedure
Jan 7, 2022
Auxiliary request during Opposition procedure - 01
Jan 7, 2022
Auxiliary request during Opposition procedure - 02
Jan 7, 2022
Auxiliary request during Opposition procedure - 03
Jan 7, 2022
Auxiliary request during Opposition procedure - 04
Jan 7, 2022
Auxiliary request during Opposition procedure - 05
Jan 7, 2022
Citation in opposition procedure - 008
Jan 7, 2022
Letter accompanying subsequently filed items
Jan 7, 2022
Main request during Opposition procedure
Jan 7, 2022
Main request during Opposition procedure
Jan 7, 2022
Reply of the patent proprietor to the notice(s) of opposition
Aug 30, 2021
Communication of a notice of opposition and request to file observations
Aug 30, 2021
Notice of further oppositions to opponent(s)
Aug 23, 2021
Communication of a notice of opposition - first information to patent proprietor
Aug 17, 2021
(Electronic) Receipt
Aug 17, 2021
Citation in opposition procedure - 001
Aug 17, 2021
Citation in opposition procedure - 002
Aug 17, 2021
Citation in opposition procedure - 002
Aug 17, 2021
Citation in opposition procedure - 003
Aug 17, 2021
Citation in opposition procedure - 004
Aug 17, 2021
Citation in opposition procedure - 005
Aug 17, 2021
Citation in opposition procedure - 006
Aug 17, 2021
Citation in opposition procedure - 007
Aug 17, 2021
Letter accompanying subsequently filed items
Aug 17, 2021
Notice of opposition
Aug 17, 2021
Notice of opposition
Apr 15, 2021
Document concerning representation
Nov 30, 2020
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Oct 22, 2020
Decision to grant a European patent
Oct 9, 2020
(Electronic) Receipt
Oct 9, 2020
Filing of the translations of the claims
Oct 9, 2020
French translation of claims
Oct 9, 2020
German translation of the claims
Aug 27, 2020
Request for a change to the title of the invention
Aug 17, 2020
(Electronic) Receipt
Aug 17, 2020
Letter accompanying subsequently filed items
Aug 17, 2020
Matter concerning the application
Aug 13, 2020
Document concerning representation
Jul 31, 2020
Bibliographic data of the European patent application
Jul 31, 2020
Communication about intention to grant a European patent
Jul 31, 2020
Intention to grant (signatures)
Jul 31, 2020
Text intended for grant (clean copy)
Jul 31, 2020
Text intended for grant (version for approval)
Jun 29, 2020
Examination started
May 28, 2020
(Electronic) Receipt
May 28, 2020
Amended claims filed after receipt of (European) search report
May 28, 2020
Amended claims with annotations
May 28, 2020
Amendments received before examination
May 28, 2020
Letter accompanying subsequently filed items
Jan 9, 2020
Invitation to declare maintenance of the application and to correct deficiencies in the Written Opinion/amend application
Dec 10, 2019
Communication regarding the transmission of the European search report
Dec 10, 2019
European search opinion
Dec 10, 2019
Information on Search Strategy
Dec 10, 2019
Supplementary European search report
Nov 29, 2019
Search started
May 15, 2019
Notification of forthcoming publication
Apr 25, 2019
Submission concerning representation
Mar 8, 2019
Communication regarding possible amendment of the application/payment of claims fee
Mar 8, 2019
Communication to designated inventor
Mar 8, 2019
Communication to designated inventor
Mar 4, 2019
Request for a change to the title of the invention
Feb 25, 2019
(Electronic) Receipt
Feb 25, 2019
Abstract
Feb 25, 2019
Claims
Feb 25, 2019
Copy of the international preliminary report on patentability
Feb 25, 2019
Description
Feb 25, 2019
Drawings
Feb 25, 2019
International publication (Pamphlet)
Feb 25, 2019
Request for correction of errors in filed documents
Feb 25, 2019
Request for entry into the European phase
Feb 25, 2019
Translation of the international preliminary report on patentability
Dec 12, 2018
Information on entry into European phase
Mar 1, 2018
Priority document (electronically transmitted)
Mar 1, 2018
Priority document (electronically transmitted)
Feb 8, 2018
Copy of the international search report
Feb 8, 2018
Copy of the translated international search report
Feb 8, 2018
International publication pamphlet

EP3495396

MATSUMOTO YUSHI SEIYAKU

Application Number: EP17836682A
Filing Date: Jul 7, 2017
Status: Granted And Under Opposition; Oct 16, 2020
Publication Date: Nov 18, 2020
External Links: Slate, Register , Google Patents

IP Verse

Hollow Resin Particles And Use Of Same

Patent Summary

Patent Family

Patent Oppositions (2)

Dossier Documents

EP3495396