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Serving hundreds of leading biopharmaceutical companies globally:

Merck
Cantor Fitzgerald
McKesson
Fuji
Fish and Richardson
Julphar
Chinese Patent Office
Mallinckrodt
Deloitte

Generated: May 26, 2018

DrugPatentWatch Database Preview

Details for Patent: 7,612,199

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Which drugs does patent 7,612,199 protect, and when does it expire?

Patent 7,612,199 protects XIFAXAN and is included in two NDAs.

This patent has eighty-one patent family members in thirty-five countries.
Summary for Patent: 7,612,199
Title:Polymorphic forms .alpha., .beta., and .gamma. of rifaximin
Abstract:Crystalline polymorphous forms of rifaximin (INN) antibiotic named rifaximin .alpha. and rifaximin .beta., and a poorly crystalline form named rifaximin .gamma., useful in the production of medicinal preparations containing rifaximin for oral and topical use and obtained by means of a crystallization carried out by hot-dissolving the raw rifaximin in ethyl alcohol and by causing the crystallization of the product by addition of water at a determinate temperature and for a determinate period of time, followed by a drying carried out under controlled conditions until reaching a settled water content in the end product, are the object of the invention.
Inventor(s): Viscomi; Guiseppe Glaudio (Bologna, IT), Campana; Manuela (Bologna, IT), Braga; Dario (Bologna, IT), Confortini; Donatella (Bologna, IT), Cannata; Vicenzo (Bologna, IT), Righi; Paolo (Bologna, IT), Rosini; Goffredo (Bologna, IT)
Assignee: Alfa Wassermann, S.p.A. (Bologna, IT)
Application Number:12/478,638
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 7,612,199
Patent Claim Types:
see list of patent claims
Compound;

Drugs Protected by US Patent 7,612,199

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
Salix Pharms XIFAXAN rifaximin TABLET;ORAL 021361-001 May 25, 2004 RX Yes Yes ➤ Sign Up ➤ Sign Up Y Y ➤ Sign Up
Salix Pharms XIFAXAN rifaximin TABLET;ORAL 022554-001 Mar 24, 2010 RX Yes Yes ➤ Sign Up ➤ Sign Up Y 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 7,612,199

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
8,158,781 Polymorphic forms .alpha., .beta. and .gamma. of rifaximin ➤ Sign Up
7,906,542 Pharmaceutical compositions comprising polymorphic forms .alpha., .beta., and .gamma. of rifaximin ➤ Sign Up
7,045,620 Polymorphous forms of rifaximin, processes for their production and use thereof in medicinal preparations ➤ Sign Up
8,158,644 Pharmaceutical compositions comprising polymorphic forms .alpha., .beta., and .gamma. of rifaximin ➤ Sign Up
Patent No. Title Estimated Patent Expiration

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Serving hundreds of leading biopharmaceutical companies globally:

Medtronic
Baxter
Chinese Patent Office
Harvard Business School
QuintilesIMS
McKinsey
Merck
Daiichi Sankyo
Cerilliant

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