Process For The Production Of 2-Hydroxy-4-Methylmercaptobutyric Acid

Patent No. EP1309739 (titled "Process For The Production Of 2-Hydroxy-4-Methylmercaptobutyric Acid") was filed by Degussa on Jul 19, 2001. The application was issued on Nov 5, 2014.

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
ARKEMA FRANCE	Aug 4, 2015	HIRSCH & ASSOCIES

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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Oct 19, 2017
Communication to the parties concerning the termination of the opposition proceedings (opponent)
Oct 19, 2017
Communication to the parties concerning the termination of the opposition proceedings (proprietor)
Oct 16, 2017
Termination of the opposition proceedings with revocation of patent
Jul 17, 2017
Advice of delivery
Jul 13, 2017
Advice of delivery
Jul 11, 2017
Advice of delivery
Jul 5, 2017
Advice of delivery
Jul 4, 2017
Acknowledgement of a document
Jul 4, 2017
Acknowledgement of a document
Jul 4, 2017
Decision revoking the European patent
Jul 4, 2017
Decision revoking the European patent
Jun 30, 2017
Brief communication - Opposition proceedings
Jun 27, 2017
Notification concerning the date of oral proceedings
Jun 27, 2017
Notification concerning the date of oral proceedings
Jun 27, 2017
Notification concerning the date of oral proceedings
Jun 26, 2017
(Electronic) Receipt
Jun 26, 2017
Letter accompanying subsequently filed items
Jun 26, 2017
Request for revocation of patent
May 18, 2017
Notification concerning the date of oral proceedings
May 18, 2017
Notification concerning the date of oral proceedings
May 8, 2017
Brief communication - Opposition proceedings
May 8, 2017
Brief communication - Opposition proceedings
May 2, 2017
(Electronic) Receipt
May 2, 2017
Auxiliary request during Opposition procedure
May 2, 2017
Auxiliary request during Opposition procedure
May 2, 2017
Clean copy of description pages in the opposition procedure
May 2, 2017
Description
May 2, 2017
Letter accompanying subsequently filed items
May 2, 2017
Letter regarding the opposition procedure (no time limit)
Apr 28, 2017
Brief communication - Opposition proceedings
Apr 26, 2017
(Electronic) Receipt
Apr 26, 2017
Brief communication - Opposition proceedings
Apr 26, 2017
Letter accompanying subsequently filed items
Apr 26, 2017
Withdrawal of a request for oral proceedings
Apr 11, 2017
Brief communication - Opposition proceedings
Apr 5, 2017
(Electronic) Receipt
Apr 5, 2017
Letter accompanying subsequently filed items
Apr 5, 2017
Letter regarding the opposition procedure (no time limit)
Nov 10, 2016
Advice of delivery
Nov 4, 2016
Advice of delivery
Nov 4, 2016
Advice of delivery
Nov 2, 2016
Advice of delivery
Oct 31, 2016
Acknowledgement of a document
Oct 31, 2016
Acknowledgement of a document
Oct 31, 2016
Annex to the communication - opposition
Oct 31, 2016
Information concerning oral proceedings
Oct 31, 2016
Preparation for oral proceedings
Oct 31, 2016
Summons to attend oral proceedings
Oct 31, 2016
Summons to attend oral proceedings
Oct 24, 2016
Information about the result of oral proceedings
Feb 24, 2016
Brief communication - Opposition proceedings
Feb 19, 2016
(Electronic) Receipt
Feb 19, 2016
Letter accompanying subsequently filed items
Feb 19, 2016
Reply of the patent proprietor to the notice(s) of opposition
Jan 25, 2016
Brief communication - Opposition proceedings
Jan 25, 2016
Grant of extension of time limit (opposition procedure)
Jan 19, 2016
(Electronic) Receipt
Jan 19, 2016
Letter accompanying subsequently filed items
Jan 19, 2016
Request for extension of time limit
Oct 6, 2015
Brief communication - Opposition proceedings
Sep 30, 2015
(Electronic) Receipt
Sep 30, 2015
Letter accompanying subsequently filed items
Sep 30, 2015
Letter regarding the opposition procedure (no time limit)
Sep 30, 2015
Patent document cited during the opposition procedure
Sep 30, 2015
Patent document cited during the opposition procedure
Sep 30, 2015
Patent document cited during the opposition procedure
Sep 30, 2015
Patent document cited during the opposition procedure
Sep 14, 2015
Communication of a notice of opposition and request to file observations
Sep 14, 2015
Notice of further oppositions to opponent(s)
Aug 12, 2015
Communication of a notice of opposition - first information to patent proprietor
Aug 12, 2015
Request for documents
Aug 4, 2015
(Electronic) Receipt
Aug 4, 2015
Non-patent literature cited during the opposition procedure
Aug 4, 2015
Non-patent literature cited during the opposition procedure
Aug 4, 2015
Notice of opposition
Aug 4, 2015
Notice of opposition
Nov 5, 2014
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Oct 9, 2014
Decision to grant a European patent
Sep 19, 2014
(Electronic) Receipt
Sep 19, 2014
Filing of the translations of the claims
Sep 19, 2014
French translation of claims
Sep 19, 2014
German translation of the claims
Sep 19, 2014
Letter accompanying subsequently filed items
Jul 14, 2014
Bibliographic data of the European patent application
Jul 14, 2014
Communication about intention to grant a European patent
Jul 14, 2014
Intention to grant (signatures)
Jul 14, 2014
Text intended for grant
May 4, 2013
General enquiry
Jul 7, 2008
Communication of the registration of a transfer or change of name and/or address
Jun 28, 2008
Submission concerning change of applicant's name
Jun 27, 2008
Submission concerning change of applicant's name
Oct 9, 2007
Communication of the registration of a transfer or change of name and/or address
Oct 6, 2007
Annexes filed during the procedure of transfer of rights
Oct 6, 2007
Claims
Oct 6, 2007
Reply to communication from the Examining Division
Sep 28, 2007
Request for change of name
Jun 14, 2007
Annex to the communication
Jun 14, 2007
Communication from the Examining Division
May 24, 2007
Response to enquiry for communication from the Examining Division
May 15, 2007
Enquiry as to when a communication from the Examining Division can be expected
Jan 19, 2007
Communication of the registration of a transfer or change of name and/or address
Jan 15, 2007
Request for change of name
Jan 5, 2007
Request for change of name
Jun 2, 2004
Priority document (electronically transmitted)
Jun 1, 2004
Priority document (electronically transmitted)
Apr 3, 2003
Communication regarding possible amendment of claims/payment of claims fees
Apr 2, 2003
Notification on forthcoming publication of bibliographic data
Mar 21, 2003
Communication to designated inventor
Mar 21, 2003
Communication to designated inventor
Mar 21, 2003
Communication to designated inventor
Mar 21, 2003
Communication to designated inventor
Mar 21, 2003
Communication to designated inventor
Jan 16, 2003
General authorisation
Jan 16, 2003
Letter accompanying subsequently filed items
Jan 16, 2003
Request for entry into the European phase
Jan 3, 2003
Information on entry into European phase
May 23, 2002
Annex
May 23, 2002
Notification of defects in the demand
Apr 26, 2002
Copy of the international preliminary examination report
Mar 22, 2002
International preliminary examination report - Automated
Mar 22, 2002
Notification of documents sent to WIPO
Mar 22, 2002
Refund of fees
Mar 22, 2002
Transmittal of International Preliminary Examination Report
Mar 13, 2002
Notification of documents sent to WIPO
Mar 13, 2002
Notification of receipt of demand
Mar 5, 2002
Priority document (electronically transmitted)
Feb 28, 2002
Copy of the international search report
Feb 28, 2002
Published international application - A1
Feb 20, 2002
PCT demand form
Aug 24, 2001
Abstract
Aug 24, 2001
Claims
Aug 24, 2001
Description
Aug 24, 2001
Drawings

EP1309739

DEGUSSA

Application Number: EP01955361A
Filing Date: Jul 19, 2001
Status: Revoked; Apr 15, 2019
Publication Date: Nov 5, 2014
External Links: Slate, Register , Google Patents

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Process For The Production Of 2-Hydroxy-4-Methylmercaptobutyric Acid

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Dossier Documents

EP1309739