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:
May. 05, 2009
Filed:
Jan. 18, 2007
Applicants:
Subba Reddy Danda, Hyderabad, IN;
Narayan K. A. S. S. Garimella, Hyderabad, IN;
Srinivasa Rao V. N Divvela, Hyderabad, IN;
Ramesh Dandala, Hyderabad, IN;
Sivakumaran Meenakshisunderam, Hyderabad, IN;
Inventors:
Subba Reddy Danda, Hyderabad, IN;
Narayan K. A. S. S. Garimella, Hyderabad, IN;
Srinivasa Rao V. N Divvela, Hyderabad, IN;
Ramesh Dandala, Hyderabad, IN;
Sivakumaran Meenakshisunderam, Hyderabad, IN;
Assignee:
Aurobindo Pharma Ltd., Hyderabad, IN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F 9/38 (2006.01);
U.S. Cl.
CPC ...
Abstract
An improved process for bisphosphonylation of acids, substituted acids to obtain compounds with the formula using phosphorus trihalide, phosphorus acid, in presence of phenolic compounds as diluent/solvent.