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Process For The Preparation Of Diamine/Dicarboxylic Acid Salts And Polyamides Thereof

Patent No. EP2951147 (titled "Process For The Preparation Of Diamine/Dicarboxylic Acid Salts And Polyamides Thereof") was filed by DSM Assets on Jan 30, 2014. The application was issued on Aug 2, 2017.

Patent Summary

Patent Family

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
INVISTA RL	May 2, 2018	CARPMAELS & RANSFORD

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 29, 2025
Refund of fees
Apr 4, 2025
(Electronic) Receipt
Apr 4, 2025
Filing of the translation of the amended claims
Apr 4, 2025
French translation of claims
Apr 4, 2025
German translation of the claims
Apr 4, 2025
Letter accompanying subsequently filed items
Jan 13, 2025
Communication of bibliographic data
Jan 6, 2025
Maintenance of the patent with the documents specified in the final decision
Oct 4, 2024
Brief communication - Opposition proceedings
Oct 4, 2024
Brief communication - Opposition proceedings
Oct 4, 2024
Decision of the Opposition Division and instruction
Oct 4, 2024
Druckexemplar in opposition procedure
Oct 4, 2024
Grounds for the decision (Annex) - opposition
Oct 4, 2024
Interlocutory decision in opposition proceedings
Oct 4, 2024
Interlocutory decision in opposition proceedings
Oct 4, 2024
Means of redress
Aug 12, 2024
Brief communication - Opposition proceedings
Aug 6, 2024
(Electronic) Receipt
Aug 6, 2024
Amended description with annotations
Aug 6, 2024
Description
Aug 6, 2024
Letter accompanying subsequently filed items
Aug 6, 2024
Reply to an examination report in opposition proceedings
Jul 29, 2024
Communication of the registration of a transfer or change of name and/or address
Jul 22, 2024
Annexes in respect of a client data request
Jul 22, 2024
Annexes in respect of a client data request
Jul 22, 2024
Submission concerning a transfer of rights (applicant)
Jun 4, 2024
Brief communication - Opposition proceedings
May 29, 2024
(Electronic) Receipt
May 29, 2024
Letter accompanying subsequently filed items
May 29, 2024
Reply to an examination report in opposition proceedings
May 24, 2024
Annex to the communication - opposition
May 24, 2024
Brief communication - Opposition proceedings
May 24, 2024
Brief communication - Opposition proceedings
May 24, 2024
Communication inviting the parties to file observations
May 24, 2024
Communication inviting the parties to file observations
Jan 30, 2024
(Electronic) Receipt
Jan 30, 2024
Amended description with annotations
Jan 30, 2024
Description
Jan 30, 2024
Letter accompanying subsequently filed items
Jan 30, 2024
Reply to an examination report in opposition proceedings
Dec 19, 2023
Communication of amended entries concerning the representative
Dec 7, 2023
Annex
Dec 7, 2023
Letter accompanying subsequently filed items
Dec 7, 2023
Submission concerning change of applicant's representative
Nov 28, 2023
Annex to the communication - opposition
Nov 28, 2023
Brief communication - Opposition proceedings
Nov 28, 2023
Brief communication - Opposition proceedings
Nov 28, 2023
Communication inviting the parties to file observations
Nov 28, 2023
Communication inviting the parties to file observations
Sep 20, 2023
Decision of the Board of Appeal
Sep 20, 2023
Decision of the Board of Appeal
Sep 20, 2023
F3032 Notification(s) of the decision
Sep 20, 2023
F3032 Notification(s) of the decision
Jul 26, 2023
F3013 Oral Proceedings: Forwarding minutes
Jul 26, 2023
F3013 Oral Proceedings: Forwarding minutes
Jul 26, 2023
F3317 Oral Proceedings: Minutes (Appellant: Proprietor + Opponent)
Jul 18, 2023
F3345 Forwarding of submissions to parties
Jul 17, 2023
(Electronic) Receipt
Jul 17, 2023
(Electronic) Receipt
Jul 17, 2023
Annexes (other than cited documents) regarding appeal procedure
Jul 17, 2023
Letter accompanying subsequently filed items
Jul 17, 2023
Letter accompanying subsequently filed items
Jul 17, 2023
Letter dealing with oral proceedings during the appeal procedure
Jul 17, 2023
Letter dealing with oral proceedings during the appeal procedure
Jul 12, 2023
F3345 Forwarding of submissions to parties
Jul 11, 2023
(Electronic) Receipt
Jul 11, 2023
Letter accompanying subsequently filed items
Jul 11, 2023
Letter dealing with oral proceedings during the appeal procedure
Jun 14, 2023
(Electronic) Receipt
Jun 14, 2023
Letter regarding the opposition procedure (no time limit)
Jun 13, 2023
F3345 Forwarding of submissions to parties
Jun 13, 2023
Oral proceedings: change of venue
Jun 13, 2023
Oral proceedings: change of venue
Jun 9, 2023
(Electronic) Receipt
Jun 9, 2023
Letter accompanying subsequently filed items
Jun 9, 2023
Letter dealing with oral proceedings during the appeal procedure
Jun 2, 2023
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Jun 2, 2023
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
May 19, 2023
F3345 Forwarding of submissions to parties
May 18, 2023
(Electronic) Receipt
May 18, 2023
Letter dealing with oral proceedings during the appeal procedure
May 18, 2023
Letter regarding the opposition procedure (no time limit)
Aug 17, 2022
F3345 Forwarding of submissions to parties
Aug 11, 2022
(Electronic) Receipt
Aug 11, 2022
Letter regarding the opposition procedure (no time limit)
Aug 11, 2022
Request for interpreters during oral proceedings
Aug 1, 2022
F3011.1 Oral Proceedings: summons
Aug 1, 2022
F3011.1 Oral Proceedings: summons
Jul 29, 2022
F3345 Forwarding of submissions to parties
Jul 27, 2022
F3010 Oral proceedings: order for summons
Jul 26, 2022
(Electronic) Receipt
Jul 26, 2022
Letter accompanying subsequently filed items
Jul 26, 2022
Letter relating to Appeal Procedure
Mar 8, 2022
F3345 Forwarding of submissions to parties
Mar 7, 2022
F3345 Forwarding of submissions to parties
Mar 2, 2022
(Electronic) Receipt
Mar 2, 2022
Citation in appeal procedure - 019
Mar 2, 2022
F3345 Forwarding of submissions to parties
Mar 2, 2022
Letter regarding the opposition procedure (no time limit)
Mar 2, 2022
Letter relating to Appeal Procedure
Mar 1, 2022
(Electronic) Receipt
Mar 1, 2022
Citation in appeal procedure - 018
Mar 1, 2022
Letter accompanying subsequently filed items
Mar 1, 2022
Letter relating to Appeal Procedure
Feb 25, 2022
(Electronic) Receipt
Feb 25, 2022
Amended claims with annotations
Feb 25, 2022
Amended claims with annotations
Feb 25, 2022
Amended claims with annotations
Feb 25, 2022
Amended claims with annotations
Feb 25, 2022
Amended claims with annotations
Feb 25, 2022
Amended claims with annotations
Feb 25, 2022
Authorisation
Feb 25, 2022
Claims
Feb 25, 2022
Claims
Feb 25, 2022
Claims
Feb 25, 2022
Claims
Feb 25, 2022
Claims
Feb 25, 2022
Claims
Feb 25, 2022
Letter accompanying subsequently filed items
Feb 25, 2022
Letter relating to Appeal Procedure
Oct 22, 2021
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Oct 22, 2021
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Aug 5, 2021
Letter accompanying subsequently filed items
Aug 5, 2021
Request for change of opponent's representative
Sep 15, 2020
Composition of the board (T)
Apr 22, 2020
F3345 Forwarding of submissions to parties
Apr 16, 2020
(Electronic) Receipt
Apr 16, 2020
Letter regarding the opposition procedure (no time limit)
Apr 16, 2020
Reply to appeal
Apr 8, 2020
F3345 Forwarding of submissions to parties
Apr 2, 2020
(Electronic) Receipt
Apr 2, 2020
Annexes (other than cited documents) regarding appeal procedure
Apr 2, 2020
Annexes (other than cited documents) regarding appeal procedure
Apr 2, 2020
Annexes (other than cited documents) regarding appeal procedure
Apr 2, 2020
Annexes (other than cited documents) regarding appeal procedure
Apr 2, 2020
Letter accompanying subsequently filed items
Apr 2, 2020
Reply to appeal
Dec 2, 2019
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Nov 25, 2019
(Electronic) Receipt
Nov 25, 2019
Letter accompanying subsequently filed items
Nov 25, 2019
Non-Patent Literature cited during the appeal procedure
Nov 25, 2019
Non-Patent Literature cited during the appeal procedure
Nov 25, 2019
Non-Patent Literature cited during the appeal procedure
Nov 25, 2019
Patent Document cited during the appeal procedure
Nov 25, 2019
Statement of grounds of appeal
Nov 25, 2019
Statement of grounds of appeal
Nov 22, 2019
(Electronic) Receipt
Nov 22, 2019
Claims
Nov 22, 2019
Claims
Nov 22, 2019
Claims
Nov 22, 2019
Claims
Nov 22, 2019
Claims
Nov 22, 2019
Claims
Nov 22, 2019
Claims
Nov 22, 2019
Claims
Nov 22, 2019
Claims
Nov 22, 2019
Claims
Nov 22, 2019
Claims
Nov 22, 2019
Claims
Nov 22, 2019
Claims
Nov 22, 2019
Claims
Nov 22, 2019
Claims
Nov 22, 2019
Claims
Nov 22, 2019
Claims
Nov 22, 2019
Claims
Nov 22, 2019
Claims
Nov 22, 2019
Claims
Nov 22, 2019
Claims
Nov 22, 2019
Claims
Nov 22, 2019
Claims
Nov 22, 2019
Letter accompanying subsequently filed items
Nov 22, 2019
Statement of grounds of appeal
Oct 1, 2019
F3204 Communication of the file number to the parties
Sep 25, 2019
(Electronic) Receipt
Sep 25, 2019
Letter accompanying subsequently filed items
Sep 25, 2019
Notice of appeal
Sep 18, 2019
F3204 Communication of the file number to the parties
Sep 13, 2019
(Electronic) Receipt
Sep 13, 2019
Letter accompanying subsequently filed items
Sep 13, 2019
Notice of appeal
Jul 29, 2019
Advice of delivery
Jul 29, 2019
Advice of delivery
Jul 26, 2019
Advice of delivery
Jul 15, 2019
Acknowledgement of a document
Jul 15, 2019
Acknowledgement of a document
Jul 15, 2019
Annex to the communication - opposition
Jul 15, 2019
Decision of the Opposition Division and instruction
Jul 15, 2019
Druckexemplar in opposition procedure
Jul 15, 2019
Grounds for the decision (Annex) - opposition
Jul 15, 2019
Interlocutory decision in opposition proceedings
Jul 15, 2019
Internal form - Opposition/addressees
Jul 15, 2019
Internal form - Opposition/addressees
Jul 15, 2019
Means of redress
Jul 15, 2019
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Jul 15, 2019
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Jul 15, 2019
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Jul 15, 2019
Provision of a copy of the minutes - opposition procedure
Jul 15, 2019
Scanned annex to a communication - opposition procedure
May 13, 2019
Information about the result of oral proceedings
Apr 29, 2019
Brief communication - Opposition proceedings
Apr 26, 2019
(Electronic) Receipt
Apr 26, 2019
Citation in opposition procedure
Apr 26, 2019
Letter accompanying subsequently filed items
Apr 26, 2019
Written submission in preparation to/during oral proceedings
Mar 20, 2019
Brief communication - Opposition proceedings
Mar 14, 2019
Brief communication - Opposition proceedings
Mar 13, 2019
Brief communication - Opposition proceedings
Mar 12, 2019
(Electronic) Receipt
Mar 12, 2019
Citation in opposition procedure
Mar 12, 2019
Letter accompanying subsequently filed items
Mar 12, 2019
Written submission in preparation to/during oral proceedings
Mar 11, 2019
(Electronic) Receipt
Mar 11, 2019
Amended claims with annotations
Mar 11, 2019
Amended claims with annotations
Mar 11, 2019
Amended claims with annotations
Mar 11, 2019
Amended claims with annotations
Mar 11, 2019
Amended claims with annotations
Mar 11, 2019
Amended claims with annotations
Mar 11, 2019
Amended claims with annotations
Mar 11, 2019
Amended claims with annotations
Mar 11, 2019
Amended claims with annotations
Mar 11, 2019
Amended claims with annotations
Mar 11, 2019
Amended claims with annotations
Mar 11, 2019
Amended claims with annotations
Mar 11, 2019
Claims
Mar 11, 2019
Claims
Mar 11, 2019
Claims
Mar 11, 2019
Claims
Mar 11, 2019
Claims
Mar 11, 2019
Claims
Mar 11, 2019
Claims
Mar 11, 2019
Claims
Mar 11, 2019
Claims
Mar 11, 2019
Claims
Mar 11, 2019
Claims
Mar 11, 2019
Claims
Mar 11, 2019
Claims
Mar 11, 2019
Letter accompanying subsequently filed items
Mar 11, 2019
Request for interpreters during oral proceedings
Mar 11, 2019
Written submission in preparation to/during oral proceedings
Mar 7, 2019
(Electronic) Receipt
Mar 7, 2019
Request for interpreters during oral proceedings
Nov 9, 2018
Advice of delivery
Nov 9, 2018
Advice of delivery
Oct 31, 2018
(Electronic) Receipt
Oct 31, 2018
Advice of delivery
Oct 31, 2018
Letter accompanying subsequently filed items
Oct 29, 2018
Acknowledgement of a document
Oct 29, 2018
Acknowledgement of a document
Oct 29, 2018
Annex to the communication - opposition
Oct 29, 2018
Information concerning oral proceedings
Oct 29, 2018
Preparation for oral proceedings
Oct 29, 2018
Summons to attend oral proceedings
Oct 29, 2018
Summons to attend oral proceedings
Oct 22, 2018
Information about the result of oral proceedings
Sep 20, 2018
Brief communication - Opposition proceedings
Sep 14, 2018
(Electronic) Receipt
Sep 14, 2018
Amended claims with annotations
Sep 14, 2018
Amended claims with annotations
Sep 14, 2018
Amended claims with annotations
Sep 14, 2018
Claims
Sep 14, 2018
Claims
Sep 14, 2018
Claims
Sep 14, 2018
Claims
Sep 14, 2018
Letter accompanying subsequently filed items
Sep 14, 2018
Reply of the patent proprietor to the notice(s) of opposition
May 17, 2018
Communication of a notice of opposition and request to file observations
May 17, 2018
Notice of further oppositions to opponent(s)
May 9, 2018
Communication of a notice of opposition - first information to patent proprietor
May 2, 2018
(Electronic) Receipt
May 2, 2018
Citation in opposition procedure
May 2, 2018
Citation in opposition procedure
May 2, 2018
Citation in opposition procedure
May 2, 2018
Citation in opposition procedure
May 2, 2018
Citation in opposition procedure
May 2, 2018
Citation in opposition procedure
May 2, 2018
Non-patent literature cited during the opposition procedure
May 2, 2018
Non-patent literature cited during the opposition procedure
May 2, 2018
Non-patent literature cited during the opposition procedure
May 2, 2018
Non-patent literature cited during the opposition procedure
May 2, 2018
Notice of opposition
May 2, 2018
Notice of opposition
May 2, 2018
Patent document cited during the opposition procedure
May 2, 2018
Patent document cited during the opposition procedure
May 2, 2018
Patent document cited during the opposition procedure
May 2, 2018
Patent document cited during the opposition procedure
May 2, 2018
Patent document cited during the opposition procedure
May 2, 2018
Patent document cited during the opposition procedure
Oct 18, 2017
Communication of amended entries concerning the representative
Oct 3, 2017
Submission concerning change of applicant's representative
Aug 3, 2017
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Jul 6, 2017
Decision to grant a European patent
Jun 20, 2017
(Electronic) Receipt
Jun 20, 2017
Filing of the translations of the claims
Jun 20, 2017
French translation of claims
Jun 20, 2017
German translation of the claims
Jun 20, 2017
Letter accompanying subsequently filed items
Mar 17, 2017
Bibliographic data of the European patent application
Mar 17, 2017
Communication about intention to grant a European patent
Mar 17, 2017
Intention to grant (signatures)
Mar 17, 2017
Text intended for grant (clean copy)
Mar 17, 2017
Text intended for grant (version for approval)
Feb 20, 2017
Processing of request for correction of text proposed for grant or third party observations (from 01-04-2012)
Jan 30, 2017
(Electronic) Receipt
Jan 30, 2017
Amended claims with annotations
Jan 30, 2017
Claims
Jan 30, 2017
Letter accompanying subsequently filed items
Jan 30, 2017
Request for correction/amendment of the text proposed for grant sent from 01.04.2012
Jan 30, 2017
Translation of the claims
Jan 30, 2017
Translation of the claims
Nov 10, 2016
Processing of request for correction of text proposed for grant or third party observations (from 01-04-2012)
Nov 4, 2016
Transmittal of third party observations to applicant
Oct 26, 2016
Observations by third parties
Oct 26, 2016
Patent document filed by a Third party
Oct 26, 2016
Patent document filed by a Third party
Oct 4, 2016
Bibliographic data of the European patent application
Oct 4, 2016
Communication about intention to grant a European patent
Oct 4, 2016
Intention to grant (signatures)
Oct 4, 2016
Text intended for grant (clean copy)
Oct 4, 2016
Text intended for grant (version for approval)
Aug 19, 2016
Examination started
Mar 7, 2016
(Electronic) Receipt
Mar 7, 2016
Amended description filed after receipt of (European) search report
Mar 7, 2016
Amended description with annotations
Mar 7, 2016
Amendments received before examination
Mar 7, 2016
Letter accompanying subsequently filed items
Nov 11, 2015
Notification on forthcoming publication of bibliographic data
Sep 8, 2015
Communication regarding comments on written opinion/amendment of application/payment of claims fee
Sep 4, 2015
Communication to designated inventor
Sep 4, 2015
Communication to designated inventor
Sep 4, 2015
Communication to designated inventor
Sep 4, 2015
Communication to designated inventor
Sep 4, 2015
Communication to designated inventor
Sep 1, 2015
Priority search results copy provided by EPO
Aug 17, 2015
Copy of the international preliminary report on patentability
Jul 13, 2015
(Electronic) Receipt
Jul 13, 2015
Request for entry into the European phase
Jun 12, 2015
Information on entry into European phase
Aug 26, 2014
Priority document (electronically transmitted)
Aug 7, 2014
Copy of the international search report
Aug 7, 2014
Published international application - A1
Apr 11, 2014
Written opinion of the ISA, boxes No. I to VIII
Apr 11, 2014
Written opinion of the ISA, cover sheet
Apr 11, 2014
Written opinion of the ISA, supplemental box
Jan 30, 2014
(Electronic) Receipt
Jan 30, 2014
Abstract
Jan 30, 2014
Claims
Jan 30, 2014
Description

EP2951147

DSM ASSETS

Application Number: EP14702248A
Filing Date: Jan 30, 2014
Status: Granted And Under Opposition; Jun 30, 2017
Publication Date: Aug 2, 2017
External Links: Slate, Register , Google Patents