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Serving hundreds of leading biopharmaceutical companies globally:

Johnson and Johnson
AstraZeneca
Julphar
Colorcon
Cantor Fitzgerald
Baxter
QuintilesIMS
Healthtrust
Chubb

Generated: April 23, 2018

DrugPatentWatch Database Preview

Details for Patent: 7,902,206

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Which drugs does patent 7,902,206 protect, and when does it expire?

Patent 7,902,206 protects XIFAXAN and is included in two NDAs.

This patent has eighty-one patent family members in thirty-five countries.
Summary for Patent: 7,902,206
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; Giuseppe Claudio (Bologna, IT), Campana; Manuela (Bologna, IT), Braga; Dario (Bologna, IT), Confortini; Donatella (Bologna, IT), Cannata; Vincenzo (Bologna, IT), Righi; Paolo (Bologna, IT), Rosini; Goffredo (Bologna, IT)
Assignee: Alfa Wassermann, S.p.A. (Bologna, IT)
Application Number:12/119,600
Patent Claim Types:
see list of patent claims
Process; Composition; Dosage form;

Drugs Protected by US Patent 7,902,206

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 ➤ Try a Free Trial ➤ Try a Free Trial Y Y ➤ Try a Free Trial
Salix Pharms XIFAXAN rifaximin TABLET;ORAL 022554-001 Mar 24, 2010 RX Yes Yes ➤ Try a Free Trial ➤ Try a Free Trial Y Y ➤ Try a Free Trial
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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Foreign Priority and PCT Information for Patent: 7,902,206

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
ItalyM12003A002144Nov 07, 2003

Non-Orange Book US Patents Family Members for Patent 7,902,206

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
8,404,704 Use of polymorphic forms of rifaximin for medical preparations ➤ Try a Free Trial
8,158,781 Polymorphic forms .alpha., .beta. and .gamma. of rifaximin ➤ Try a Free Trial
7,906,542 Pharmaceutical compositions comprising polymorphic forms .alpha., .beta., and .gamma. of rifaximin ➤ Try a Free Trial
7,915,275 Use of polymorphic forms of rifaximin for medical preparations ➤ Try a Free Trial
Patent No. Title Estimated Patent Expiration

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International Patents Family Members for US Patent 7,902,206

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina 043547 ➤ Try a Free Trial
Argentina 081991 ➤ Try a Free Trial
Argentina 081992 ➤ Try a Free Trial
Austria 361927 ➤ Try a Free Trial
Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration

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Serving hundreds of leading biopharmaceutical companies globally:

Fuji
Mallinckrodt
Medtronic
QuintilesIMS
Covington
Express Scripts
Boehringer Ingelheim
Cerilliant
AstraZeneca

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