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Plasticizer Composition, Resin Composition, And Preparation Method For Both Compositions

Patent No. EP3342794 (titled "Plasticizer Composition, Resin Composition, And Preparation Method For Both Compositions") was filed by LG Chem on Jun 13, 2017. The application was issued on Aug 27, 2025.

Patent Summary

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Patent Oppositions (2)

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
EVONIK OPERATIONS	Sep 9, 2021	EVONIK PATENT ASSOCIATION
EVONIK OPERATIONS	Sep 9, 2021	GODEMEYER BLUM LENZE PATENTANWALTE PARTNERSCHAFT MBB WERKPATENT

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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Jul 31, 2025
Decision to maintain the European patent in amended form
Jul 31, 2025
Decision to maintain the European patent in amended form
Jul 23, 2025
(Electronic) Receipt
Jul 23, 2025
French translation of claims
Jul 23, 2025
German translation of the claims
Jul 23, 2025
Letter accompanying subsequently filed items
Jul 2, 2025
Communication of bibliographic data
Jul 2, 2025
Communication to opponent concerning maintenance
Jul 2, 2025
Communication with request to file translations
Jun 26, 2025
Maintenance of the patent with the documents specified in the final decision
Jun 24, 2025
Decision of the Board of Appeal
Jun 24, 2025
Decision of the Board of Appeal
Jun 24, 2025
F3032 Notification(s) of the decision
Jun 24, 2025
F3032 Notification(s) of the decision
May 16, 2025
F3013 Oral Proceedings: Forwarding minutes
May 16, 2025
F3013 Oral Proceedings: Forwarding minutes
May 16, 2025
F3316 Oral Proceedings: Minutes (Appellant: Opponent)
May 16, 2025
F3316 Oral Proceedings: Minutes (Appellant: Opponent)
Apr 17, 2025
F3345 Forwarding of submissions to parties
Apr 16, 2025
(Electronic) Receipt
Apr 16, 2025
Letter accompanying subsequently filed items
Apr 16, 2025
Request for interpreters during oral proceedings
Apr 14, 2025
F3345 Forwarding of submissions to parties
Apr 11, 2025
(Electronic) Receipt
Apr 11, 2025
Letter accompanying subsequently filed items
Apr 11, 2025
Letter dealing with oral proceedings during the appeal procedure
Mar 28, 2025
Communication of amended entries in the Register of European Patents
Mar 28, 2025
F3345 Forwarding of submissions to parties
Mar 26, 2025
F3345 Forwarding of submissions to parties
Mar 25, 2025
(Electronic) Receipt
Mar 25, 2025
Letter accompanying subsequently filed items
Mar 25, 2025
Request concerning representative opponent
Mar 24, 2025
(Electronic) Receipt
Mar 24, 2025
Communication of amended entries in the Register of European Patents
Mar 24, 2025
Communication of amended entries in the Register of European Patents
Mar 24, 2025
F3345 Forwarding of submissions to parties
Mar 24, 2025
Letter accompanying subsequently filed items
Mar 24, 2025
Letter dealing with oral proceedings during the appeal procedure
Mar 19, 2025
(Electronic) Receipt
Mar 19, 2025
Letter accompanying subsequently filed items
Mar 19, 2025
Request for change of opponent's representative
Jan 8, 2025
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Jan 8, 2025
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Sep 10, 2024
F3345 Forwarding of submissions to parties
Sep 5, 2024
(Electronic) Receipt
Sep 5, 2024
Letter accompanying subsequently filed items
Sep 5, 2024
Letter dealing with oral proceedings during the appeal procedure
Aug 29, 2024
F3345 Forwarding of submissions to parties
Aug 29, 2024
Oral proceedings: change of venue
Aug 29, 2024
Oral proceedings: change of venue
Aug 26, 2024
(Electronic) Receipt
Aug 26, 2024
Letter dealing with oral proceedings during the appeal procedure
Jul 8, 2024
F3345 Forwarding of submissions to parties
Jul 4, 2024
(Electronic) Receipt
Jul 4, 2024
Letter dealing with oral proceedings during the appeal procedure
Jul 4, 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
Mar 21, 2024
F3345 Forwarding of submissions to parties
Mar 18, 2024
(Electronic) Receipt
Mar 18, 2024
Composition of the board (T)
Mar 18, 2024
Letter accompanying subsequently filed items
Mar 18, 2024
Letter relating to Appeal Procedure
Nov 27, 2023
F3345 Forwarding of submissions to parties
Nov 23, 2023
(Electronic) Receipt
Nov 23, 2023
Letter accompanying subsequently filed items
Nov 23, 2023
Letter relating to Appeal Procedure
Oct 4, 2023
F3345 Forwarding of submissions to parties
Sep 28, 2023
(Electronic) Receipt
Sep 28, 2023
Amended claims with annotations
Sep 28, 2023
Amended claims with annotations
Sep 28, 2023
Amended claims with annotations
Sep 28, 2023
Amended claims with annotations
Sep 28, 2023
Amended claims with annotations
Sep 28, 2023
Amended claims with annotations
Sep 28, 2023
Amended claims with annotations
Sep 28, 2023
Amended claims with annotations
Sep 28, 2023
Amended claims with annotations
Sep 28, 2023
Amended claims with annotations
Sep 28, 2023
Amended claims with annotations
Sep 28, 2023
Amended claims with annotations
Sep 28, 2023
Auxiliary request during appeals procedure - 01
Sep 28, 2023
Auxiliary request during appeals procedure - 02
Sep 28, 2023
Auxiliary request during appeals procedure - 03
Sep 28, 2023
Auxiliary request during appeals procedure - 04
Sep 28, 2023
Auxiliary request during appeals procedure - 05
Sep 28, 2023
Auxiliary request during appeals procedure - 06
Sep 28, 2023
Auxiliary request during appeals procedure - 07
Sep 28, 2023
Auxiliary request during appeals procedure - 08
Sep 28, 2023
Auxiliary request during appeals procedure - 09
Sep 28, 2023
Auxiliary request during appeals procedure - 10
Sep 28, 2023
Auxiliary request during appeals procedure - 11
Sep 28, 2023
Letter accompanying subsequently filed items
Sep 28, 2023
Main request during appeals procedure
Sep 28, 2023
Reply to appeal
May 31, 2023
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
May 24, 2023
(Electronic) Receipt
May 24, 2023
Letter accompanying subsequently filed items
May 24, 2023
Statement of grounds of appeal
May 4, 2023
Communication of amended entries in the Register of European Patents
May 4, 2023
Communication of amended entries in the Register of European Patents
May 4, 2023
F3204 Communication of the file number to the parties
May 4, 2023
F3204 Communication of the file number to the parties
May 4, 2023
F3345 Forwarding of submissions to parties
Apr 27, 2023
(Electronic) Receipt
Apr 27, 2023
Letter accompanying subsequently filed items
Apr 27, 2023
Notice of appeal
Mar 10, 2023
Advice of delivery
Mar 7, 2023
Advice of delivery
Mar 3, 2023
Advice of delivery
Mar 3, 2023
Annex to the communication - opposition
Mar 3, 2023
Decision of the Opposition Division and instruction
Mar 3, 2023
Druckexemplar in opposition procedure
Mar 3, 2023
Grounds for the decision (Annex) - opposition
Mar 3, 2023
Interlocutory decision in opposition proceedings
Mar 3, 2023
Interlocutory decision in opposition proceedings
Mar 3, 2023
Means of redress
Mar 3, 2023
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Mar 3, 2023
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Mar 3, 2023
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Mar 3, 2023
Provision of a copy of the minutes - opposition procedure
Mar 3, 2023
Provision of a copy of the minutes - opposition procedure
Mar 3, 2023
Scanned annex to a communication - opposition procedure
Mar 3, 2023
Scanned annex to a communication - opposition procedure
Mar 3, 2023
Scanned annex to a communication - opposition procedure
Mar 3, 2023
Scanned annex to a communication - opposition procedure
Mar 3, 2023
Transmittal of decision / summons - opposition
Mar 3, 2023
Transmittal of decision / summons - opposition
Feb 15, 2023
Information about the result of oral proceedings
Jan 30, 2023
Brief communication - Opposition proceedings
Jan 27, 2023
(Electronic) Receipt
Jan 27, 2023
Auxiliary request during Opposition procedure
Jan 27, 2023
Auxiliary request during Opposition procedure
Jan 27, 2023
Auxiliary request during Opposition procedure - 03
Jan 27, 2023
Auxiliary request during Opposition procedure - 04
Jan 27, 2023
Letter accompanying subsequently filed items
Jan 27, 2023
Written submission in preparation to/during oral proceedings
Dec 16, 2022
Brief communication - Opposition proceedings
Dec 14, 2022
Brief communication - Opposition proceedings
Dec 13, 2022
(Electronic) Receipt
Dec 13, 2022
Letter accompanying subsequently filed items
Dec 13, 2022
Written submission in preparation to/during oral proceedings
Dec 8, 2022
(Electronic) Receipt
Dec 8, 2022
Letter accompanying subsequently filed items
Dec 8, 2022
Written submission in preparation to/during oral proceedings
Nov 29, 2022
Notification concerning the date of oral proceedings
Nov 29, 2022
Notification concerning the date of oral proceedings
May 6, 2022
Advice of delivery
May 2, 2022
Advice of delivery
May 2, 2022
Information concerning oral proceedings
May 2, 2022
Summons to attend oral proceedings
May 2, 2022
Summons to attend oral proceedings
May 2, 2022
Transmittal of decision / summons - opposition
May 2, 2022
Transmittal of decision / summons - opposition
Feb 2, 2022
Brief communication - Opposition proceedings
Jan 28, 2022
(Electronic) Receipt
Jan 28, 2022
Auxiliary request during Opposition procedure
Jan 28, 2022
Auxiliary request during Opposition procedure
Jan 28, 2022
Auxiliary request during Opposition procedure - 01
Jan 28, 2022
Auxiliary request during Opposition procedure - 02
Jan 28, 2022
Letter accompanying subsequently filed items
Jan 28, 2022
Main request during Opposition procedure
Jan 28, 2022
Main request during Opposition procedure
Jan 28, 2022
Reply of the patent proprietor to the notice(s) of opposition
Sep 23, 2021
Communication of a notice of opposition and request to file observations
Sep 23, 2021
Notice of further oppositions to opponent(s)
Sep 15, 2021
Communication of a notice of opposition - first information to patent proprietor
Sep 9, 2021
(Electronic) Receipt
Sep 9, 2021
Citation in opposition procedure - 001
Sep 9, 2021
Citation in opposition procedure - 002
Sep 9, 2021
Citation in opposition procedure - 003
Sep 9, 2021
Citation in opposition procedure - 004
Sep 9, 2021
Citation in opposition procedure - 005
Sep 9, 2021
Citation in opposition procedure - 006
Sep 9, 2021
Citation in opposition procedure - 007
Sep 9, 2021
Citation in opposition procedure - 008
Sep 9, 2021
Citation in opposition procedure - 009
Sep 9, 2021
Citation in opposition procedure - 010
Sep 9, 2021
Consolidated list of cited opposition documents
Sep 9, 2021
Letter accompanying subsequently filed items
Sep 9, 2021
Notice of opposition
Dec 21, 2020
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Nov 12, 2020
Decision to grant a European patent
Nov 2, 2020
(Electronic) Receipt
Nov 2, 2020
French translation of claims
Nov 2, 2020
German translation of the claims
Nov 2, 2020
Letter accompanying subsequently filed items
Sep 23, 2020
Bibliographic data of the European patent application
Sep 23, 2020
Communication about intention to grant a European patent
Sep 23, 2020
Intention to grant (signatures)
Sep 23, 2020
Text intended for grant (clean copy)
Sep 23, 2020
Text intended for grant (version for approval)
Jun 8, 2020
Response to enquiry for communication from the Examining Division
May 20, 2020
(Electronic) Receipt
May 20, 2020
Enquiry as to the processing of the file
May 20, 2020
Letter accompanying subsequently filed items
May 6, 2019
(Electronic) Receipt
May 6, 2019
Amended description with annotations
May 6, 2019
Description
May 6, 2019
Letter accompanying subsequently filed items
May 6, 2019
Reply to communication from the Examining Division
Feb 4, 2019
Annex to the communication
Feb 4, 2019
Communication from the Examining Division
Jan 25, 2019
Examination started
Jan 10, 2019
Copy of the international preliminary report on patentability
Jan 10, 2019
Translation of the international preliminary report on patentability
Jan 9, 2019
(Electronic) Receipt
Jan 9, 2019
Amended claims filed after receipt of (European) search report
Jan 9, 2019
Amended claims with annotations
Jan 9, 2019
Amendments received before examination
Jan 9, 2019
Letter accompanying subsequently filed items
Jul 27, 2018
Invitation to declare maintenance of the application and to correct deficiencies in the Written Opinion/amend application
Jul 13, 2018
Copy of the international preliminary report on patentability
Jul 13, 2018
Translation of the international preliminary report on patentability
Jul 13, 2018
Transmission of a document (International preliminary examination report)
Jul 10, 2018
Communication regarding the transmission of the European search report
Jul 10, 2018
European search opinion
Jul 10, 2018
Information on Search Strategy
Jul 10, 2018
Supplementary European search report
Jun 27, 2018
Search started
Jun 6, 2018
Notification of forthcoming publication
May 8, 2018
Enquiry with the International Bureau
Apr 16, 2018
Confirmation of effective date of early entry
Apr 13, 2018
Communication to designated inventor
Apr 13, 2018
Communication to designated inventor
Apr 13, 2018
Communication to designated inventor
Apr 13, 2018
Communication to designated inventor
Apr 13, 2018
Communication to designated inventor
Apr 13, 2018
Communication to designated inventor
Mar 27, 2018
(Electronic) Receipt
Mar 27, 2018
Abstract
Mar 27, 2018
Claims
Mar 27, 2018
Description
Mar 27, 2018
Request for entry into the European phase
Jan 16, 2018
Priority document (electronically transmitted)
Dec 28, 2017
Copy of the international search report
Dec 28, 2017
Copy of the translated international search report
Dec 28, 2017
International publication pamphlet

EP3342794

LG CHEM

Application Number: EP17815645A
Filing Date: Jun 13, 2017
Status: Patent Maintained As Amended; Jul 25, 2025
Publication Date: Aug 27, 2025
External Links: Slate, Register , Google Patents