Modified Resins And Uses Thereof

Patent No. EP3606991 (titled "Modified Resins And Uses Thereof") was filed by Eastman Chemical on Apr 2, 2018. The application was issued on Feb 19, 2025.

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
RAIN CARBON GERMANY	Nov 19, 2025	COHAUSZ & FLORACK

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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Dec 1, 2025
Communication of a notice of opposition and request to file observations
Dec 1, 2025
Notice of further oppositions to opponent(s)
Nov 24, 2025
Communication of a notice of opposition - first information to patent proprietor
Nov 19, 2025
(Electronic) Receipt
Nov 19, 2025
Any annexes (other than citation) to an opposition letter
Nov 19, 2025
Citation in opposition procedure - 001
Nov 19, 2025
Citation in opposition procedure - 002
Nov 19, 2025
Citation in opposition procedure - 003
Nov 19, 2025
Citation in opposition procedure - 006
Nov 19, 2025
Citation in opposition procedure - 007
Nov 19, 2025
Citation in opposition procedure - 007
Nov 19, 2025
Citation in opposition procedure - 008
Nov 19, 2025
Consolidated list of cited opposition documents
Nov 19, 2025
Letter regarding the opposition procedure (no time limit)
Nov 19, 2025
Notice of opposition
Nov 19, 2025
Notice of opposition
Mar 4, 2025
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Jan 23, 2025
Decision to grant a European patent
Jan 10, 2025
(Electronic) Receipt
Jan 10, 2025
French translation of claims
Jan 10, 2025
German translation of the claims
Jan 10, 2025
Letter accompanying subsequently filed items
Sep 27, 2024
Annex to the communication about intention to grant a European patent
Sep 27, 2024
Bibliographic data of the European patent application
Sep 27, 2024
Communication about intention to grant a European patent
Sep 27, 2024
Intention to grant (signatures)
Sep 27, 2024
Text intended for grant (clean copy)
Sep 27, 2024
Text intended for grant (version for approval)
Apr 24, 2024
(Electronic) Receipt
Apr 24, 2024
Amended claims with annotations
Apr 24, 2024
Claims
Apr 24, 2024
Letter accompanying subsequently filed items
Apr 24, 2024
Reply to communication from the Examining Division
Feb 21, 2024
Annex to the communication
Feb 21, 2024
Communication from the Examining Division
Oct 27, 2023
(Electronic) Receipt
Oct 27, 2023
Amended claims with annotations
Oct 27, 2023
Amended description with annotations
Oct 27, 2023
Claims
Oct 27, 2023
Description
Oct 27, 2023
Letter accompanying subsequently filed items
Oct 27, 2023
Reply to communication from the Examining Division
Aug 1, 2023
Annex to the communication
Aug 1, 2023
Communication from the Examining Division
Feb 14, 2023
(Electronic) Receipt
Feb 14, 2023
Amended description with annotations
Feb 14, 2023
Description
Feb 14, 2023
Letter accompanying subsequently filed items
Feb 14, 2023
Reply to communication from the Examining Division
Dec 5, 2022
Annex to the communication
Dec 5, 2022
Communication from the Examining Division
Sep 28, 2022
Communication of the registration of a transfer or change of name and/or address
Jul 18, 2022
Indication of deficiencies in a request for registering a transfer of rights and invitation to correct them
Jul 8, 2022
(Electronic) Receipt
Jul 8, 2022
Amended claims with annotations
Jul 8, 2022
Claims
Jul 8, 2022
Letter accompanying subsequently filed items
Jul 8, 2022
Reply to communication from the Examining Division
Jul 5, 2022
Annexes in respect of a client data request
Jul 5, 2022
Annexes in respect of a client data request
Jul 5, 2022
Letter accompanying subsequently filed items
Jul 5, 2022
Submission concerning a transfer of rights (applicant)
May 24, 2022
Refund of fees
Mar 1, 2022
Annex to the communication
Mar 1, 2022
Communication from the Examining Division
Jan 26, 2022
(Electronic) Receipt
Jan 26, 2022
Amended claims with annotations
Jan 26, 2022
Claims
Jan 26, 2022
Letter accompanying subsequently filed items
Jan 26, 2022
Request for correction/amendment of the text proposed for grant sent from 01.04.2012
Oct 1, 2021
Bibliographic data of the European patent application
Oct 1, 2021
Communication about intention to grant a European patent
Oct 1, 2021
Intention to grant (signatures)
Oct 1, 2021
Text intended for grant (clean copy)
Oct 1, 2021
Text intended for grant (version for approval)
Aug 6, 2021
(Electronic) Receipt
Aug 6, 2021
Amended claims with annotations
Aug 6, 2021
Claims
Aug 6, 2021
Letter accompanying subsequently filed items
Aug 6, 2021
Request for correction/amendment of the text proposed for grant sent from 01.04.2012
Jun 21, 2021
Bibliographic data of the European patent application
Jun 21, 2021
Communication about intention to grant a European patent
Jun 21, 2021
Intention to grant (signatures)
Jun 21, 2021
Text intended for grant (clean copy)
Jun 21, 2021
Text intended for grant (version for approval)
Apr 27, 2021
(Electronic) Receipt
Apr 27, 2021
Amended claims with annotations
Apr 27, 2021
Claims
Apr 27, 2021
Letter accompanying subsequently filed items
Apr 27, 2021
Request for correction/amendment of the text proposed for grant sent from 01.04.2012
Jan 20, 2021
Bibliographic data of the European patent application
Jan 20, 2021
Communication about intention to grant a European patent
Jan 20, 2021
Intention to grant (signatures)
Jan 20, 2021
Text intended for grant (clean copy)
Jan 20, 2021
Text intended for grant (version for approval)
Nov 25, 2020
Examination started
Apr 15, 2020
(Electronic) Receipt
Apr 15, 2020
Amended claims filed after receipt of (European) search report
Apr 15, 2020
Amended claims with annotations
Apr 15, 2020
Amendments received before examination
Apr 15, 2020
Letter accompanying subsequently filed items
Feb 18, 2020
Invitation to indicate correct address of inventor
Feb 10, 2020
Letter which had not been notified
Jan 22, 2020
Communication to designated inventor
Jan 15, 2020
Notification on forthcoming publication of bibliographic data
Jan 14, 2020
Letter concerning the inventor
Dec 13, 2019
Invitation to indicate correct address of inventor
Dec 10, 2019
Letter which had not been notified
Nov 12, 2019
Communication regarding comments on written opinion/amendment of application/payment of claims fee
Nov 8, 2019
Communication to designated inventor
Nov 8, 2019
Communication to designated inventor
Nov 8, 2019
Communication to designated inventor
Nov 8, 2019
Communication to designated inventor
Nov 8, 2019
Communication to designated inventor
Nov 8, 2019
Communication to designated inventor
Nov 8, 2019
Communication to designated inventor
Nov 8, 2019
Communication to designated inventor
Nov 8, 2019
Communication to designated inventor
Nov 8, 2019
Communication to designated inventor
Oct 22, 2019
Copy of the international preliminary report on patentability
Oct 3, 2019
Citation filed by a third party
Oct 3, 2019
Citation filed by a third party
Oct 3, 2019
Citation filed by a third party
Oct 3, 2019
Citation filed by a third party
Oct 3, 2019
Observations by third parties
Oct 3, 2019
Observations by third parties
Oct 2, 2019
(Electronic) Receipt
Oct 2, 2019
Request for entry into the European phase
Aug 19, 2019
Information on entry into European phase
Jan 14, 2019
Annex
Jan 14, 2019
Incoming letter related to ISA procedure
Jan 14, 2019
Substitute sheet (Rule 26) - request form for ISA/EP
Oct 30, 2018
Priority document (electronically transmitted)
Oct 11, 2018
Copy of the international search report
Oct 11, 2018
Published international application - A1
Jul 30, 2018
ISR: cited documents
Jul 27, 2018
Written opinion of the ISA, boxes No. I to VIII
Jul 27, 2018
Written opinion of the ISA, cover sheet
Jul 27, 2018
Written opinion of the ISA, supplemental box
May 23, 2018
Notification of receipt of Search copy
Apr 20, 2018
Abstract
Apr 20, 2018
Annex
Apr 20, 2018
Claims
Apr 20, 2018
Description
Apr 20, 2018
Drawings
Apr 20, 2018
Fee calculation sheet for an international application
Apr 20, 2018
Incoming letter related to ISA procedure
Apr 20, 2018
Notification Concerning Payment of Prescribed Fees (copy for ISA/EP)
Apr 20, 2018
Notification of the International Application Number and of the International Filing Date (copy for ISA/EP)
Apr 20, 2018
Request form for international application (copy for ISA/EP)

EP3606991

EASTMAN CHEMICAL

Application Number: EP18722776A
Filing Date: Apr 2, 2018
Status: Granted And Under Opposition; Jan 17, 2025
Publication Date: Feb 19, 2025
External Links: Slate, Register , Google Patents

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Modified Resins And Uses Thereof

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Dossier Documents

EP3606991