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.

Date of Patent:
Jan. 18, 2011

Filed:

Jun. 13, 2005
Applicants:

Satish Chandra Pandey, Noida, IN;

Hussain Haider, Noida, IN;

Sudhanshu Saxena, Noida, IN;

Manoj Kumar Singh, Noida, IN;

Rajesh Kumar Thaper, Noida, IN;

Sushil Kumar Dubey, Noida, IN;

Inventors:

Satish Chandra Pandey, Noida, IN;

Hussain Haider, Noida, IN;

Sudhanshu Saxena, Noida, IN;

Manoj Kumar Singh, Noida, IN;

Rajesh Kumar Thaper, Noida, IN;

Sushil Kumar Dubey, Noida, IN;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07F 9/38 (2006.01); C07F 9/06 (2006.01);
U.S. Cl.
CPC ...
Abstract

Disclosed herein is a process for producing bisphosphonic acids and salts thereof. The process comprising reacting a carboxylic acid of Formula [I] with phosphorous acid and halophosphorus compound in the presence of a solvent selected from aliphatic hydrocarbon or water miscible cyclic ether. Further, the present invention also provides novel forms of bisphosphonic acids and process for preparation thereof.


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