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Polyester Compositions Which Comprise Spiro-Glycol, Cyclohexanedimethanol, And Terephthalic Acid

Patent No. EP2358786 (titled "Polyester Compositions Which Comprise Spiro-Glycol, Cyclohexanedimethanol, And Terephthalic Acid") was filed by Eastman Chemical on Dec 17, 2009. The application was issued on May 7, 2025.

Patent Summary

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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
VOSSIUS & PARTNER PATENTANWALTE RECHTSANWALTE MBB	Jan 31, 2018	VOSSIUS & PARTNER PATENTANWALTE RECHTSANWALTE 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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Apr 10, 2025
Decision to maintain the European patent in amended form
Apr 10, 2025
Decision to maintain the European patent in amended form
Mar 31, 2025
(Electronic) Receipt
Mar 31, 2025
Filing of the translation of the amended claims
Mar 31, 2025
French translation of claims
Mar 31, 2025
German translation of the claims
Mar 31, 2025
Letter accompanying subsequently filed items
Feb 13, 2025
Communication of bibliographic data
Feb 13, 2025
Communication to opponent concerning maintenance
Feb 13, 2025
Communication with request to file translations
Feb 6, 2025
Maintenance of the patent with the documents specified in the final decision
Nov 7, 2024
Annex to the communication - opposition
Nov 7, 2024
Brief communication - Opposition proceedings
Nov 7, 2024
Brief communication - Opposition proceedings
Nov 7, 2024
Druckexemplar in opposition procedure
Nov 7, 2024
Grounds for the decision (Annex) - opposition
Nov 7, 2024
Interlocutory decision in opposition proceedings
Nov 7, 2024
Interlocutory decision in opposition proceedings
Nov 7, 2024
Means of redress
Nov 7, 2024
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Nov 7, 2024
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Nov 7, 2024
Provision of a copy of the minutes - opposition procedure
Nov 7, 2024
Provision of a copy of the minutes - opposition procedure
Nov 7, 2024
Scanned annex to a communication - opposition procedure
Nov 7, 2024
Scanned annex to a communication - opposition procedure
Nov 5, 2024
Decision of the Opposition Division and instruction
Sep 18, 2024
Information about the result of oral proceedings
Jul 23, 2024
Brief communication - Opposition proceedings
Jul 22, 2024
Brief communication - Opposition proceedings
Jul 19, 2024
Brief communication - Opposition proceedings
Jul 18, 2024
(Electronic) Receipt
Jul 18, 2024
Letter accompanying subsequently filed items
Jul 18, 2024
Request for interpreters during oral proceedings
Jul 17, 2024
(Electronic) Receipt
Jul 17, 2024
Auxiliary request during Opposition procedure
Jul 17, 2024
Auxiliary request during Opposition procedure
Jul 17, 2024
Auxiliary request during Opposition procedure
Jul 17, 2024
Auxiliary request during Opposition procedure
Jul 17, 2024
Auxiliary request during Opposition procedure - 01
Jul 17, 2024
Auxiliary request during Opposition procedure - 02
Jul 17, 2024
Auxiliary request during Opposition procedure - 03
Jul 17, 2024
Auxiliary request during Opposition procedure - 04
Jul 17, 2024
Citation in opposition procedure - 007
Jul 17, 2024
Consolidated list of cited opposition documents
Jul 17, 2024
Letter accompanying subsequently filed items
Jul 17, 2024
Main request during Opposition procedure
Jul 17, 2024
Main request during Opposition procedure
Jul 17, 2024
Written submission in preparation to/during oral proceedings
Jul 16, 2024
(Electronic) Receipt
Jul 16, 2024
Brief communication - Opposition proceedings
Jul 16, 2024
Letter accompanying subsequently filed items
Jul 16, 2024
Written submission in preparation to/during oral proceedings
Jul 10, 2024
(Electronic) Receipt
Jul 10, 2024
Citation in opposition procedure - 006
Jul 10, 2024
Letter accompanying subsequently filed items
Jul 10, 2024
Written submission in preparation to/during oral proceedings
Jul 31, 2023
Advice of delivery
Jul 25, 2023
Advice of delivery
Jul 24, 2023
Annex to the communication - opposition
Jul 24, 2023
Information concerning oral proceedings
Jul 24, 2023
Summons to attend oral proceedings
Jul 24, 2023
Summons to attend oral proceedings
Jul 24, 2023
Transmittal of decision / summons - opposition
Jul 24, 2023
Transmittal of decision / summons - opposition
Oct 28, 2022
Decision of the Board of Appeal
Oct 28, 2022
Decision of the Board of Appeal
Oct 28, 2022
F3032 Notification(s) of the decision
Oct 28, 2022
F3032 Notification(s) of the decision
Sep 26, 2022
F3013 Oral Proceedings: Forwarding minutes
Sep 26, 2022
F3013 Oral Proceedings: Forwarding minutes
Sep 26, 2022
F3315 Oral Proceedings: Minutes (Appellant : Proprietor)
Sep 26, 2022
F3315 Oral Proceedings: Minutes (Appellant : Proprietor)
Sep 13, 2022
(Electronic) Receipt
Sep 13, 2022
F3345 Forwarding of submissions to parties
Sep 13, 2022
Letter accompanying subsequently filed items
Sep 13, 2022
Letter dealing with oral proceedings during the appeal procedure
Aug 25, 2022
F3345 Forwarding of submissions to parties
Aug 24, 2022
F3345 Forwarding of submissions to parties
Aug 22, 2022
(Electronic) Receipt
Aug 22, 2022
Letter accompanying subsequently filed items
Aug 22, 2022
Letter dealing with oral proceedings during the appeal procedure
Aug 18, 2022
(Electronic) Receipt
Aug 18, 2022
Letter accompanying subsequently filed items
Aug 18, 2022
Letter dealing with oral proceedings during the appeal procedure
Aug 18, 2022
Request for interpreters during oral proceedings
Jul 6, 2022
Oral proceedings: change of venue
Jul 6, 2022
Oral proceedings: change of venue
Jul 5, 2022
F3345 Forwarding of submissions to parties
Jun 30, 2022
(Electronic) Receipt
Jun 30, 2022
Letter accompanying subsequently filed items
Jun 30, 2022
Letter dealing with oral proceedings during the appeal procedure
Jun 28, 2022
Oral proceedings: reply to date proposed
May 20, 2022
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
May 20, 2022
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Jan 14, 2022
F3022 Oral proceedings: change of board composition
Jan 14, 2022
F3022 Oral proceedings: change of board composition
Jan 7, 2022
F3303.16 Change of composition of the Board (T)
Dec 6, 2021
F3011.1 Oral Proceedings: summons
Dec 6, 2021
F3011.1 Oral Proceedings: summons
Dec 1, 2021
F3010 Oral proceedings: order for summons
Dec 1, 2021
F3303.16 Change of composition of the Board (T)
Apr 8, 2021
F3303.16 Change of composition of the Board (T)
Mar 23, 2020
F3345 Forwarding of submissions to parties
Mar 13, 2020
Reply to appeal
Nov 12, 2019
Composition of the board (T)
Nov 6, 2019
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Oct 29, 2019
(Electronic) Receipt
Oct 29, 2019
Amended claims with annotations
Oct 29, 2019
Amended claims with annotations
Oct 29, 2019
Amended claims with annotations
Oct 29, 2019
Amended claims with annotations
Oct 29, 2019
Amended claims with annotations
Oct 29, 2019
Amended claims with annotations
Oct 29, 2019
Amended claims with annotations
Oct 29, 2019
Claims
Oct 29, 2019
Claims
Oct 29, 2019
Claims
Oct 29, 2019
Claims
Oct 29, 2019
Claims
Oct 29, 2019
Claims
Oct 29, 2019
Claims
Oct 29, 2019
Letter accompanying subsequently filed items
Oct 29, 2019
Statement of grounds of appeal
Aug 22, 2019
F3204 Communication of the file number to the parties
Aug 22, 2019
F3204 Communication of the file number to the parties
Aug 16, 2019
(Electronic) Receipt
Aug 16, 2019
Letter accompanying subsequently filed items
Aug 16, 2019
Notice of appeal
Jun 26, 2019
Advice of delivery
Jun 25, 2019
Advice of delivery
Jun 25, 2019
Advice of delivery
Jun 25, 2019
Advice of delivery
Jun 19, 2019
Acknowledgement of a document
Jun 19, 2019
Acknowledgement of a document
Jun 19, 2019
Annex to the communication - opposition
Jun 19, 2019
Decision of the Opposition Division and instruction
Jun 19, 2019
Decision revoking the European patent
Jun 19, 2019
Grounds for the decision (Annex) - opposition
Jun 19, 2019
Internal form - Opposition/addressees
Jun 19, 2019
Internal form - Opposition/addressees
Jun 19, 2019
Means of redress
Jun 19, 2019
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Jun 19, 2019
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Jun 19, 2019
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Jun 19, 2019
Provision of a copy of the minutes - opposition procedure
Jun 19, 2019
Scanned annex to a communication - opposition procedure
May 28, 2019
Information about the result of oral proceedings
May 24, 2019
Brief communication - Opposition proceedings
May 22, 2019
Brief communication - Opposition proceedings
May 20, 2019
(Electronic) Receipt
May 20, 2019
Auxiliary request during Opposition procedure
May 20, 2019
Auxiliary request during Opposition procedure
May 20, 2019
Auxiliary request during Opposition procedure
May 20, 2019
Auxiliary request during Opposition procedure - 01
May 20, 2019
Auxiliary request during Opposition procedure - 02
May 20, 2019
Auxiliary request during Opposition procedure - 03
May 20, 2019
Letter accompanying subsequently filed items
May 20, 2019
Main request during Opposition procedure
May 20, 2019
Main request during Opposition procedure
May 20, 2019
Written submission in preparation to/during oral proceedings
Apr 3, 2019
Brief communication - Opposition proceedings
Mar 29, 2019
Brief communication - Opposition proceedings
Mar 28, 2019
Brief communication - Opposition proceedings
Mar 27, 2019
Citation in opposition procedure - 004
Mar 27, 2019
Citation in opposition procedure - 005
Mar 27, 2019
Written submission in preparation to/during oral proceedings
Mar 25, 2019
Request for interpreters during oral proceedings
Mar 22, 2019
(Electronic) Receipt
Mar 22, 2019
Letter accompanying subsequently filed items
Mar 22, 2019
Request for interpreters during oral proceedings
Oct 18, 2018
Advice of delivery
Oct 11, 2018
Advice of delivery
Oct 11, 2018
Advice of delivery
Oct 9, 2018
Advice of delivery
Oct 5, 2018
Annex to the communication - opposition
Oct 5, 2018
Information concerning oral proceedings
Oct 5, 2018
Preparation for oral proceedings
Oct 5, 2018
Summons to attend oral proceedings
Oct 5, 2018
Summons to attend oral proceedings
Jul 9, 2018
Brief communication - Opposition proceedings
Jul 3, 2018
(Electronic) Receipt
Jul 3, 2018
Auxiliary request during Opposition procedure
Jul 3, 2018
Auxiliary request during Opposition procedure - 01
Jul 3, 2018
Letter accompanying subsequently filed items
Jul 3, 2018
Main request during Opposition procedure
Jul 3, 2018
Main request during Opposition procedure
Jul 3, 2018
Reply of the patent proprietor to the notice(s) of opposition
Jun 1, 2018
Brief communication - Opposition proceedings
Jun 1, 2018
Communication confirming withdrawal from representation
Jun 1, 2018
Communication of amended entries concerning the representative
May 18, 2018
(Electronic) Receipt
May 18, 2018
Letter accompanying subsequently filed items
May 18, 2018
Submission concerning change of applicant's representative
May 17, 2018
(Electronic) Receipt
May 17, 2018
Letter accompanying subsequently filed items
May 17, 2018
Submission concerning change of applicant's representative
Mar 6, 2018
Brief communication - Opposition proceedings
Mar 6, 2018
Brief communication - Opposition proceedings
Feb 28, 2018
Letter regarding the opposition procedure (no time limit)
Feb 21, 2018
Communication of a notice of opposition and request to file observations
Feb 21, 2018
Notice of further oppositions to opponent(s)
Feb 9, 2018
Communication of a notice of opposition - first information to patent proprietor
Jan 31, 2018
(Electronic) Receipt
Jan 31, 2018
Notice of opposition
Jan 31, 2018
Notice of opposition
May 3, 2017
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Apr 6, 2017
Decision to grant a European patent
Mar 22, 2017
Filing of the translations of the claims
Mar 22, 2017
French translation of claims
Mar 22, 2017
German translation of the claims
Mar 22, 2017
Payment of fees and costs
Dec 16, 2016
Bibliographic data of the European patent application
Dec 16, 2016
Communication about intention to grant a European patent
Dec 16, 2016
Intention to grant (signatures)
Dec 16, 2016
Text intended for grant (clean copy)
Dec 16, 2016
Text intended for grant (version for approval)
Nov 16, 2016
Examination started
Mar 30, 2015
CDS Clean up - amended data concerning the representative for the applicant
Mar 26, 2015
Submission concerning representation
Nov 29, 2011
Reply to Written Opinion prepared by the EPO
Jul 28, 2011
Communication regarding comments on written opinion/amendment of application/payment of claims fee
Jul 27, 2011
Notification on forthcoming publication of bibliographic data
Jul 6, 2011
Copy of the international preliminary report on patentability
May 20, 2011
Information on entry into European phase
May 10, 2011
Amended claims filed after receipt of (European) search report
May 10, 2011
Amendments received before examination
May 10, 2011
Request for entry into the European phase
Aug 4, 2010
Priority document (electronically transmitted)
Jul 15, 2010
Copy of the international search report
Jul 15, 2010
Published international application - A1
Mar 24, 2010
Written opinion of the ISA, boxes No. I to VIII
Mar 24, 2010
Written opinion of the ISA, cover sheet
Mar 24, 2010
Written opinion of the ISA, supplemental box
Feb 2, 2010
Notification of withdrawal of international application or designations
Jan 11, 2010
Abstract
Jan 11, 2010
Claims
Jan 11, 2010
Description

EP2358786

EASTMAN CHEMICAL

Application Number: EP09795586A
Filing Date: Dec 17, 2009
Status: Patent Maintained As Amended; Apr 4, 2025
Publication Date: May 7, 2025
External Links: Slate, Register , Google Patents