Bio-Degradable Polyester Composition

Patent No. EP3296360 (titled "Bio-Degradable Polyester Composition") was filed by Kingfa SCI & Tech on Mar 1, 2017. The application was issued on Aug 19, 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	May 19, 2021	MEISSNER BOLTE PARTNERSCHAFT MBB
NOVAMONT	May 19, 2021	MAIWALD

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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Jan 23, 2026
Decision to discontinue the opposition proceedings
Jan 20, 2026
Brief communication - Opposition proceedings
Jan 20, 2026
Brief communication - Opposition proceedings
Jan 14, 2026
(Electronic) Receipt
Jan 14, 2026
Letter accompanying subsequently filed items
Jan 14, 2026
Withdrawal of an opposition
Jan 9, 2026
Brief communication - Opposition proceedings
Dec 29, 2025
(Electronic) Receipt
Dec 29, 2025
Letter accompanying subsequently filed items
Dec 29, 2025
Written submission in preparation to/during oral proceedings
Dec 22, 2025
Annex to the communication - opposition
Dec 22, 2025
Information concerning oral proceedings
Dec 22, 2025
Scanned annex to a communication - opposition procedure
Dec 22, 2025
Summons to attend oral proceedings
Dec 22, 2025
Summons to attend oral proceedings
Oct 8, 2025
Decision of the Board of Appeal
Oct 8, 2025
Decision of the Board of Appeal
Oct 8, 2025
F3032 Notification(s) of the decision
Oct 8, 2025
F3032 Notification(s) of the decision
Oct 7, 2025
F3014 Oral Proceedings: Order cancelling/postponing
Oct 7, 2025
F3017 Oral Proceedings: Notification of cancellation/postponing
Oct 7, 2025
F3017 Oral Proceedings: Notification of cancellation/postponing
Sep 26, 2025
F3345 Forwarding of submissions to parties
Sep 25, 2025
(Electronic) Receipt
Sep 25, 2025
Letter accompanying subsequently filed items
Sep 25, 2025
Letter dealing with oral proceedings during the appeal procedure
Sep 16, 2025
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Sep 16, 2025
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Sep 8, 2025
F3345 Forwarding of submissions to parties
Sep 4, 2025
(Electronic) Receipt
Sep 4, 2025
Letter accompanying subsequently filed items
Sep 4, 2025
Request for interpreters during oral proceedings
Aug 13, 2025
F3345 Forwarding of submissions to parties
Aug 13, 2025
F3345 Forwarding of submissions to parties
Aug 13, 2025
F3348 Confirmation of withdrawal of the opposition by the respondent and former opponent
Aug 13, 2025
F3348 Confirmation of withdrawal of the opposition by the respondent and former opponent
Aug 13, 2025
F3348 Confirmation of withdrawal of the opposition by the respondent and former opponent
Aug 8, 2025
(Electronic) Receipt
Aug 8, 2025
Withdrawal of an opposition
Apr 17, 2025
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Apr 17, 2025
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Apr 17, 2025
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Feb 10, 2025
F3004 Communication of the Registry
Feb 10, 2025
F3004 Communication of the Registry
Feb 10, 2025
F3004 Communication of the Registry
Feb 10, 2025
F3345 Forwarding of submissions to parties
Feb 10, 2025
F3345 Forwarding of submissions to parties
Feb 6, 2025
(Electronic) Receipt
Feb 6, 2025
F3345 Forwarding of submissions to parties
Feb 6, 2025
F3345 Forwarding of submissions to parties
Feb 6, 2025
Letter accompanying subsequently filed items
Feb 6, 2025
Letter dealing with oral proceedings during the appeal procedure
Feb 5, 2025
(Electronic) Receipt
Feb 5, 2025
Letter accompanying subsequently filed items
Feb 5, 2025
Letter dealing with oral proceedings during the appeal procedure
Jan 16, 2025
F3345 Forwarding of submissions to parties
Jan 16, 2025
F3345 Forwarding of submissions to parties
Jan 13, 2025
(Electronic) Receipt
Jan 13, 2025
Letter accompanying subsequently filed items
Jan 13, 2025
Letter dealing with oral proceedings during the appeal procedure
Dec 6, 2024
F3004 Communication of the Registry
Dec 6, 2024
F3004 Communication of the Registry
Dec 6, 2024
F3004 Communication of the Registry
Dec 6, 2024
F3011.1 Oral Proceedings: summons
Dec 6, 2024
F3011.1 Oral Proceedings: summons
Dec 6, 2024
F3011.1 Oral Proceedings: summons
Dec 3, 2024
Composition of the board (T)
Dec 3, 2024
F3010 Oral proceedings: order for summons
Mar 22, 2024
F3345 Forwarding of submissions to parties
Mar 22, 2024
F3345 Forwarding of submissions to parties
Mar 13, 2024
Letter accompanying subsequently filed items
Mar 13, 2024
Request for change of opponent's representative
Dec 22, 2023
F3345 Forwarding of submissions to parties
Dec 22, 2023
F3345 Forwarding of submissions to parties
Dec 20, 2023
(Electronic) Receipt
Dec 20, 2023
Letter accompanying subsequently filed items
Dec 20, 2023
Letter relating to Appeal Procedure
Aug 18, 2023
F3345 Forwarding of submissions to parties
Aug 18, 2023
F3345 Forwarding of submissions to parties
Aug 18, 2023
F3345 Forwarding of submissions to parties
Aug 18, 2023
F3345 Forwarding of submissions to parties
Aug 16, 2023
(Electronic) Receipt
Aug 16, 2023
Letter accompanying subsequently filed items
Aug 16, 2023
Reply to appeal
Aug 14, 2023
(Electronic) Receipt
Aug 14, 2023
Letter accompanying subsequently filed items
Aug 14, 2023
Reply to appeal
Apr 6, 2023
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Apr 6, 2023
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Apr 3, 2023
(Electronic) Receipt
Apr 3, 2023
Amended claims with annotations
Apr 3, 2023
Amended claims with annotations
Apr 3, 2023
Amended claims with annotations
Apr 3, 2023
Amended claims with annotations
Apr 3, 2023
Amended claims with annotations
Apr 3, 2023
Amended claims with annotations
Apr 3, 2023
Auxiliary request during appeals procedure - 01
Apr 3, 2023
Auxiliary request during appeals procedure - 02
Apr 3, 2023
Auxiliary request during appeals procedure - 03
Apr 3, 2023
Auxiliary request during appeals procedure - 04
Apr 3, 2023
Auxiliary request during appeals procedure - 05
Apr 3, 2023
Auxiliary request during appeals procedure - 06
Apr 3, 2023
Cited document during appeal procedure
Apr 3, 2023
Cited document during appeal procedure
Apr 3, 2023
Letter accompanying subsequently filed items
Apr 3, 2023
Statement of grounds of appeal
Feb 3, 2023
F3204 Communication of the file number to the parties
Feb 3, 2023
F3204 Communication of the file number to the parties
Feb 3, 2023
F3204 Communication of the file number to the parties
Jan 30, 2023
(Electronic) Receipt
Jan 30, 2023
Letter accompanying subsequently filed items
Jan 30, 2023
Notice of appeal
Nov 23, 2022
Advice of delivery
Nov 23, 2022
Advice of delivery
Nov 22, 2022
Advice of delivery
Nov 22, 2022
Annex to the communication - opposition
Nov 22, 2022
Decision of the Opposition Division and instruction
Nov 22, 2022
Decision revoking the European patent
Nov 22, 2022
Decision revoking the European patent
Nov 22, 2022
Decision revoking the European patent
Nov 22, 2022
Grounds for the decision (Annex) - opposition
Nov 22, 2022
Means of redress
Nov 22, 2022
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Nov 22, 2022
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Nov 22, 2022
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Nov 22, 2022
Provision of a copy of the minutes - opposition procedure
Nov 22, 2022
Provision of a copy of the minutes - opposition procedure
Nov 22, 2022
Provision of a copy of the minutes - opposition procedure
Nov 22, 2022
Transmittal of decision / summons - opposition
Nov 22, 2022
Transmittal of decision / summons - opposition
Nov 22, 2022
Transmittal of decision / summons - opposition
Nov 9, 2022
Information about the result of oral proceedings
Oct 25, 2022
Brief communication - Opposition proceedings
Oct 25, 2022
Brief communication - Opposition proceedings
Oct 24, 2022
Communication of amended entries
Oct 13, 2022
Request concerning representative opponent
Sep 15, 2022
Brief communication - Opposition proceedings
Sep 15, 2022
Brief communication - Opposition proceedings
Sep 15, 2022
Brief communication - Opposition proceedings
Sep 15, 2022
Brief communication - Opposition proceedings
Sep 9, 2022
(Electronic) Receipt
Sep 9, 2022
(Electronic) Receipt
Sep 9, 2022
Brief communication - Opposition proceedings
Sep 9, 2022
Brief communication - Opposition proceedings
Sep 9, 2022
Citation in opposition procedure - 020
Sep 9, 2022
Citation in opposition procedure - 021
Sep 9, 2022
Citation in opposition procedure - 022
Sep 9, 2022
Citation in opposition procedure - 022
Sep 9, 2022
Citation in opposition procedure - 023
Sep 9, 2022
Citation in opposition procedure - 024
Sep 9, 2022
Citation in opposition procedure - 025
Sep 9, 2022
Citation in opposition procedure - 026
Sep 9, 2022
Citation in opposition procedure - 027
Sep 9, 2022
Consolidated list of cited opposition documents
Sep 9, 2022
Letter accompanying subsequently filed items
Sep 9, 2022
Request for interpreters during oral proceedings
Sep 9, 2022
Written submission in preparation to/during oral proceedings
Sep 9, 2022
Written submission in preparation to/during oral proceedings
Sep 6, 2022
(Electronic) Receipt
Sep 6, 2022
Letter accompanying subsequently filed items
Sep 6, 2022
Written submission in preparation to/during oral proceedings
Jun 17, 2022
Notification concerning the date of oral proceedings
Jun 17, 2022
Notification concerning the date of oral proceedings
Jun 17, 2022
Notification concerning the date of oral proceedings
Mar 31, 2022
Brief communication - Opposition proceedings
Mar 31, 2022
Brief communication - Opposition proceedings
Mar 31, 2022
Communication of amended entries
Mar 29, 2022
Brief communication - Opposition proceedings
Mar 29, 2022
Brief communication - Opposition proceedings
Mar 24, 2022
(Electronic) Receipt
Mar 24, 2022
Letter accompanying subsequently filed items
Mar 24, 2022
Request for change of opponent's representative
Feb 24, 2022
(Electronic) Receipt
Feb 24, 2022
Advice of delivery
Feb 24, 2022
Letter accompanying subsequently filed items
Feb 23, 2022
Advice of delivery
Feb 22, 2022
Advice of delivery
Feb 22, 2022
Annex to the communication - opposition
Feb 22, 2022
Summons to attend oral proceedings
Feb 22, 2022
Summons to attend oral proceedings
Feb 22, 2022
Summons to attend oral proceedings
Feb 22, 2022
Transmittal of decision / summons - opposition
Feb 22, 2022
Transmittal of decision / summons - opposition
Feb 22, 2022
Transmittal of decision / summons - opposition
Oct 14, 2021
Brief communication - Opposition proceedings
Oct 14, 2021
Brief communication - Opposition proceedings
Oct 11, 2021
(Electronic) Receipt
Oct 11, 2021
Auxiliary request during Opposition procedure
Oct 11, 2021
Auxiliary request during Opposition procedure
Oct 11, 2021
Auxiliary request during Opposition procedure
Oct 11, 2021
Auxiliary request during Opposition procedure
Oct 11, 2021
Auxiliary request during Opposition procedure
Oct 11, 2021
Auxiliary request during Opposition procedure
Oct 11, 2021
Auxiliary request during Opposition procedure - 01
Oct 11, 2021
Auxiliary request during Opposition procedure - 02
Oct 11, 2021
Auxiliary request during Opposition procedure - 03
Oct 11, 2021
Auxiliary request during Opposition procedure - 04
Oct 11, 2021
Auxiliary request during Opposition procedure - 05
Oct 11, 2021
Auxiliary request during Opposition procedure - 06
Oct 11, 2021
Citation in opposition procedure - 015
Oct 11, 2021
Citation in opposition procedure - 016
Oct 11, 2021
Citation in opposition procedure - 017
Oct 11, 2021
Citation in opposition procedure - 018
Oct 11, 2021
Citation in opposition procedure - 019
Oct 11, 2021
Letter accompanying subsequently filed items
Oct 11, 2021
Reply of the patent proprietor to the notice(s) of opposition
Jun 23, 2021
Communication confirming withdrawal from representation
Jun 23, 2021
Communication of amended entries concerning the representative
Jun 22, 2021
Brief communication - Opposition proceedings
Jun 22, 2021
Brief communication - Opposition proceedings
Jun 16, 2021
(Electronic) Receipt
Jun 16, 2021
Letter accompanying subsequently filed items
Jun 16, 2021
Submission concerning change of proprietor's representative
Jun 7, 2021
Brief communication - Opposition proceedings
Jun 7, 2021
Brief communication - Opposition proceedings
Jun 1, 2021
(Electronic) Receipt
Jun 1, 2021
Communication of a notice of opposition and request to file observations
Jun 1, 2021
General authorisation
Jun 1, 2021
Letter accompanying subsequently filed items
Jun 1, 2021
Notice of further oppositions to opponent(s)
Jun 1, 2021
Notice of further oppositions to opponent(s)
Jun 1, 2021
Submission concerning change of proprietor's representative
May 31, 2021
Refund of fees
May 26, 2021
Communication of a notice of opposition - first information to patent proprietor
May 26, 2021
Communication of a notice of opposition - first information to patent proprietor
May 19, 2021
(Electronic) Receipt
May 19, 2021
(Electronic) Receipt
May 19, 2021
(Electronic) Receipt
May 19, 2021
Citation in opposition procedure
May 19, 2021
Citation in opposition procedure - 001
May 19, 2021
Citation in opposition procedure - 002
May 19, 2021
Citation in opposition procedure - 003
May 19, 2021
Citation in opposition procedure - 004
May 19, 2021
Citation in opposition procedure - 005
May 19, 2021
Citation in opposition procedure - 006
May 19, 2021
Citation in opposition procedure - 007
May 19, 2021
Citation in opposition procedure - 008
May 19, 2021
Citation in opposition procedure - 009
May 19, 2021
Citation in opposition procedure - 010
May 19, 2021
Citation in opposition procedure - 010
May 19, 2021
Citation in opposition procedure - 011
May 19, 2021
Citation in opposition procedure - 012
May 19, 2021
Citation in opposition procedure - 013
May 19, 2021
Citation in opposition procedure - 014
May 19, 2021
Citation in opposition procedure - 015
May 19, 2021
Letter accompanying subsequently filed items
May 19, 2021
Notice of opposition
May 19, 2021
Notice of opposition
May 19, 2021
Notice of opposition
May 19, 2021
Notice of opposition
May 19, 2021
Patent document cited during the opposition procedure
May 19, 2021
Patent document cited during the opposition procedure
May 19, 2021
Patent document cited during the opposition procedure
May 19, 2021
Patent document cited during the opposition procedure
May 19, 2021
Patent document cited during the opposition procedure
May 19, 2021
Patent document cited during the opposition procedure
Aug 31, 2020
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Jul 23, 2020
Decision to grant a European patent
Jul 22, 2020
Intention to grant (signatures)
Jul 14, 2020
Bibliographic data of the European patent application
Jul 14, 2020
Information about intention to grant a patent
Jul 14, 2020
Text intended for grant (clean copy)
Jul 14, 2020
Text intended for grant (version for approval)
Jun 22, 2020
(Electronic) Receipt
Jun 22, 2020
Amended claims with annotations
Jun 22, 2020
Claims
Jun 22, 2020
French translation of claims
Jun 22, 2020
German translation of the claims
Jun 22, 2020
Letter accompanying subsequently filed items
Jun 22, 2020
Request for correction/amendment of the text proposed for grant sent from 01.04.2012
Feb 26, 2020
Bibliographic data of the European patent application
Feb 26, 2020
Communication about intention to grant a European patent
Feb 26, 2020
Intention to grant (signatures)
Feb 26, 2020
Text intended for grant (clean copy)
Feb 26, 2020
Text intended for grant (version for approval)
Dec 11, 2019
Examination started
Mar 14, 2019
(Electronic) Receipt
Mar 14, 2019
Letter accompanying subsequently filed items
Mar 14, 2019
Priority search results
Mar 14, 2019
Reply to invitation to file a copy of priority search results
Feb 5, 2019
Copy of the international preliminary report on patentability
Feb 5, 2019
Translation of the international preliminary report on patentability
Jan 29, 2019
Invitation to file a copy of search results(priority)
Jan 16, 2019
(Electronic) Receipt
Jan 16, 2019
Amended claims filed after receipt of (European) search report
Jan 16, 2019
Amended claims with annotations
Jan 16, 2019
Amendments received before examination
Jan 16, 2019
Letter accompanying subsequently filed items
Nov 16, 2018
Invitation to declare maintenance of the application and to correct deficiencies in the Written Opinion/amend application
Oct 31, 2018
Communication regarding the transmission of the European search report
Oct 31, 2018
Document annexed to the Extended European Search Report
Oct 31, 2018
European search opinion
Oct 31, 2018
Information on Search Strategy
Oct 31, 2018
Supplementary European search report
Oct 1, 2018
Search started
Mar 8, 2018
Notification of the recording of a change
Feb 21, 2018
Notification of forthcoming publication
Feb 12, 2018
Priority document (electronically transmitted)
Jan 31, 2018
Communication to designated inventor
Jan 31, 2018
Communication to designated inventor
Jan 31, 2018
Communication to designated inventor
Jan 31, 2018
Communication to designated inventor
Jan 31, 2018
Communication to designated inventor
Jan 31, 2018
Communication to designated inventor
Jan 31, 2018
Communication to designated inventor
Jan 31, 2018
Communication to designated inventor
Jan 31, 2018
Communication to designated inventor
Jan 31, 2018
Communication to designated inventor
Jan 31, 2018
Communication to designated inventor
Jan 31, 2018
Communication to designated inventor
Jan 25, 2018
Copy of the international search report
Jan 25, 2018
Copy of the translated international search report
Jan 25, 2018
International publication pamphlet
Jan 25, 2018
International publication pamphlet
Dec 15, 2017
Confirmation of receipt of (electronically) transmitted priority document
Nov 17, 2017
Communication regarding possible amendment of the application/payment of claims fee
Nov 15, 2017
Priority document (electronically transmitted)
Oct 20, 2017
Enquiry with the International Bureau
Oct 20, 2017
Information regarding early processing
Sep 19, 2017
(Electronic) Receipt
Sep 19, 2017
Abstract
Sep 19, 2017
Claims
Sep 19, 2017
Description
Sep 19, 2017
Request for entry into the European phase

EP3296360

KINGFA SCI & TECH

Application Number: EP17764498A
Filing Date: Mar 1, 2017
Status: Granted And Under Opposition; Jul 17, 2020
Publication Date: Aug 19, 2020
External Links: Slate, Register , Google Patents

IP Verse

Bio-Degradable Polyester Composition

Patent Summary

Patent Family

Patent Oppositions (2)

Dossier Documents

EP3296360