Liquid Crystal Composition

Patent No. EP2937402 (titled "Liquid Crystal Composition") was filed by Huizhou Foryou Optical Technology on Jun 17, 2014. 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
BASF	Aug 16, 2021	BASF ASSOCIATION
SICPA HOLDING	Aug 12, 2021	HOFFMANN EITLE

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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Jun 17, 2025
Decision of the Board of Appeal
Jun 17, 2025
F3032 Notification(s) of the decision
Jun 17, 2025
F3032 Notification(s) of the decision
Jun 17, 2025
F3032 Notification(s) of the decision
Apr 10, 2025
F3013 Oral Proceedings: Forwarding minutes
Apr 10, 2025
F3316 Oral Proceedings: Minutes (Appellant: Opponent)
Apr 4, 2025
(Electronic) Receipt
Apr 4, 2025
(Electronic) Receipt
Apr 4, 2025
F3345 Forwarding of submissions to parties
Apr 4, 2025
F3345 Forwarding of submissions to parties
Apr 4, 2025
Letter accompanying subsequently filed items
Apr 4, 2025
Letter accompanying subsequently filed items
Apr 4, 2025
Letter dealing with oral proceedings during the appeal procedure
Apr 4, 2025
Letter dealing with oral proceedings during the appeal procedure
Mar 12, 2025
F3345 Forwarding of submissions to parties
Mar 12, 2025
F3345 Forwarding of submissions to parties
Mar 7, 2025
(Electronic) Receipt
Mar 7, 2025
Letter accompanying subsequently filed items
Mar 7, 2025
Letter dealing with oral proceedings during the appeal procedure
Feb 26, 2025
F3345 Forwarding of submissions to parties
Feb 26, 2025
F3345 Forwarding of submissions to parties
Feb 25, 2025
(Electronic) Receipt
Feb 25, 2025
Letter accompanying subsequently filed items
Feb 25, 2025
Letter dealing with oral proceedings during the appeal procedure
Oct 22, 2024
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Oct 22, 2024
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Oct 22, 2024
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Jun 25, 2024
F3011.1 Oral Proceedings: summons
Jun 25, 2024
F3011.1 Oral Proceedings: summons
Jun 25, 2024
F3011.1 Oral Proceedings: summons
Jun 20, 2024
F3010 Oral proceedings: order for summons
Feb 20, 2024
F3345 Forwarding of submissions to parties
Feb 20, 2024
F3345 Forwarding of submissions to parties
Feb 14, 2024
(Electronic) Receipt
Feb 14, 2024
Letter accompanying subsequently filed items
Feb 14, 2024
Letter relating to Appeal Procedure
Nov 27, 2023
Letter accompanying subsequently filed items
Oct 20, 2023
F3345 Forwarding of submissions to parties
Oct 20, 2023
F3345 Forwarding of submissions to parties
Oct 16, 2023
(Electronic) Receipt
Oct 16, 2023
Authorisation
Oct 16, 2023
Authorisation
Oct 16, 2023
Letter accompanying subsequently filed items
Oct 13, 2023
F3345 Forwarding of submissions to parties
Oct 13, 2023
F3345 Forwarding of submissions to parties
Oct 9, 2023
Composition of the board (T)
Oct 4, 2023
(Electronic) Receipt
Oct 4, 2023
Amended claims with annotations
Oct 4, 2023
Annexes (other than cited documents) regarding appeal procedure
Oct 4, 2023
Annexes (other than cited documents) regarding appeal procedure
Oct 4, 2023
Annexes filed during the Appeal procedure
Oct 4, 2023
Auxiliary request during appeals procedure - 01
Oct 4, 2023
Claims
Oct 4, 2023
Letter accompanying subsequently filed items
Oct 4, 2023
Reply to appeal
May 30, 2023
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
May 30, 2023
F3345 Forwarding of submissions to parties
May 30, 2023
F3345 Forwarding of submissions to parties
May 24, 2023
(Electronic) Receipt
May 24, 2023
Annexes (other than cited documents) regarding appeal procedure
May 24, 2023
Citation in appeal procedure - 022
May 24, 2023
Letter accompanying subsequently filed items
May 24, 2023
Statement of grounds of appeal
May 12, 2023
(Electronic) Receipt
May 12, 2023
Citation in appeal procedure - 001
May 12, 2023
Citation in appeal procedure - 002
May 12, 2023
Citation in appeal procedure - 003
May 12, 2023
Citation in appeal procedure - 004
May 12, 2023
Citation in appeal procedure - 005
May 12, 2023
Citation in appeal procedure - 006
May 12, 2023
Citation in appeal procedure - 007
May 12, 2023
Citation in appeal procedure - 008
May 12, 2023
Citation in appeal procedure - 009
May 12, 2023
Citation in appeal procedure - 010
May 12, 2023
Citation in appeal procedure - 011
May 12, 2023
Citation in appeal procedure - 012
May 12, 2023
Citation in appeal procedure - 013
May 12, 2023
Citation in appeal procedure - 014
May 12, 2023
Citation in appeal procedure - 015
May 12, 2023
Citation in appeal procedure - 016
May 12, 2023
Citation in appeal procedure - 017
May 12, 2023
Citation in appeal procedure - 018
May 12, 2023
Citation in appeal procedure - 019
May 12, 2023
Citation in appeal procedure - 020
May 12, 2023
Citation in appeal procedure - 021
May 12, 2023
Citation in appeal procedure - 021
May 12, 2023
Citation in appeal procedure - 021
May 12, 2023
Citation in appeal procedure - 022
May 12, 2023
Citation in appeal procedure - 023
May 12, 2023
Citation in appeal procedure - 024
May 12, 2023
Citation in appeal procedure - 025
May 12, 2023
Citation in appeal procedure - 026
May 12, 2023
Citation in appeal procedure - 027
May 12, 2023
Citation in appeal procedure - 028
May 12, 2023
Letter accompanying subsequently filed items
May 12, 2023
Statement of grounds of appeal
Mar 24, 2023
F3204 Communication of the file number to the parties
Mar 24, 2023
F3204 Communication of the file number to the parties
Mar 21, 2023
(Electronic) Receipt
Mar 21, 2023
Letter accompanying subsequently filed items
Mar 21, 2023
Notice of appeal
Mar 17, 2023
(Electronic) Receipt
Mar 17, 2023
Letter accompanying subsequently filed items
Mar 17, 2023
Notice of appeal
Feb 2, 2023
Advice of delivery
Jan 23, 2023
Advice of delivery
Jan 20, 2023
Annex to the communication - opposition
Jan 20, 2023
Decision of the Opposition Division and instruction
Jan 20, 2023
Druckexemplar in opposition procedure
Jan 20, 2023
Grounds for the decision (Annex) - opposition
Jan 20, 2023
Interlocutory decision in opposition proceedings
Jan 20, 2023
Interlocutory decision in opposition proceedings
Jan 20, 2023
Interlocutory decision in opposition proceedings
Jan 20, 2023
Means of redress
Jan 20, 2023
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Jan 20, 2023
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Jan 20, 2023
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Jan 20, 2023
Provision of a copy of the minutes - opposition procedure
Jan 20, 2023
Provision of a copy of the minutes - opposition procedure
Jan 20, 2023
Provision of a copy of the minutes - opposition procedure
Jan 20, 2023
Scanned annex to a communication - opposition procedure
Jan 20, 2023
Scanned annex to a communication - opposition procedure
Jan 20, 2023
Transmittal of decision / summons - opposition
Jan 20, 2023
Transmittal of decision / summons - opposition
Jan 20, 2023
Transmittal of decision / summons - opposition
Dec 1, 2022
Information about the result of oral proceedings
Nov 29, 2022
Brief communication - Opposition proceedings
Nov 29, 2022
Brief communication - Opposition proceedings
Nov 29, 2022
Brief communication - Opposition proceedings
Nov 29, 2022
Brief communication - Opposition proceedings
Nov 28, 2022
(Electronic) Receipt
Nov 28, 2022
(Electronic) Receipt
Nov 28, 2022
Any annexes (other than citation) to an opposition letter
Nov 28, 2022
Any annexes (other than citation) to an opposition letter
Nov 28, 2022
Citation in opposition procedure - 021
Nov 28, 2022
Citation in opposition procedure - 021
Nov 28, 2022
Consolidated list of cited opposition documents
Nov 28, 2022
Letter accompanying subsequently filed items
Nov 28, 2022
Letter accompanying subsequently filed items
Nov 28, 2022
Written submission in preparation to/during oral proceedings
Nov 28, 2022
Written submission in preparation to/during oral proceedings
Nov 28, 2022
Written submission in preparation to/during oral proceedings
Nov 21, 2022
Brief communication - Opposition proceedings
Nov 21, 2022
Brief communication - Opposition proceedings
Nov 16, 2022
(Electronic) Receipt
Nov 16, 2022
Letter accompanying subsequently filed items
Nov 16, 2022
Written submission in preparation to/during oral proceedings
Nov 7, 2022
Brief communication - Opposition proceedings
Nov 7, 2022
Brief communication - Opposition proceedings
Nov 2, 2022
(Electronic) Receipt
Nov 2, 2022
Letter accompanying subsequently filed items
Nov 2, 2022
Written submission in preparation to/during oral proceedings
Oct 17, 2022
(Electronic) Receipt
Oct 6, 2022
Brief communication - Opposition proceedings
Oct 6, 2022
Brief communication - Opposition proceedings
Oct 6, 2022
Brief communication - Opposition proceedings
Oct 6, 2022
Brief communication - Opposition proceedings
Sep 30, 2022
Letter accompanying subsequently filed items
Sep 30, 2022
Request for interpreters during oral proceedings
Sep 29, 2022
(Electronic) Receipt
Sep 29, 2022
Auxiliary request during Opposition procedure
Sep 29, 2022
Auxiliary request during Opposition procedure - 01
Sep 29, 2022
Letter accompanying subsequently filed items
Sep 29, 2022
Main request during Opposition procedure
Sep 29, 2022
Main request during Opposition procedure
Sep 29, 2022
Written submission in preparation to/during oral proceedings
Sep 23, 2022
Brief communication - Opposition proceedings
Sep 23, 2022
Brief communication - Opposition proceedings
Sep 15, 2022
(Electronic) Receipt
Sep 15, 2022
Letter accompanying subsequently filed items
Sep 15, 2022
Written submission in preparation to/during oral proceedings
Jul 7, 2022
(Electronic) Receipt
Jul 7, 2022
Advice of delivery
Jul 7, 2022
Advice of delivery
Jul 7, 2022
Letter accompanying subsequently filed items
Jul 5, 2022
Annex to the communication - opposition
Jul 5, 2022
Information concerning oral proceedings
Jul 5, 2022
Scanned annex to a communication - opposition procedure
Jul 5, 2022
Summons to attend oral proceedings
Jul 5, 2022
Summons to attend oral proceedings
Jul 5, 2022
Summons to attend oral proceedings
Jul 5, 2022
Transmittal of decision / summons - opposition
Jul 5, 2022
Transmittal of decision / summons - opposition
Mar 10, 2022
Brief communication - Opposition proceedings
Mar 10, 2022
Brief communication - Opposition proceedings
Mar 7, 2022
(Electronic) Receipt
Mar 7, 2022
Citation in opposition procedure - 020
Mar 7, 2022
Letter accompanying subsequently filed items
Mar 7, 2022
Letter regarding the opposition procedure (no time limit)
Jan 7, 2022
Brief communication - Opposition proceedings
Jan 7, 2022
Brief communication - Opposition proceedings
Dec 24, 2021
(Electronic) Receipt
Dec 24, 2021
Amended description with annotations
Dec 24, 2021
Amended description with annotations
Dec 24, 2021
Amended description with annotations
Dec 24, 2021
Auxiliary request during Opposition procedure
Dec 24, 2021
Auxiliary request during Opposition procedure
Dec 24, 2021
Auxiliary request during Opposition procedure - 01
Dec 24, 2021
Auxiliary request during Opposition procedure - 02
Dec 24, 2021
Description
Dec 24, 2021
Description
Dec 24, 2021
Description
Dec 24, 2021
Letter accompanying subsequently filed items
Dec 24, 2021
Main request during Opposition procedure
Dec 24, 2021
Main request during Opposition procedure
Dec 24, 2021
Reply of the patent proprietor to the notice(s) of opposition
Sep 2, 2021
Communication of a notice of opposition and request to file observations
Sep 2, 2021
Notice of further oppositions to opponent(s)
Sep 2, 2021
Notice of further oppositions to opponent(s)
Aug 20, 2021
Communication of a notice of opposition - first information to patent proprietor
Aug 18, 2021
Communication of a notice of opposition - first information to patent proprietor
Aug 16, 2021
(Electronic) Receipt
Aug 16, 2021
Citation in opposition procedure - 013
Aug 16, 2021
Citation in opposition procedure - 014
Aug 16, 2021
Citation in opposition procedure - 015
Aug 16, 2021
Citation in opposition procedure - 016
Aug 16, 2021
Citation in opposition procedure - 017
Aug 16, 2021
Citation in opposition procedure - 018
Aug 16, 2021
Citation in opposition procedure - 019
Aug 16, 2021
Letter accompanying subsequently filed items
Aug 16, 2021
Notice of opposition
Aug 16, 2021
Patent document cited during the opposition procedure
Aug 16, 2021
Patent document cited during the opposition procedure
Aug 16, 2021
Patent document cited during the opposition procedure
Aug 16, 2021
Patent document cited during the opposition procedure
Aug 16, 2021
Patent document cited during the opposition procedure
Aug 16, 2021
Patent document cited during the opposition procedure
Aug 12, 2021
(Electronic) Receipt
Aug 12, 2021
Any annexes (other than citation) to an opposition letter
Aug 12, 2021
Citation in opposition procedure - 001
Aug 12, 2021
Citation in opposition procedure - 002
Aug 12, 2021
Citation in opposition procedure - 003
Aug 12, 2021
Citation in opposition procedure - 004
Aug 12, 2021
Citation in opposition procedure - 005
Aug 12, 2021
Citation in opposition procedure - 006
Aug 12, 2021
Citation in opposition procedure - 007
Aug 12, 2021
Citation in opposition procedure - 008
Aug 12, 2021
Citation in opposition procedure - 009
Aug 12, 2021
Citation in opposition procedure - 010
Aug 12, 2021
Citation in opposition procedure - 011
Aug 12, 2021
Citation in opposition procedure - 012
Aug 12, 2021
Notice of opposition
Aug 12, 2021
Notice of opposition
Mar 8, 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 6, 2020
Communication concerning the filing of a power of attorney
Oct 6, 2020
Communication of amended entries concerning the representative
Sep 29, 2020
(Electronic) Receipt
Sep 29, 2020
Authorisation
Sep 29, 2020
Filing of the translations of the claims
Sep 29, 2020
French translation of claims
Sep 29, 2020
German translation of the claims
Sep 29, 2020
Letter accompanying subsequently filed items
Jun 24, 2020
Acknowledgement of receipt of third party observations
Jun 24, 2020
Transmittal of third party observations to applicant
Jun 19, 2020
Information about non-relevance of third-party observations
Jun 18, 2020
Observations by third parties
Jun 3, 2020
Bibliographic data of the European patent application
Jun 3, 2020
Communication about intention to grant a European patent
Jun 3, 2020
Intention to grant (signatures)
Jun 3, 2020
Text intended for grant (clean copy)
Jun 3, 2020
Text intended for grant (version for approval)
Apr 1, 2020
(Electronic) Receipt
Apr 1, 2020
(Electronic) Receipt
Apr 1, 2020
Amended claims with annotations
Apr 1, 2020
Amended claims with annotations
Apr 1, 2020
Amended description with annotations
Apr 1, 2020
Amended description with annotations
Apr 1, 2020
Claims
Apr 1, 2020
Claims
Apr 1, 2020
Description
Apr 1, 2020
Description
Apr 1, 2020
Letter accompanying subsequently filed items
Apr 1, 2020
Letter accompanying subsequently filed items
Apr 1, 2020
Reply to communication from the Examining Division
Apr 1, 2020
Reply to communication from the Examining Division
Dec 4, 2019
Annex to the communication
Dec 4, 2019
Communication from the Examining Division
Nov 13, 2019
Observations by third parties
Oct 14, 2019
Bibliographic data of the European patent application
Oct 14, 2019
Communication about intention to grant a European patent
Oct 14, 2019
Intention to grant (signatures)
Oct 14, 2019
Text intended for grant (clean copy)
Oct 14, 2019
Text intended for grant (version for approval)
Jul 22, 2019
(Electronic) Receipt
Jul 22, 2019
Amended claims with annotations
Jul 22, 2019
Amended description with annotations
Jul 22, 2019
Claims
Jul 22, 2019
Description
Jul 22, 2019
Letter accompanying subsequently filed items
Jul 22, 2019
Reply to communication from the Examining Division
Mar 22, 2019
Annex to the communication
Mar 22, 2019
Communication from the Examining Division
Feb 1, 2019
(Electronic) Receipt
Feb 1, 2019
Amended claims with annotations
Feb 1, 2019
Amended description with annotations
Feb 1, 2019
Claims
Feb 1, 2019
Description
Feb 1, 2019
Letter accompanying subsequently filed items
Feb 1, 2019
Reply to communication from the Examining Division
Oct 5, 2018
Annex to the communication
Oct 5, 2018
Communication from the Examining Division
Sep 10, 2018
Transmittal of third party observations to applicant
Aug 31, 2018
Citation filed by a third party
Aug 31, 2018
Citation filed by a third party
Aug 31, 2018
Citation filed by a third party
Aug 31, 2018
Observations by third parties
Aug 31, 2018
Observations by third parties
Jul 20, 2018
(Electronic) Receipt
Jul 20, 2018
Amended claims with annotations
Jul 20, 2018
Amended description with annotations
Jul 20, 2018
Claims
Jul 20, 2018
Description
Jul 20, 2018
Letter accompanying subsequently filed items
Jul 20, 2018
Reply to communication from the Examining Division
Mar 23, 2018
Annex to the communication
Mar 23, 2018
Communication from the Examining Division
Dec 14, 2017
(Electronic) Receipt
Dec 14, 2017
Amended claims with annotations
Dec 14, 2017
Amended description with annotations
Dec 14, 2017
Claims
Dec 14, 2017
Description
Dec 14, 2017
Letter accompanying subsequently filed items
Dec 14, 2017
Reply to communication from the Examining Division
Aug 18, 2017
Annex to the communication
Aug 18, 2017
Communication from the Examining Division
Aug 2, 2017
Examination started
Apr 28, 2017
(Electronic) Receipt
Apr 28, 2017
Amended claims filed after receipt of (European) search report
Apr 28, 2017
Amended claims with annotations
Apr 28, 2017
Amended description filed after receipt of (European) search report
Apr 28, 2017
Amended description with annotations
Apr 28, 2017
Amendments received before examination
Apr 28, 2017
Letter accompanying subsequently filed items
Nov 2, 2016
Invitation to declare maintenance of the application and to correct deficiencies in the Written Opinion/amend application
Oct 13, 2016
Communication regarding the transmission of the European search report
Oct 13, 2016
European search opinion
Oct 13, 2016
Information on Search Strategy
Oct 13, 2016
Supplementary European search report
Sep 26, 2016
Search started
Jul 6, 2016
Communication to designated inventor
Jul 6, 2016
Communication to designated inventor
Jun 27, 2016
(Electronic) Receipt
Jun 27, 2016
Letter concerning fees and payments
May 19, 2016
(Electronic) Receipt
May 19, 2016
Letter concerning the inventor
Mar 29, 2016
Invitation to indicate correct address of inventor
Mar 29, 2016
Invitation to indicate correct address of inventor
Mar 17, 2016
Letter which had not been notified
Mar 17, 2016
Letter which had not been notified
Mar 10, 2016
Communication of amended entries concerning the representative
Feb 29, 2016
Submission concerning change of applicant's representative
Jan 26, 2016
Communication to designated inventor
Jan 26, 2016
Communication to designated inventor
Jan 26, 2016
Communication to designated inventor
Jan 5, 2016
Copy of the international preliminary report on patentability
Jan 5, 2016
Translation of the international preliminary report on patentability
Sep 30, 2015
Notification of forthcoming publication
Jul 31, 2015
Communication regarding possible amendment of the application/payment of claims fee
Jul 23, 2015
Matter concerning the application
Jun 22, 2015
Information regarding early processing
May 18, 2015
(Electronic) Receipt
May 18, 2015
Abstract
May 18, 2015
Amended claims filed after receipt of (European) search report
May 18, 2015
Claims
May 18, 2015
Description
May 18, 2015
Priority search results
May 18, 2015
Priority search results
May 18, 2015
Request for entry into the European phase
Jan 12, 2015
Priority document (electronically transmitted)
Dec 24, 2014
Copy of the international search report
Dec 24, 2014
Copy of the translated international search report
Dec 24, 2014
International publication pamphlet

EP2937402

HUIZHOU FORYOU OPTICAL TECHNOLOGY

Application Number: EP14814288A
Filing Date: Jun 17, 2014
Status: Revoked; Jun 18, 2025
Publication Date: Nov 18, 2020
External Links: Slate, Register , Google Patents

IP Verse

Liquid Crystal Composition

Patent Summary

Patent Family

Patent Oppositions (2)

Dossier Documents

EP2937402