Polyester, Method For Their Preparation And Their Use

Patent No. EP3222647 (titled "Polyester, Method For Their Preparation And Their Use") was filed by Weylchem Wiesbaden on Feb 9, 2017. The application was issued on Oct 17, 2018.

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
CLARIANT PRODUKTE DEUTSCHLAND	Jul 17, 2019	RIPPEL

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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Aug 17, 2021
Communication to the parties concerning the termination of the opposition proceedings (opponent)
Aug 17, 2021
Communication to the parties concerning the termination of the opposition proceedings (proprietor)
Aug 12, 2021
Termination of the opposition proceedings with revocation of patent
May 11, 2021
Advice of delivery
May 10, 2021
Advice of delivery
May 3, 2021
Acknowledgement of a document
May 3, 2021
Annex to the communication - opposition
May 3, 2021
Decision of the Opposition Division and instruction
May 3, 2021
Decision revoking the European patent
May 3, 2021
Decision revoking the European patent
May 3, 2021
Grounds for the decision (Annex) - opposition
May 3, 2021
Internal form - Opposition/addressees
May 3, 2021
Internal form - Opposition/addressees
May 3, 2021
Means of redress
May 3, 2021
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
May 3, 2021
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
May 3, 2021
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
May 3, 2021
Provision of a copy of the minutes - opposition procedure
May 3, 2021
Provision of a copy of the minutes - opposition procedure
May 3, 2021
Scanned annex to a communication - opposition procedure
May 3, 2021
Scanned annex to a communication - opposition procedure
May 3, 2021
Scanned annex to a communication - opposition procedure
May 3, 2021
Scanned annex to a communication - opposition procedure
May 3, 2021
Scanned annex to a communication - opposition procedure
May 3, 2021
Scanned annex to a communication - opposition procedure
May 3, 2021
Scanned annex to a communication - opposition procedure
May 3, 2021
Transmittal of decision / summons - opposition
Mar 24, 2021
Information about the result of oral proceedings
Mar 22, 2021
Brief communication - Opposition proceedings
Mar 22, 2021
Brief communication - Opposition proceedings
Feb 2, 2021
Communication of amended entries
Feb 2, 2021
Communication of amended entries
Jan 28, 2021
Brief communication - Opposition proceedings
Jan 26, 2021
Brief communication - Opposition proceedings
Jan 22, 2021
Written submission in preparation to/during oral proceedings
Jan 19, 2021
Auxiliary request during Opposition procedure
Jan 19, 2021
Auxiliary request during Opposition procedure
Jan 19, 2021
Auxiliary request during Opposition procedure
Jan 19, 2021
Auxiliary request during Opposition procedure
Jan 19, 2021
Auxiliary request during Opposition procedure - 01
Jan 19, 2021
Auxiliary request during Opposition procedure - 02
Jan 19, 2021
Auxiliary request during Opposition procedure - 03
Jan 19, 2021
Auxiliary request during Opposition procedure - 04
Jan 19, 2021
Written submission in preparation to/during oral proceedings
Jan 18, 2021
Written submission in preparation to/during oral proceedings
Dec 22, 2020
Notification concerning the date of oral proceedings
Dec 22, 2020
Notification concerning the date of oral proceedings
May 22, 2020
Advice of delivery
May 13, 2020
Advice of delivery
May 8, 2020
Acknowledgement of a document
May 8, 2020
Acknowledgement of a document
May 8, 2020
Information concerning oral proceedings
May 8, 2020
Summons to attend oral proceedings
May 6, 2020
Notification concerning the date of oral proceedings
May 6, 2020
Notification concerning the date of oral proceedings
Apr 30, 2020
Brief communication - Opposition proceedings
Apr 23, 2020
Oral proceedings: Request for postponement
Apr 7, 2020
Advice of delivery
Mar 12, 2020
Advice of delivery
Mar 12, 2020
Brief communication - Opposition proceedings
Mar 9, 2020
Acknowledgement of a document
Mar 9, 2020
Acknowledgement of a document
Mar 9, 2020
Annex to the communication - opposition
Mar 9, 2020
Information concerning oral proceedings
Mar 9, 2020
Scanned annex to a communication - opposition procedure
Mar 9, 2020
Summons to attend oral proceedings
Mar 9, 2020
Summons to attend oral proceedings
Mar 2, 2020
Written submission in preparation to/during oral proceedings
Jan 10, 2020
Brief communication - Opposition proceedings
Dec 23, 2019
Reply of the patent proprietor to the notice(s) of opposition
Dec 20, 2019
Reply of the patent proprietor to the notice(s) of opposition
Dec 6, 2019
Brief communication - Opposition proceedings
Dec 6, 2019
Rejection of request for extension of time limit
Nov 29, 2019
Request for extension of time limit
Aug 2, 2019
Communication of a notice of opposition and request to file observations
Aug 2, 2019
Notice of further oppositions to opponent(s)
Jul 23, 2019
Communication of a notice of opposition - first information to patent proprietor
Jul 17, 2019
(Electronic) Receipt
Jul 17, 2019
Citation in opposition procedure - 001
Jul 17, 2019
Citation in opposition procedure - 002
Jul 17, 2019
Citation in opposition procedure - 003
Jul 17, 2019
Citation in opposition procedure - 004
Jul 17, 2019
Citation in opposition procedure - 005
Jul 17, 2019
Citation in opposition procedure - 006
Jul 17, 2019
Citation in opposition procedure - 007
Jul 17, 2019
Citation in opposition procedure - 008
Jul 17, 2019
Citation in opposition procedure - 009
Jul 17, 2019
Consolidated list of cited opposition documents
Jul 17, 2019
Notice of opposition
Jul 17, 2019
Notice of opposition
Oct 29, 2018
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Sep 20, 2018
Decision to grant a European patent
Aug 23, 2018
English translation of the claims
Aug 23, 2018
Filing of the translations of the claims
Aug 23, 2018
French translation of claims
Jun 4, 2018
Bibliographic data of the European patent application
Jun 4, 2018
Communication about intention to grant a European patent
Jun 4, 2018
Intention to grant (signatures)
Jun 4, 2018
Text intended for grant (clean copy)
Jun 4, 2018
Text intended for grant (version for approval)
Apr 25, 2018
Examination started
Mar 27, 2018
Amended claims filed after receipt of (European) search report
Mar 27, 2018
Amended claims with annotations
Mar 27, 2018
Amended description filed after receipt of (European) search report
Mar 27, 2018
Amended description with annotations
Mar 27, 2018
Amendments received before examination
Oct 11, 2017
Communication of amended entries concerning the representative
Oct 4, 2017
Submission concerning change of applicant's representative
Oct 2, 2017
Reminder period for payment of examination fee/designation fee and correction of deficiencies in Written Opinion/amendment
Aug 30, 2017
Notification of forthcoming publication
Jul 19, 2017
Communication regarding the transmission of the European search report
Jul 19, 2017
European search opinion
Jul 19, 2017
European search report
Jul 19, 2017
Information on Search Strategy
Jul 12, 2017
Search started
May 3, 2017
Communication to designated inventor
May 3, 2017
Communication to designated inventor
May 3, 2017
Communication to designated inventor
May 3, 2017
Communication to designated inventor
Mar 21, 2017
Priority search results
Feb 9, 2017
Abstract
Feb 9, 2017
Claims
Feb 9, 2017
Description
Feb 9, 2017
Designation of inventor
Feb 9, 2017
Priority document
Feb 9, 2017
Request for grant of a European patent

EP3222647

WEYLCHEM WIESBADEN

Application Number: EP17000203A
Filing Date: Feb 9, 2017
Status: Revoked; Aug 13, 2021
Publication Date: Oct 17, 2018
External Links: Slate, Register , Google Patents

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Polyester, Method For Their Preparation And Their Use

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Dossier Documents

EP3222647