Process For Preparing A Curable Silylated Polyurethane Resin

Patent No. EP2069415 (titled "Process For Preparing A Curable Silylated Polyurethane Resin") was filed by Momentive Performance Materials on Sep 20, 2007. The application was issued on Apr 21, 2021.

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
HENKEL	Jan 21, 2022	VIERING

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 3, 2026
Brief communication - Opposition proceedings
Feb 3, 2026
Brief communication - Opposition proceedings
Feb 3, 2026
Decision of the Opposition Division and instruction
Feb 3, 2026
Decision rejecting the opposition
Feb 3, 2026
Decision rejecting the opposition
Feb 3, 2026
Grounds for the decision (Annex) - opposition
Feb 3, 2026
Means of redress
Jan 19, 2026
Brief communication - Opposition proceedings
Jan 19, 2026
Notification concerning the date of oral proceedings
Jan 19, 2026
Notification concerning the date of oral proceedings
Jan 14, 2026
(Electronic) Receipt
Jan 14, 2026
Letter accompanying subsequently filed items
Jan 14, 2026
Withdrawal of a request for oral proceedings
Sep 24, 2025
Annex to the communication - opposition
Sep 24, 2025
Information concerning oral proceedings
Sep 24, 2025
Scanned annex to a communication - opposition procedure
Sep 24, 2025
Summons to attend oral proceedings
Sep 24, 2025
Summons to attend oral proceedings
Aug 20, 2025
Brief communication - Opposition proceedings
Aug 19, 2025
Communication of amended entries
Aug 19, 2025
Communication of amended entries
Jul 28, 2025
(Electronic) Receipt
Jul 28, 2025
Letter accompanying subsequently filed items
Jul 28, 2025
Request for change of opponent's representative
Jul 17, 2025
Decision of the Board of Appeal
Jul 17, 2025
F3032 Notification(s) of the decision
Jul 17, 2025
F3032 Notification(s) of the decision
May 13, 2025
F3013 Oral Proceedings: Forwarding minutes
May 13, 2025
F3013 Oral Proceedings: Forwarding minutes
May 13, 2025
F3315 Oral Proceedings: Minutes (Appellant : Proprietor)
Apr 8, 2025
F3345 Forwarding of submissions to parties
Apr 7, 2025
(Electronic) Receipt
Apr 7, 2025
Letter accompanying subsequently filed items
Apr 7, 2025
Letter dealing with oral proceedings during the appeal procedure
Apr 7, 2025
Letter dealing with oral proceedings during the appeal procedure
Apr 7, 2025
Request for interpreters during oral proceedings
Mar 26, 2025
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Mar 26, 2025
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Mar 26, 2025
F3345 Forwarding of submissions to parties
Mar 21, 2025
(Electronic) Receipt
Mar 21, 2025
Letter dealing with oral proceedings during the appeal procedure
Mar 21, 2025
Letter dealing with oral proceedings during the appeal procedure
Mar 21, 2025
Request for interpreters during oral proceedings
Jul 17, 2024
F3004 Communication of the Registry
Jul 17, 2024
F3004 Communication of the Registry
Jul 17, 2024
Oral proceedings: change of venue
Jul 17, 2024
Oral proceedings: change of venue
Jul 12, 2024
F3345 Forwarding of submissions to parties
Jul 10, 2024
(Electronic) Receipt
Jul 10, 2024
Letter dealing with oral proceedings during the appeal procedure
Jul 10, 2024
Letter dealing with oral proceedings during the appeal procedure
Jul 8, 2024
F3345 Forwarding of submissions to parties
Jul 5, 2024
(Electronic) Receipt
Jul 5, 2024
Letter accompanying subsequently filed items
Jul 5, 2024
Letter dealing with oral proceedings during the appeal procedure
Jun 27, 2024
F3004 Communication of the Registry
Jun 27, 2024
F3004 Communication of the Registry
Jun 27, 2024
F3011.1 Oral Proceedings: summons
Jun 27, 2024
F3011.1 Oral Proceedings: summons
Jun 25, 2024
F3010 Oral proceedings: order for summons
Jun 24, 2024
Composition of the board (T)
May 14, 2024
F3345 Forwarding of submissions to parties
May 10, 2024
(Electronic) Receipt
May 10, 2024
Amended claims with annotations
May 10, 2024
Amended claims with annotations
May 10, 2024
Amended claims with annotations
May 10, 2024
Amended claims with annotations
May 10, 2024
Amended claims with annotations
May 10, 2024
Amended claims with annotations
May 10, 2024
Amended claims with annotations
May 10, 2024
Auxiliary request during appeals procedure - 21
May 10, 2024
Auxiliary request during appeals procedure - 22
May 10, 2024
Auxiliary request during appeals procedure - 23
May 10, 2024
Auxiliary request during appeals procedure - 24
May 10, 2024
Auxiliary request during appeals procedure - 25
May 10, 2024
Auxiliary request during appeals procedure - 26
May 10, 2024
Auxiliary request during appeals procedure - 27
May 10, 2024
Letter accompanying subsequently filed items
May 10, 2024
Letter relating to Appeal Procedure
Mar 5, 2024
F3345 Forwarding of submissions to parties
Feb 29, 2024
(Electronic) Receipt
Feb 29, 2024
Letter accompanying subsequently filed items
Feb 29, 2024
Reply to appeal
Nov 10, 2023
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Nov 6, 2023
(Electronic) Receipt
Nov 6, 2023
Amended claims with annotations
Nov 6, 2023
Amended claims with annotations
Nov 6, 2023
Amended claims with annotations
Nov 6, 2023
Amended claims with annotations
Nov 6, 2023
Amended claims with annotations
Nov 6, 2023
Amended claims with annotations
Nov 6, 2023
Amended claims with annotations
Nov 6, 2023
Amended claims with annotations
Nov 6, 2023
Amended claims with annotations
Nov 6, 2023
Amended claims with annotations
Nov 6, 2023
Amended claims with annotations
Nov 6, 2023
Amended claims with annotations
Nov 6, 2023
Amended claims with annotations
Nov 6, 2023
Amended claims with annotations
Nov 6, 2023
Amended claims with annotations
Nov 6, 2023
Amended claims with annotations
Nov 6, 2023
Amended claims with annotations
Nov 6, 2023
Amended claims with annotations
Nov 6, 2023
Amended claims with annotations
Nov 6, 2023
Amended claims with annotations
Nov 6, 2023
Amended claims with annotations
Nov 6, 2023
Amended claims with annotations
Nov 6, 2023
Amended claims with annotations
Nov 6, 2023
Amended claims with annotations
Nov 6, 2023
Amended claims with annotations
Nov 6, 2023
Amended claims with annotations
Nov 6, 2023
Amended claims with annotations
Nov 6, 2023
Amended claims with annotations
Nov 6, 2023
Auxiliary request during appeals procedure - 01
Nov 6, 2023
Auxiliary request during appeals procedure - 02
Nov 6, 2023
Auxiliary request during appeals procedure - 03
Nov 6, 2023
Auxiliary request during appeals procedure - 04
Nov 6, 2023
Auxiliary request during appeals procedure - 05
Nov 6, 2023
Auxiliary request during appeals procedure - 06
Nov 6, 2023
Auxiliary request during appeals procedure - 07
Nov 6, 2023
Auxiliary request during appeals procedure - 08
Nov 6, 2023
Auxiliary request during appeals procedure - 09
Nov 6, 2023
Auxiliary request during appeals procedure - 10
Nov 6, 2023
Auxiliary request during appeals procedure - 11
Nov 6, 2023
Auxiliary request during appeals procedure - 12
Nov 6, 2023
Auxiliary request during appeals procedure - 13
Nov 6, 2023
Auxiliary request during appeals procedure - 14
Nov 6, 2023
Auxiliary request during appeals procedure - 15
Nov 6, 2023
Auxiliary request during appeals procedure - 16
Nov 6, 2023
Auxiliary request during appeals procedure - 17
Nov 6, 2023
Auxiliary request during appeals procedure - 18
Nov 6, 2023
Auxiliary request during appeals procedure - 19
Nov 6, 2023
Auxiliary request during appeals procedure - 20
Nov 6, 2023
Auxiliary request during appeals procedure - 21
Nov 6, 2023
Auxiliary request during appeals procedure - 22
Nov 6, 2023
Auxiliary request during appeals procedure - 23
Nov 6, 2023
Auxiliary request during appeals procedure - 24
Nov 6, 2023
Auxiliary request during appeals procedure - 25
Nov 6, 2023
Auxiliary request during appeals procedure - 26
Nov 6, 2023
Auxiliary request during appeals procedure - 27
Nov 6, 2023
Auxiliary request during appeals procedure - 28
Nov 6, 2023
Letter accompanying subsequently filed items
Nov 6, 2023
Main request during appeals procedure
Nov 6, 2023
Statement of grounds of appeal
Aug 31, 2023
F3204 Communication of the file number to the parties
Aug 31, 2023
F3204 Communication of the file number to the parties
Aug 28, 2023
(Electronic) Receipt
Aug 28, 2023
Letter accompanying subsequently filed items
Aug 28, 2023
Notice of appeal
Jul 13, 2023
Brief communication - Opposition proceedings
Jul 13, 2023
Brief communication - Opposition proceedings
Jul 11, 2023
Annex to the communication - opposition
Jul 7, 2023
Brief communication - Opposition proceedings
Jul 5, 2023
Advice of delivery
Jul 4, 2023
Letter regarding the opposition procedure (no time limit)
Jun 27, 2023
Annex to the communication - opposition
Jun 27, 2023
Decision of the Opposition Division and instruction
Jun 27, 2023
Decision revoking the European patent
Jun 27, 2023
Decision revoking the European patent
Jun 27, 2023
Grounds for the decision (Annex) - opposition
Jun 27, 2023
Means of redress
Jun 27, 2023
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Jun 27, 2023
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Jun 27, 2023
Provision of a copy of the minutes - opposition procedure
Jun 27, 2023
Provision of a copy of the minutes - opposition procedure
Jun 27, 2023
Scanned annex to a communication - opposition procedure
Jun 27, 2023
Scanned annex to a communication - opposition procedure
Jun 27, 2023
Transmittal of decision / summons - opposition
Jun 27, 2023
Transmittal of decision / summons - opposition
May 17, 2023
Information about the result of oral proceedings
Mar 23, 2023
Brief communication - Opposition proceedings
Mar 17, 2023
(Electronic) Receipt
Mar 17, 2023
(Electronic) Receipt
Mar 17, 2023
Auxiliary request during Opposition procedure
Mar 17, 2023
Auxiliary request during Opposition procedure
Mar 17, 2023
Auxiliary request during Opposition procedure
Mar 17, 2023
Auxiliary request during Opposition procedure
Mar 17, 2023
Auxiliary request during Opposition procedure
Mar 17, 2023
Auxiliary request during Opposition procedure
Mar 17, 2023
Auxiliary request during Opposition procedure - 01
Mar 17, 2023
Auxiliary request during Opposition procedure - 02
Mar 17, 2023
Auxiliary request during Opposition procedure - 03
Mar 17, 2023
Auxiliary request during Opposition procedure - 04
Mar 17, 2023
Auxiliary request during Opposition procedure - 05
Mar 17, 2023
Auxiliary request during Opposition procedure - 06
Mar 17, 2023
Letter accompanying subsequently filed items
Mar 17, 2023
Request for interpreters during oral proceedings
Mar 17, 2023
Written submission in preparation to/during oral proceedings
Mar 13, 2023
Brief communication - Opposition proceedings
Mar 6, 2023
Request for interpreters during oral proceedings
Feb 22, 2023
Notification concerning the date of oral proceedings
Feb 22, 2023
Notification concerning the date of oral proceedings
Oct 7, 2022
Advice of delivery
Oct 6, 2022
Advice of delivery
Sep 30, 2022
Information concerning oral proceedings
Sep 30, 2022
Notification concerning the date of oral proceedings
Sep 30, 2022
Notification concerning the date of oral proceedings
Sep 30, 2022
Summons to attend oral proceedings
Sep 30, 2022
Summons to attend oral proceedings
Sep 30, 2022
Transmittal of decision / summons - opposition
Sep 30, 2022
Transmittal of decision / summons - opposition
Sep 8, 2022
Brief communication - Opposition proceedings
Sep 5, 2022
Advice of delivery
Sep 1, 2022
(Electronic) Receipt
Sep 1, 2022
Any annexes (other than citation) to an opposition letter
Sep 1, 2022
Letter accompanying subsequently filed items
Sep 1, 2022
Oral proceedings: Request for postponement
Aug 29, 2022
Advice of delivery
Aug 26, 2022
Annex to the communication - opposition
Aug 26, 2022
Consolidated list of cited opposition documents
Aug 26, 2022
Information concerning oral proceedings
Aug 26, 2022
Summons to attend oral proceedings
Aug 26, 2022
Summons to attend oral proceedings
Aug 26, 2022
Transmittal of decision / summons - opposition
Aug 26, 2022
Transmittal of decision / summons - opposition
Jun 20, 2022
Brief communication - Opposition proceedings
Jun 10, 2022
(Electronic) Receipt
Jun 10, 2022
Letter accompanying subsequently filed items
Jun 10, 2022
Reply of the patent proprietor to the notice(s) of opposition
Feb 2, 2022
Communication of a notice of opposition and request to file observations
Feb 2, 2022
Notice of further oppositions to opponent(s)
Jan 26, 2022
Communication of a notice of opposition - first information to patent proprietor
Jan 21, 2022
(Electronic) Receipt
Jan 21, 2022
Citation in opposition procedure - 001
Jan 21, 2022
Citation in opposition procedure - 002
Jan 21, 2022
Citation in opposition procedure - 003
Jan 21, 2022
Citation in opposition procedure - 004
Jan 21, 2022
Citation in opposition procedure - 004
Jan 21, 2022
Citation in opposition procedure - 005
Jan 21, 2022
Consolidated list of cited opposition documents
Jan 21, 2022
Notice of opposition
Jan 21, 2022
Notice of opposition
May 4, 2021
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Mar 25, 2021
Decision to grant a European patent
Mar 16, 2021
(Electronic) Receipt
Mar 16, 2021
Annex
Mar 16, 2021
Filing of the translations of the claims
Mar 16, 2021
French translation of claims
Mar 16, 2021
German translation of the claims
Mar 16, 2021
Letter accompanying subsequently filed items
Feb 5, 2021
Document concerning representation
Dec 4, 2020
Bibliographic data of the European patent application
Dec 4, 2020
Communication about intention to grant a European patent
Dec 4, 2020
Intention to grant (signatures)
Dec 4, 2020
Text intended for grant (clean copy)
Dec 4, 2020
Text intended for grant (version for approval)
Oct 1, 2020
(Electronic) Receipt
Oct 1, 2020
Amended claims with annotations
Oct 1, 2020
Amended description with annotations
Oct 1, 2020
Claims
Oct 1, 2020
Description
Oct 1, 2020
Letter accompanying subsequently filed items
Oct 1, 2020
Reply to communication from the Examining Division
Jul 23, 2020
Annex to the communication
Jul 23, 2020
Communication from the Examining Division
Feb 28, 2020
(Electronic) Receipt
Feb 28, 2020
Amended claims with annotations
Feb 28, 2020
Claims
Feb 28, 2020
Letter accompanying subsequently filed items
Feb 28, 2020
Reply to communication from the Examining Division
Jan 2, 2020
Grant of extension of time limit (examination procedure)
Dec 17, 2019
(Electronic) Receipt
Dec 17, 2019
Letter accompanying subsequently filed items
Dec 17, 2019
Request for extension of time limit to communication from the Examining Division
Aug 20, 2019
Annex to the communication
Aug 20, 2019
Communication from the Examining Division
Jul 16, 2019
Response to enquiry for communication from the Examining Division
Jul 1, 2019
(Electronic) Receipt
Jul 1, 2019
Enquiry as to the processing of the file
Jul 1, 2019
Letter accompanying subsequently filed items
May 24, 2017
(Electronic) Receipt
May 24, 2017
Amended claims with annotations
May 24, 2017
Claims
May 24, 2017
Letter accompanying subsequently filed items
May 24, 2017
Reply to communication from the Examining Division
Apr 3, 2017
Grant of extension of time limit (examination procedure)
Mar 28, 2017
Request for extension of time limit to communication from the Examining Division
Nov 18, 2016
Annex to the communication
Nov 18, 2016
Communication from the Examining Division
Nov 15, 2016
Examination started
Aug 1, 2016
Notification regarding date of start of examination with possibility to withdraw
Aug 25, 2015
Communication of the registration of a transfer or change of name and/or address
Aug 19, 2015
Submission concerning change of applicant's address
Jan 31, 2014
CDS Clean up - amended data concerning the representative of the applicant (Association)
Sep 30, 2013
Communication of the registration of a transfer or change of name and/or address
Sep 24, 2013
Submission concerning change of applicant's representative
Jan 4, 2012
Submission concerning representation
Jan 3, 2012
Submission concerning representation
Jun 30, 2009
Letter concerning the inventor
Jun 3, 2009
Invitation to indicate correct address of inventor
May 25, 2009
Letter which had not been notified
May 20, 2009
Notification on forthcoming publication of bibliographic data
May 11, 2009
Communication regarding possible amendment of claims/payment of claims fees
Apr 20, 2009
(Electronic) Receipt
Apr 20, 2009
Amended claims filed after receipt of (European) search report
Apr 20, 2009
Amendments received before examination
Apr 20, 2009
Annex
Apr 20, 2009
Request for entry into the European phase
Apr 15, 2009
Copy of the international preliminary report on patentability
Jan 29, 2009
Information on entry into European phase
Apr 24, 2008
Priority document (electronically transmitted)
Mar 27, 2008
Copy of the international search report
Mar 27, 2008
Published international application - A1
Nov 12, 2007
Abstract
Nov 12, 2007
Claims
Nov 12, 2007
Description
Nov 12, 2007
Drawings

EP2069415

MOMENTIVE PERFORMANCE MATERIALS

Application Number: EP07838574A
Filing Date: Sep 20, 2007
Status: Granted And Under Opposition; Mar 19, 2021
Publication Date: Apr 21, 2021
External Links: Slate, Register , Google Patents

IP Verse

Process For Preparing A Curable Silylated Polyurethane Resin

Patent Summary

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Dossier Documents

EP2069415