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Serving hundreds of leading biopharmaceutical companies globally:

UBS
Accenture
Federal Trade Commission
Baxter
AstraZeneca
Merck
Chubb
QuintilesIMS
McKinsey

Generated: June 23, 2018

DrugPatentWatch Database Preview

Details for Patent: 7,301,023

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Summary for Patent: 7,301,023
Title:Chiral salt resolution
Abstract: A method for resolving enantiomers of a compound containing the structure of the forula: ##STR00001## wherein R.sup.4 or R.sup.5 may contan one or more asymmetric centers, by mixing a racemic mixture of enantiomers of a compound, containing the structure of said formula; in a solvent, with a resolving compound having a defined sterospecificity, to form a solution and with said resolving agent being capable of binding with at least one but not all of said enantiomers to form a precipitate, containing said at least one of said enantiomers in sterospecific form and collecting either the precipitate and purifying it or collecting the solution with contained other of said enantiomers and recrystallizing the enantiomer contained in said solution.
Inventor(s): Flanagan; Mark E. (Gales Ferry, CT), Munchhof; Michael J. (Salem, CT)
Assignee: Pfizer Inc. (New York, NY)
Application Number:10/154,699
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 7,301,023
Patent Claim Types:
see list of patent claims
Use; Formulation;

Drugs Protected by US Patent 7,301,023

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Patent Submitted
Pfizer Inc XELJANZ XR tofacitinib citrate TABLET, EXTENDED RELEASE;ORAL 208246-001 Feb 23, 2016 RX Yes Yes ➤ Sign Up ➤ Sign Up Y ➤ Sign Up
Pf Prism Cv XELJANZ tofacitinib citrate TABLET;ORAL 203214-001 Nov 6, 2012 RX Yes Yes ➤ Sign Up ➤ Sign Up Y ➤ Sign Up
Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Patent Submitted

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Non-Orange Book US Patents Family Members for Patent 7,301,023

For Orange Book-listed patents (shown in the main table above) generic applications must certify that the listed patents are expired, invalid, or will not be infringed by generic entry.

The non-Orange Book patents listed below do not require formal certifications, so they do not automatically impede generic entry. Instead, they represent potential opportunities for branded firms to block generic entry through patent infringment challenges.

Patent No. Title Estimated Patent Expiration
7,432,370 Chiral salt resolution ➤ Sign Up
Patent No. Title Estimated Patent Expiration

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International Family Members for US Patent 7,301,023

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
African Regional IP Organization (ARIPO) 1859 ➤ Sign Up
Argentina 037321 ➤ Sign Up
Argentina 045680 ➤ Sign Up
Austria 519741 ➤ Sign Up
Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration

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Serving hundreds of leading biopharmaceutical companies globally:

Express Scripts
Farmers Insurance
Mallinckrodt
Argus Health
AstraZeneca
McKesson
Chubb
Healthtrust
McKinsey

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