IP Verse

Plasticizer Composition Containing Polymeric Dicarboxylic Acid Esters And Dicarboxylic Acid Diesters

Patent No. EP3356459 (titled "Plasticizer Composition Containing Polymeric Dicarboxylic Acid Esters And Dicarboxylic Acid Diesters") was filed by Basf on Sep 29, 2016. The application was issued on Sep 17, 2025.

Patent Summary

Patent Family

Patent Oppositions

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
LANXESS DEUTSCHLAND	Aug 12, 2020	-

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

Get instant alerts for new documents

Aug 21, 2025
Decision to maintain the European patent in amended form
Aug 21, 2025
Decision to maintain the European patent in amended form
Jul 15, 2025
(Electronic) Receipt
Jul 15, 2025
English translation of the claims
Jul 15, 2025
French translation of claims
Jul 15, 2025
Letter accompanying subsequently filed items
May 15, 2025
Communication of bibliographic data
May 15, 2025
Communication with request to file translations
May 9, 2025
Refund of fees
May 8, 2025
F3324 Closure of the appeal proceedings: withdrawal of the appeal/ application/ opposition
May 8, 2025
F3324 Closure of the appeal proceedings: withdrawal of the appeal/ application/ opposition
May 7, 2025
Maintenance of the patent with the documents specified in the final decision
May 2, 2025
F3013 Oral Proceedings: Forwarding minutes
May 2, 2025
F3013 Oral Proceedings: Forwarding minutes
May 2, 2025
F3315 Oral Proceedings: Minutes (Appellant : Proprietor)
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 3, 2025
F3345 Forwarding of submissions to parties
Feb 28, 2025
(Electronic) Receipt
Feb 28, 2025
Amended claims with annotations
Feb 28, 2025
Auxiliary request during appeals procedure - 02
Feb 28, 2025
Letter accompanying subsequently filed items
Feb 28, 2025
Letter dealing with oral proceedings during the appeal procedure
Nov 19, 2024
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Nov 19, 2024
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Aug 29, 2024
F3004 Communication of the Registry
Aug 29, 2024
F3004 Communication of the Registry
Aug 29, 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 2, 2024
F3345 Forwarding of submissions to parties
Jul 30, 2024
(Electronic) Receipt
Jul 30, 2024
Letter accompanying subsequently filed items
Jul 30, 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 24, 2024
Composition of the board (T)
Dec 21, 2023
F3345 Forwarding of submissions to parties
Dec 15, 2023
(Electronic) Receipt
Dec 15, 2023
Letter accompanying subsequently filed items
Dec 15, 2023
Reply to appeal
Aug 9, 2023
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Aug 4, 2023
(Electronic) Receipt
Aug 4, 2023
Amended claims with annotations
Aug 4, 2023
Auxiliary request during appeals procedure - 01
Aug 4, 2023
Letter accompanying subsequently filed items
Aug 4, 2023
Statement of grounds of appeal
Jun 21, 2023
F3204 Communication of the file number to the parties
Jun 21, 2023
F3204 Communication of the file number to the parties
Jun 14, 2023
(Electronic) Receipt
Jun 14, 2023
Letter accompanying subsequently filed items
Jun 14, 2023
Notice of appeal
Apr 12, 2023
Advice of delivery
Apr 4, 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
Nov 24, 2022
Information about the result of oral proceedings
Nov 23, 2022
Brief communication - Opposition proceedings
Nov 22, 2022
(Electronic) Receipt
Nov 22, 2022
Any annexes (other than citation) to an opposition letter
Nov 22, 2022
Any annexes (other than citation) to an opposition letter
Nov 22, 2022
Auxiliary request during Opposition procedure
Nov 22, 2022
Auxiliary request during Opposition procedure
Nov 22, 2022
Auxiliary request during Opposition procedure - 01
Nov 22, 2022
Auxiliary request during Opposition procedure - 01
Nov 22, 2022
Letter accompanying subsequently filed items
Nov 22, 2022
Main request during Opposition procedure
Nov 22, 2022
Main request during Opposition procedure
Nov 22, 2022
Main request during Opposition procedure
Nov 22, 2022
Main request during Opposition procedure
Nov 22, 2022
Written submission in preparation to/during oral proceedings
Oct 25, 2022
Brief communication - Opposition proceedings
Oct 20, 2022
(Electronic) Receipt
Oct 20, 2022
Letter accompanying subsequently filed items
Oct 20, 2022
Written submission in preparation to/during oral proceedings
Sep 30, 2022
Brief communication - Opposition proceedings
Sep 29, 2022
Brief communication - Opposition proceedings
Sep 23, 2022
(Electronic) Receipt
Sep 23, 2022
Citation in opposition procedure - 023
Sep 23, 2022
Citation in opposition procedure - 024
Sep 23, 2022
Citation in opposition procedure - 025
Sep 23, 2022
Citation in opposition procedure - 026
Sep 23, 2022
Consolidated list of cited opposition documents
Sep 23, 2022
Letter accompanying subsequently filed items
Sep 23, 2022
Written submission in preparation to/during oral proceedings
Sep 22, 2022
(Electronic) Receipt
Sep 22, 2022
Letter accompanying subsequently filed items
Sep 22, 2022
Written submission in preparation to/during oral proceedings
Jun 7, 2022
Advice of delivery
Jun 3, 2022
Advice of delivery
May 30, 2022
Annex to the communication - opposition
May 30, 2022
Information concerning oral proceedings
May 30, 2022
Summons to attend oral proceedings
May 30, 2022
Summons to attend oral proceedings
May 30, 2022
Transmittal of decision / summons - opposition
May 30, 2022
Transmittal of decision / summons - opposition
Dec 14, 2020
Brief communication - Opposition proceedings
Dec 8, 2020
(Electronic) Receipt
Dec 8, 2020
Letter accompanying subsequently filed items
Dec 8, 2020
Reply of the patent proprietor to the notice(s) of opposition
Aug 27, 2020
Communication of a notice of opposition and request to file observations
Aug 27, 2020
Notice of further oppositions to opponent(s)
Aug 18, 2020
Communication of a notice of opposition - first information to patent proprietor
Aug 12, 2020
(Electronic) Receipt
Aug 12, 2020
Citation in opposition procedure - 001
Aug 12, 2020
Citation in opposition procedure - 002
Aug 12, 2020
Citation in opposition procedure - 003
Aug 12, 2020
Citation in opposition procedure - 004
Aug 12, 2020
Citation in opposition procedure - 005
Aug 12, 2020
Citation in opposition procedure - 006
Aug 12, 2020
Citation in opposition procedure - 007
Aug 12, 2020
Citation in opposition procedure - 008
Aug 12, 2020
Citation in opposition procedure - 009
Aug 12, 2020
Citation in opposition procedure - 010
Aug 12, 2020
Citation in opposition procedure - 011
Aug 12, 2020
Citation in opposition procedure - 012
Aug 12, 2020
Citation in opposition procedure - 013
Aug 12, 2020
Citation in opposition procedure - 014
Aug 12, 2020
Citation in opposition procedure - 015
Aug 12, 2020
Citation in opposition procedure - 016
Aug 12, 2020
Citation in opposition procedure - 017
Aug 12, 2020
Citation in opposition procedure - 018
Aug 12, 2020
Citation in opposition procedure - 019
Aug 12, 2020
Citation in opposition procedure - 020
Aug 12, 2020
Citation in opposition procedure - 021
Aug 12, 2020
Citation in opposition procedure - 022
Aug 12, 2020
International publication (Pamphlet)
Aug 12, 2020
Letter accompanying subsequently filed items
Aug 12, 2020
Notice of opposition
Nov 25, 2019
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Oct 17, 2019
Decision to grant a European patent
Sep 23, 2019
(Electronic) Receipt
Sep 23, 2019
English translation of the claims
Sep 23, 2019
Filing of the translations of the claims
Sep 23, 2019
French translation of claims
Jun 25, 2019
Bibliographic data of the European patent application
Jun 25, 2019
Communication about intention to grant a European patent
Jun 25, 2019
Intention to grant (signatures)
Jun 25, 2019
Text intended for grant (clean copy)
Jun 25, 2019
Text intended for grant (version for approval)
May 14, 2019
Examination started
Oct 16, 2018
(Electronic) Receipt
Oct 16, 2018
Letter accompanying subsequently filed items
Oct 16, 2018
Reply to Written Opinion prepared by the EPO
Jul 11, 2018
Notification on forthcoming publication of bibliographic data
May 14, 2018
Communication regarding comments on written opinion/amendment of application/payment of claims fee
May 9, 2018
Communication to designated inventor
May 9, 2018
Communication to designated inventor
May 9, 2018
Communication to designated inventor
May 9, 2018
Communication to designated inventor
Apr 9, 2018
Annexes to the international preliminary examination report
Apr 9, 2018
Copy of the international preliminary examination report
Mar 14, 2018
(Electronic) Receipt
Mar 14, 2018
Request for entry into the European phase
Feb 9, 2018
Information on entry into European phase
Aug 29, 2017
Annex to International preliminary examination report
Aug 29, 2017
International preliminary examination report
Aug 29, 2017
International preliminary examination report - free text sheet
Aug 29, 2017
International preliminary examination report - points I-VIII
Aug 29, 2017
Transmittal of International Preliminary Examination Report
Jul 11, 2017
Notification of the recording of a change
Jul 11, 2017
Notification of the recording of a change
Jul 11, 2017
Notification of the recording of a change
Jul 11, 2017
Notification of the recording of a change
Jun 29, 2017
Incoming letter related to PCT RO
Jun 28, 2017
Incoming letter related to PCT RO
May 15, 2017
Notification of election of EPO
May 4, 2017
Notification of receipt of demand
Apr 25, 2017
(Electronic) Receipt
Apr 25, 2017
PCT demand form
Apr 25, 2017
PCT(IPEA): Amended sheet - claims
Apr 25, 2017
PCT(IPEA): Amended sheet - claims
Apr 25, 2017
Payment of fees and costs
Apr 25, 2017
Priority document (electronically transmitted)
Apr 25, 2017
Reply to International Search Opinion
Apr 6, 2017
Copy of the international search report
Apr 6, 2017
Copy of the international search report
Apr 6, 2017
Published international application - A1
Nov 30, 2016
ISR: cited documents
Nov 30, 2016
International Search Report - copy in English for the IB
Nov 29, 2016
Written opinion of the ISA, boxes No. I to VIII
Nov 29, 2016
Written opinion of the ISA, cover sheet
Nov 29, 2016
Written opinion of the ISA, supplemental box
Oct 18, 2016
Notification of receipt of Search copy
Oct 6, 2016
Notification of the international application number and of the international filing date
Oct 4, 2016
Request form for international application (copy for ISA/EP)
Sep 29, 2016
(Electronic) Receipt
Sep 29, 2016
Abstract
Sep 29, 2016
Claims
Sep 29, 2016
Description
Sep 29, 2016
Document concerning fees and payments
Sep 29, 2016
Drawings
Sep 29, 2016
Electronic request for grant of an International application
Sep 29, 2016
Priority document (RO-procedure)

EP3356459

BASF

Application Number: EP16775671A
Filing Date: Sep 29, 2016
Status: Patent Maintained As Amended; Aug 15, 2025
Publication Date: Sep 17, 2025
External Links: Slate, Register , Google Patents