Crystalline Forms Of (6R) -L-Erythro-Tetrahydrobiopterin Dihydrochloride

Patent No. EP1687308 (titled "Crystalline Forms Of (6R) -L-Erythro-Tetrahydrobiopterin Dihydrochloride") was filed by Merck & CIE on Nov 17, 2004. The application was issued on Jun 12, 2019.

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
LEDERER & KELLER	Mar 11, 2020	KALHAMMER
LEDERER & KELLER	Mar 11, 2020	LEDERER & KELLER PATENTANWALTE PARTNERSCHAFT 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 7, 2022
Communication to the parties concerning termination of the opposition proceedings - opposition rejected - no appeal lodged
Apr 7, 2022
Communication to the parties concerning the termination of the opposition proceedings (opponent)
Apr 4, 2022
Termination of the opposition proceedings with maintenance of patent
Jan 12, 2022
Advice of delivery
Dec 31, 2021
Advice of delivery
Dec 23, 2021
Annex to the communication - opposition
Dec 23, 2021
Decision of the Opposition Division and instruction
Dec 23, 2021
Decision rejecting the opposition
Dec 23, 2021
Decision rejecting the opposition
Dec 23, 2021
Grounds for the decision (Annex) - opposition
Dec 23, 2021
Means of redress
Dec 23, 2021
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Dec 23, 2021
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Dec 23, 2021
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Dec 23, 2021
Provision of a copy of the minutes - opposition procedure
Dec 23, 2021
Provision of a copy of the minutes - opposition procedure
Dec 23, 2021
Transmittal of decision / summons - opposition
Dec 23, 2021
Transmittal of decision / summons - opposition
Sep 13, 2021
Information about the result of oral proceedings
Aug 11, 2021
(Electronic) Receipt
Aug 11, 2021
Letter accompanying subsequently filed items
Jul 22, 2021
Brief communication - Opposition proceedings
Jul 22, 2021
Notification concerning the date of oral proceedings
Jul 16, 2021
(Electronic) Receipt
Jul 16, 2021
Letter accompanying subsequently filed items
Jul 16, 2021
Written submission in preparation to/during oral proceedings
Jul 9, 2021
Brief communication - Opposition proceedings
Jul 8, 2021
(Electronic) Receipt
Jul 8, 2021
Letter accompanying subsequently filed items
Jul 6, 2021
(Electronic) Receipt
Jul 6, 2021
Letter accompanying subsequently filed items
Jul 6, 2021
Written submission in preparation to/during oral proceedings
Feb 25, 2021
Notification concerning the date of oral proceedings
Feb 25, 2021
Notification concerning the date of oral proceedings
Feb 3, 2021
Communication of amended entries
Jan 11, 2021
(Electronic) Receipt
Jan 11, 2021
Letter accompanying subsequently filed items
Jan 11, 2021
Written submission in preparation to/during oral proceedings
Dec 14, 2020
Request for change of opponent's representative
Dec 9, 2020
Request for change of opponent's representative
Nov 30, 2020
Advice of delivery
Nov 23, 2020
Advice of delivery
Nov 9, 2020
Acknowledgement of a document
Nov 9, 2020
Acknowledgement of a document
Nov 9, 2020
Annex to the communication - opposition
Nov 9, 2020
Information concerning oral proceedings
Nov 9, 2020
Summons to attend oral proceedings
Nov 9, 2020
Summons to attend oral proceedings
Sep 22, 2020
Brief communication - Opposition proceedings
Sep 15, 2020
(Electronic) Receipt
Sep 15, 2020
Citation in opposition procedure - 007
Sep 15, 2020
Consolidated list of cited opposition documents
Sep 15, 2020
Letter accompanying subsequently filed items
Sep 15, 2020
Reply from the opponent to submission of proprietor
Jul 30, 2020
Brief communication - Opposition proceedings
Jul 24, 2020
(Electronic) Receipt
Jul 24, 2020
Citation in opposition procedure - 006
Jul 24, 2020
Letter accompanying subsequently filed items
Jul 24, 2020
Reply of the patent proprietor to the notice(s) of opposition
Mar 26, 2020
Communication of a notice of opposition and request to file observations
Mar 26, 2020
Notice of further oppositions to opponent(s)
Mar 17, 2020
Communication of a notice of opposition - first information to patent proprietor
Mar 11, 2020
(Electronic) Receipt
Mar 11, 2020
Citation in opposition procedure - 001
Mar 11, 2020
Citation in opposition procedure - 002
Mar 11, 2020
Citation in opposition procedure - 003
Mar 11, 2020
Citation in opposition procedure - 004
Mar 11, 2020
Citation in opposition procedure - 005
Mar 11, 2020
International publication (Pamphlet)
Mar 11, 2020
Notice of opposition
Mar 11, 2020
Notice of opposition
Dec 12, 2019
Confirmation of revocation of automatic debit order
Jun 25, 2019
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
May 29, 2019
Refund of fees
May 29, 2019
Refund of fees
May 16, 2019
Decision to grant a European patent
Apr 30, 2019
(Electronic) Receipt
Apr 30, 2019
Filing of the translations of the claims
Apr 30, 2019
French translation of claims
Apr 30, 2019
German translation of the claims
Apr 30, 2019
Letter accompanying subsequently filed items
Mar 6, 2019
Communication of the registration of a transfer or change of name and/or address
Feb 25, 2019
(Electronic) Receipt
Feb 25, 2019
Letter accompanying subsequently filed items
Feb 20, 2019
Brief communication to third party
Jan 24, 2019
Annexes in respect of a client data request
Jan 24, 2019
Submission concerning a transfer of rights (applicant)
Jan 14, 2019
Bibliographic data of the European patent application
Jan 14, 2019
Communication about intention to grant a European patent
Jan 14, 2019
Intention to grant (signatures)
Jan 14, 2019
Text intended for grant (clean copy)
Jan 14, 2019
Text intended for grant (version for approval)
Oct 25, 2018
Abstract
Oct 25, 2018
Amended description with annotations
Oct 25, 2018
Description
Oct 25, 2018
Non-scannable object
Oct 25, 2018
Non-scannable object
Oct 25, 2018
Reply to communication from the Examining Division
Oct 23, 2018
Abstract
Oct 23, 2018
Amended description with annotations
Oct 23, 2018
Amended drawings with annotations
Oct 23, 2018
Description
Oct 23, 2018
Drawings
Oct 23, 2018
Modified abstract
Oct 23, 2018
Reply to communication from the Examining Division
Aug 14, 2018
Grant of extension of time limit (examination procedure)
Aug 8, 2018
Request for extension of time limit to communication from the Examining Division
May 14, 2018
Annex to the communication
May 14, 2018
Communication from the Examining Division
Jan 16, 2018
Amended claims with annotations
Jan 16, 2018
Claims
Jan 16, 2018
Reply to communication from the Examining Division
Sep 21, 2017
Annex to the communication
Sep 21, 2017
Communication from the Examining Division
Jun 13, 2017
Abstract
Jun 13, 2017
Amended claims with annotations
Jun 13, 2017
Amended description with annotations
Jun 13, 2017
Claims
Jun 13, 2017
Description
Jun 13, 2017
Modified abstract
Jun 13, 2017
Non-scannable object
Jun 13, 2017
Non-scannable object
Jun 13, 2017
Reply to communication from the Examining Division
Apr 18, 2017
Grant of extension of time limit (examination procedure)
Apr 18, 2017
Request for extension of time limit to communication from the Examining Division
Apr 11, 2017
Request for extension of time limit to communication from the Examining Division
Dec 14, 2016
Annex to the communication
Dec 14, 2016
Communication from the Examining Division
Dec 8, 2016
Abstract
Dec 8, 2016
Claims
Dec 8, 2016
Description
Dec 8, 2016
Non-scannable object
Dec 8, 2016
Non-scannable object
Dec 8, 2016
Non-scannable object
Dec 8, 2016
Non-scannable object
Dec 8, 2016
Non-scannable object
Dec 8, 2016
Non-scannable object
Dec 8, 2016
Reply to communication from the Examining Division
Dec 6, 2016
Abstract
Dec 6, 2016
Abstract
Dec 6, 2016
Amended claims with annotations
Dec 6, 2016
Amended description with annotations
Dec 6, 2016
Amended drawings with annotations
Dec 6, 2016
Claims
Dec 6, 2016
Description
Dec 6, 2016
Drawings
Dec 6, 2016
Reply to communication from the Examining Division
Oct 7, 2016
Grant of extension of time limit (examination procedure)
Oct 6, 2016
Request for extension of time limit to communication from the Examining Division
Sep 30, 2016
Request for extension of time limit to communication from the Examining Division
Jun 7, 2016
Annex to the communication
Jun 7, 2016
Communication from the Examining Division
Apr 1, 2016
Amended claims with annotations
Apr 1, 2016
Claims
Apr 1, 2016
Non-patent literature cited during the examination procedure
Apr 1, 2016
Non-patent literature cited during the examination procedure
Apr 1, 2016
Non-patent literature cited during the examination procedure
Apr 1, 2016
Reply to communication from the Examining Division
Mar 30, 2016
Amended claims with annotations
Mar 30, 2016
Claims
Mar 30, 2016
Non-patent literature cited during the examination procedure
Mar 30, 2016
Non-patent literature cited during the examination procedure
Mar 30, 2016
Reply to communication from the Examining Division
Feb 1, 2016
Grant of extension of time limit (examination procedure)
Jan 22, 2016
Request for extension of time limit to communication from the Examining Division
Oct 2, 2015
Annex to the communication
Oct 2, 2015
Communication from the Examining Division
Aug 21, 2015
Brief communication to applicant/representative
Jul 24, 2015
Non-patent literature filed by a third party
Jul 24, 2015
Non-patent literature filed by a third party
Jul 24, 2015
Non-patent literature filed by a third party
Jul 24, 2015
Non-patent literature filed by a third party
Jul 24, 2015
Non-patent literature filed by a third party
Jul 24, 2015
Non-patent literature filed by a third party
Jul 24, 2015
Non-patent literature filed by a third party
Jul 24, 2015
Non-patent literature filed by a third party
Jul 24, 2015
Patent document filed by a Third party
Jul 24, 2015
Patent document filed by a Third party
Jul 24, 2015
Patent document filed by a Third party
Jul 24, 2015
Patent document filed by a Third party
Jul 24, 2015
Reply to communication to third party
Jul 3, 2015
Transmittal of third party observations to applicant
Jul 2, 2015
Acknowledgement of receipt of third party observations
Jun 9, 2015
Observations by third parties
May 22, 2012
Non-patent literature filed by a third party
May 22, 2012
Observations by third parties
Mar 22, 2012
Transmittal of third party observations to applicant
Mar 19, 2012
Non-patent literature filed by a third party
Mar 19, 2012
Observations by third parties
Feb 13, 2012
Transmittal of third party observations to applicant
Feb 2, 2012
Citation filed by a third party
Feb 2, 2012
Non-patent literature filed by a third party
Feb 2, 2012
Non-patent literature filed by a third party
Feb 2, 2012
Non-patent literature filed by a third party
Feb 2, 2012
Observations by third parties
Feb 2, 2012
Patent document filed by a Third party
Feb 2, 2012
Patent document filed by a Third party
May 24, 2011
Annex
May 24, 2011
Claims
May 24, 2011
Reply to communication from the Examining Division
May 18, 2011
Annex
May 18, 2011
Claims
May 18, 2011
Reply to communication from the Examining Division
Jan 14, 2011
Grant of extension of time limit (examination procedure)
Jan 14, 2011
Request for extension of time limit to communication from the Examining Division
Jan 11, 2011
Request for extension of time limit to communication from the Examining Division
Nov 19, 2010
Annex to the communication
Nov 19, 2010
Communication from the Examining Division
Oct 14, 2008
Claims
Oct 14, 2008
Reply to communication from the Examining Division
Oct 7, 2008
Claims
Oct 7, 2008
Reply to communication from the Examining Division
Jul 3, 2008
Grant of extension of time limit (examination procedure)
Jul 3, 2008
Request for extension of time limit to communication from the Examining Division
Jun 27, 2008
Request for extension of time limit to communication from the Examining Division
Apr 10, 2008
Annex to the communication
Apr 10, 2008
Communication from the Examining Division
Oct 2, 2007
Letter concerning the priority
Oct 2, 2007
Priority document
Jun 26, 2007
Priority document not received from IB during Euro-PCT phase
Aug 14, 2006
Reply by International Bureau
Jul 28, 2006
Enquiry with the International Bureau
Jul 12, 2006
Communication regarding possible amendment of claims/payment of claims fees
Jul 12, 2006
Notification on forthcoming publication of bibliographic data
Jun 22, 2006
Copy of the international search report
Jun 22, 2006
International publication of the international search report
Jun 22, 2006
Reply by International Bureau
Jun 7, 2006
Copy of the international preliminary report on patentability
Jun 1, 2006
Enquiry with the International Bureau
May 29, 2006
Information on entry into European phase
May 18, 2006
Annex
May 16, 2006
Amended claims filed after receipt of (European) search report
May 16, 2006
Annex
May 16, 2006
Fax request to enter the European phase
May 16, 2006
Matter concerning the application
Jul 21, 2005
Published international application - A2
Jul 7, 2005
Abstract
Jul 7, 2005
Claims
Jul 7, 2005
Description
Jul 7, 2005
Drawings

EP1687308

MERCK & CIE

Application Number: EP04820966A
Filing Date: Nov 17, 2004
Status: Opposition Rejected; Apr 8, 2022
Publication Date: Jun 12, 2019
External Links: Slate, Register , Google Patents

IP Verse

Crystalline Forms Of (6R) -L-Erythro-Tetrahydrobiopterin Dihydrochloride

Patent Summary

Patent Family

Patent Oppositions (2)

Dossier Documents

EP1687308