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Polyester Polymers With Low Acetaldehyde Generation Rates And High Vinyl Ends Concentration

Patent No. EP2118166 (titled "Polyester Polymers With Low Acetaldehyde Generation Rates And High Vinyl Ends Concentration") was filed by Eastman Chemical on Jan 16, 2008. The application was issued on Oct 14, 2020.

Patent Summary

Patent Family

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
INVISTA	Jan 18, 2019	MICHALSKI HUTTERMANN & PARTNER
INVISTA	Jan 18, 2019	MICHALSKI HUTTERMANN & PARTNER PATENTANWALTE MBB

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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Sep 17, 2020
Decision to maintain the European patent in amended form
Sep 17, 2020
Decision to maintain the European patent in amended form
Sep 11, 2020
Termination of the opposition proceedings with maintenance of patent
Sep 1, 2020
(Electronic) Receipt
Sep 1, 2020
Filing of the translation of the amended claims
Sep 1, 2020
French translation of claims
Sep 1, 2020
German translation of the claims
Sep 1, 2020
Letter accompanying subsequently filed items
Jul 16, 2020
Communication to opponent concerning maintenance
Jul 16, 2020
Communication with request to file translations
Jul 8, 2020
Maintenance of the patent with the documents specified in the final decision
Mar 17, 2020
Advice of delivery
Mar 16, 2020
Advice of delivery
Mar 13, 2020
Acknowledgement of a document
Mar 13, 2020
Acknowledgement of a document
Mar 13, 2020
Decision of the Opposition Division and instruction
Mar 13, 2020
Druckexemplar in opposition procedure
Mar 13, 2020
Grounds for the decision (Annex) - opposition
Mar 13, 2020
Interlocutory decision in opposition proceedings
Mar 13, 2020
Internal form - Opposition/addressees
Mar 13, 2020
Means of redress
Feb 27, 2020
Notification concerning the date of oral proceedings
Feb 25, 2020
Notification concerning the date of oral proceedings
Feb 25, 2020
Notification concerning the date of oral proceedings
Feb 21, 2020
Brief communication - Opposition proceedings
Feb 19, 2020
Notification concerning the date of oral proceedings
Feb 18, 2020
Notification concerning the date of oral proceedings
Feb 18, 2020
Notification concerning the date of oral proceedings
Feb 17, 2020
(Electronic) Receipt
Feb 17, 2020
Description
Feb 17, 2020
Description
Feb 17, 2020
Letter accompanying subsequently filed items
Feb 17, 2020
Written submission in preparation to/during oral proceedings
Feb 14, 2020
Notification concerning the date of oral proceedings
Feb 14, 2020
Notification concerning the date of oral proceedings
Feb 14, 2020
Notification concerning the date of oral proceedings
Feb 6, 2020
Brief communication - Opposition proceedings
Feb 3, 2020
Brief communication - Opposition proceedings
Feb 3, 2020
Withdrawal of a request for oral proceedings
Jan 22, 2020
Brief communication - Opposition proceedings
Jan 17, 2020
Brief communication - Opposition proceedings
Jan 2, 2020
Brief communication - Opposition proceedings
Dec 17, 2019
(Electronic) Receipt
Dec 17, 2019
Amended claims with annotations
Dec 17, 2019
Amended claims with annotations
Dec 17, 2019
Amended claims with annotations
Dec 17, 2019
Amended claims with annotations
Dec 17, 2019
Amended claims with annotations
Dec 17, 2019
Amended claims with annotations
Dec 17, 2019
Amended claims with annotations
Dec 17, 2019
Amended claims with annotations
Dec 17, 2019
Claims
Dec 17, 2019
Claims
Dec 17, 2019
Claims
Dec 17, 2019
Claims
Dec 17, 2019
Claims
Dec 17, 2019
Claims
Dec 17, 2019
Claims
Dec 17, 2019
Claims
Dec 17, 2019
Letter accompanying subsequently filed items
Dec 17, 2019
Written submission in preparation to/during oral proceedings
Aug 30, 2019
Advice of delivery
Aug 28, 2019
Advice of delivery
Aug 28, 2019
Advice of delivery
Aug 26, 2019
Acknowledgement of a document
Aug 26, 2019
Acknowledgement of a document
Aug 26, 2019
Annex to the communication - opposition
Aug 26, 2019
Information concerning oral proceedings
Aug 26, 2019
Summons to attend oral proceedings
Aug 26, 2019
Summons to attend oral proceedings
Jun 14, 2019
Brief communication - Opposition proceedings
Jun 7, 2019
(Electronic) Receipt
Jun 7, 2019
Amended claims with annotations
Jun 7, 2019
Amended claims with annotations
Jun 7, 2019
Amended claims with annotations
Jun 7, 2019
Amended claims with annotations
Jun 7, 2019
Amended claims with annotations
Jun 7, 2019
Amended claims with annotations
Jun 7, 2019
Amended claims with annotations
Jun 7, 2019
Amended claims with annotations
Jun 7, 2019
Amended claims with annotations
Jun 7, 2019
Amended claims with annotations
Jun 7, 2019
Citation in opposition procedure - 002
Jun 7, 2019
Claims
Jun 7, 2019
Claims
Jun 7, 2019
Claims
Jun 7, 2019
Claims
Jun 7, 2019
Claims
Jun 7, 2019
Claims
Jun 7, 2019
Claims
Jun 7, 2019
Claims
Jun 7, 2019
Claims
Jun 7, 2019
Claims
Jun 7, 2019
Letter accompanying subsequently filed items
Jun 7, 2019
Reply of the patent proprietor to the notice(s) of opposition
Feb 8, 2019
Communication of a notice of opposition and request to file observations
Feb 8, 2019
Notice of further oppositions to opponent(s)
Jan 29, 2019
Communication of a notice of opposition - first information to patent proprietor
Jan 18, 2019
(Electronic) Receipt
Jan 18, 2019
Citation in opposition procedure - 001
Jan 18, 2019
Citation in opposition procedure - 002
Jan 18, 2019
Citation in opposition procedure - 003
Jan 18, 2019
Citation in opposition procedure - 004
Jan 18, 2019
Citation in opposition procedure - 005
Jan 18, 2019
Citation in opposition procedure - 006
Jan 18, 2019
Citation in opposition procedure - 007
Jan 18, 2019
Citation in opposition procedure - 008
Jan 18, 2019
Citation in opposition procedure - 009
Jan 18, 2019
Citation in opposition procedure - 010
Jan 18, 2019
Citation in opposition procedure - 011
Jan 18, 2019
Notice of opposition
Jan 18, 2019
Notice of opposition
May 7, 2018
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Mar 29, 2018
Decision to grant a European patent
Mar 14, 2018
(Electronic) Receipt
Mar 14, 2018
Filing of the translations of the claims
Mar 14, 2018
French translation of claims
Mar 14, 2018
German translation of the claims
Mar 14, 2018
Letter accompanying subsequently filed items
Nov 20, 2017
Bibliographic data of the European patent application
Nov 20, 2017
Communication about intention to grant a European patent
Nov 20, 2017
Intention to grant (signatures)
Nov 20, 2017
Text intended for grant (clean copy)
Nov 20, 2017
Text intended for grant (version for approval)
Jul 17, 2017
Amended claims with annotations
Jul 17, 2017
Claims
Jul 17, 2017
Reply to communication from the Examining Division
Mar 17, 2017
Annex to the communication
Mar 17, 2017
Communication from the Examining Division
Oct 13, 2016
Submission concerning representation
Oct 5, 2016
Amended claims with annotations
Oct 5, 2016
Claims
Oct 5, 2016
Reply to communication from the Examining Division
Jun 3, 2016
Annex to the communication
Jun 3, 2016
Communication from the Examining Division
May 31, 2016
Examination started
Sep 3, 2013
Communication concerning corrected entries of the applicant
Aug 28, 2013
Request for correction
Aug 28, 2013
Request for correction
Oct 5, 2011
CDS Clean up - amended data concerning the representative for the applicant
Oct 4, 2011
Submission concerning representation
Sep 1, 2011
Communication of the registration of a transfer or change of name and/or address
Aug 26, 2011
Submission concerning change of applicant's address
Aug 17, 2011
Communication of the registration of a transfer or change of name and/or address
Aug 9, 2011
Submission concerning a transfer of rights (applicant)
Dec 16, 2009
Refund of fees
Nov 4, 2009
Refund of fees
Oct 26, 2009
Amended claims filed after receipt of (European) search report
Oct 26, 2009
Amendments received before examination
Oct 26, 2009
Annex
Oct 21, 2009
Notification on forthcoming publication of bibliographic data
Oct 13, 2009
Copy of the international preliminary report on patentability
Sep 21, 2009
Communication regarding possible amendment of claims/payment of claims fees
Sep 15, 2009
Notice on debiting of fees
Aug 28, 2009
Amended claims filed after receipt of (European) search report
Aug 28, 2009
Request for entry into the European phase
Aug 17, 2009
Copy of the international preliminary report on patentability
Jun 19, 2009
Information on entry into European phase
Sep 2, 2008
Priority document (electronically transmitted)
Aug 14, 2008
Copy of the international search report
Aug 14, 2008
Published international application - A1
Mar 11, 2008
Notification of withdrawal of international application or designations
Feb 18, 2008
Abstract
Feb 18, 2008
Claims
Feb 18, 2008
Description

EP2118166

EASTMAN CHEMICAL

Application Number: EP08705609A
Filing Date: Jan 16, 2008
Status: Patent Maintained As Amended; Sep 11, 2020
Publication Date: Oct 14, 2020
External Links: Slate, Register , Google Patents