The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 12, 2008
Filed:
Aug. 10, 2004
Applicants:
Vijaykumar Muljibhai Patel, Akota, IN;
Trinadha Rao Chitturi, Akota, IN;
Rajamannar Thennati, Akota, IN;
Inventors:
Vijaykumar Muljibhai Patel, Akota, IN;
Trinadha Rao Chitturi, Akota, IN;
Rajamannar Thennati, Akota, IN;
Assignee:
Sun Pharmaceutical Industries Limited, Mumbai, IN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F 9/22 (2006.01); C07F 9/28 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides a novel process for preparation of bisphosphonic acids or salts thereof, e.g. alendronic acid, by reacting a carboxylic acid, phosphorous acid and a halophosphorous compound in a water miscible neutral solvent.