Atazanavir Sulfate Formulations With Improved Ph Effect

Patent No. EP2555757 (titled "Atazanavir Sulfate Formulations With Improved Ph Effect") was filed by Bristol Myers Squibb on Apr 7, 2011. The application was issued on May 25, 2016.

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
HEXAL	Feb 24, 2017	TER MEER UND PARTNER

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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Jan 19, 2018
Communication to the parties concerning the termination of the opposition proceedings (opponent)
Jan 19, 2018
Communication to the parties concerning the termination of the opposition proceedings (proprietor)
Jan 16, 2018
Termination of the opposition proceedings with revocation of patent
Oct 27, 2017
Advice of delivery
Oct 27, 2017
Advice of delivery
Oct 10, 2017
Advice of delivery
Oct 9, 2017
Advice of delivery
Oct 5, 2017
Acknowledgement of a document
Oct 5, 2017
Acknowledgement of a document
Jul 12, 2017
Brief communication - Opposition proceedings
Jul 6, 2017
(Electronic) Receipt
Jul 6, 2017
Letter accompanying subsequently filed items
Jul 6, 2017
Request for revocation of patent
Apr 5, 2017
Communication of a notice of opposition and request to file observations
Apr 5, 2017
Notice of further oppositions to opponent(s)
Mar 9, 2017
Communication of a notice of opposition - first information to patent proprietor
Feb 24, 2017
(Electronic) Receipt
Feb 24, 2017
Non-patent literature cited during the opposition procedure
Feb 24, 2017
Non-patent literature cited during the opposition procedure
Feb 24, 2017
Non-patent literature cited during the opposition procedure
Feb 24, 2017
Non-patent literature cited during the opposition procedure
Feb 24, 2017
Non-patent literature cited during the opposition procedure
Feb 24, 2017
Non-patent literature cited during the opposition procedure
Feb 24, 2017
Notice of opposition
Feb 24, 2017
Notice of opposition
Feb 24, 2017
Patent document cited during the opposition procedure
May 25, 2016
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Apr 29, 2016
Decision to grant a European patent
Mar 2, 2016
(Electronic) Receipt
Mar 2, 2016
Filing of the translations of the claims
Mar 2, 2016
French translation of claims
Mar 2, 2016
German translation of the claims
Mar 2, 2016
Letter accompanying subsequently filed items
Oct 23, 2015
Bibliographic data of the European patent application
Oct 23, 2015
Communication about intention to grant a European patent
Oct 23, 2015
Intention to grant (signatures)
Oct 23, 2015
Text intended for grant (clean copy)
Oct 23, 2015
Text intended for grant (version for approval)
Sep 18, 2015
(Electronic) Receipt
Sep 18, 2015
Amended claims with annotations
Sep 18, 2015
Amended description with annotations
Sep 18, 2015
Claims
Sep 18, 2015
Description
Sep 18, 2015
Letter accompanying subsequently filed items
Sep 18, 2015
Reply to communication from the Examining Division
May 13, 2015
Annex to the communication
May 13, 2015
Communication from the Examining Division
Jan 14, 2015
Communication of the registration of a transfer or change of name and/or address
Dec 30, 2014
Submission concerning change of applicant's address
Dec 8, 2014
Submission concerning change of applicant's address
Jun 18, 2014
Amended claims with annotations
Jun 18, 2014
Claims
Jun 18, 2014
Reply to communication from the Examining Division
Jun 12, 2014
Amended claims with annotations
Jun 12, 2014
Claims
Jun 12, 2014
Reply to communication from the Examining Division
May 16, 2014
Submission concerning representation
Apr 22, 2014
Grant of extension of time limit (examination procedure)
Apr 17, 2014
Request for extension of time limit to communication from the Examining Division
Apr 14, 2014
Request for extension of time limit to communication from the Examining Division
Dec 2, 2013
Annex to the communication
Dec 2, 2013
Communication from the Examining Division
Nov 25, 2013
Examination started
Nov 8, 2013
Communication of the registration of a transfer or change of name and/or address
Sep 13, 2013
Annexes in respect of a client data request
Sep 13, 2013
Payment of fees and costs
Sep 13, 2013
Submission concerning a transfer of rights (applicant)
Sep 12, 2013
Annexes in respect of a client data request
Sep 12, 2013
Payment of fees and costs
Sep 12, 2013
Payment of fees and costs
Sep 12, 2013
Submission concerning a transfer of rights (applicant)
May 27, 2013
Amended claims filed after receipt of (European) search report
May 27, 2013
Amended claims with annotations
May 27, 2013
Amendments received before examination
Feb 11, 2013
Letter which had not been notified
Jan 16, 2013
Notification on forthcoming publication of bibliographic data
Dec 6, 2012
Republication of front page of international application with corrected bibliographic data
Nov 16, 2012
Communication concerning correction of deficiencies in written opinion/amendment of application/payment of claims fee
Nov 15, 2012
Communication in cases for which no other form is applicable
Nov 14, 2012
Communication to designated inventor
Nov 14, 2012
Communication to designated inventor
Nov 14, 2012
Communication to designated inventor
Oct 24, 2012
Copy of the international preliminary report on patentability
Oct 5, 2012
(Electronic) Receipt
Oct 5, 2012
Request for entry into the European phase
Aug 20, 2012
Information on entry into European phase
May 15, 2012
Reminder for payment period (examination fee/designation fees)
May 10, 2012
Copy of the international search report
May 10, 2012
International publication of the international search report
Mar 22, 2012
Written opinion of the ISA, boxes No. I to VIII
Mar 22, 2012
Written opinion of the ISA, cover sheet
Mar 22, 2012
Written opinion of the ISA, supplemental box
Nov 1, 2011
Priority document (electronically transmitted)
Oct 13, 2011
Published international application - A2
Apr 18, 2011
Abstract
Apr 18, 2011
Claims
Apr 18, 2011
Description

EP2555757

BRISTOL MYERS SQUIBB

Application Number: EP11714907A
Filing Date: Apr 7, 2011
Status: Revoked; Jan 19, 2018
Publication Date: May 25, 2016
External Links: Slate, Register , Google Patents

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Atazanavir Sulfate Formulations With Improved Ph Effect

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Dossier Documents

EP2555757