Patents by Inventor Chakilam Raju

Chakilam Raju has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

Anhydrous crystalline forms of I and II of 1-cyclopropyl-6-fluoro-8-methoxy-7-(3-methyl-1- piperazinyl) 4-oxo-1, 4-dihydroquinoline-3-carboxylic acid (gatifloxacin)

Publication number: 20060142300

Abstract: The present invention relates to the novel anhydrous crystalline forms I and II of 1-cyclopropyl-6-fluoro-8-methoxy-7-(3-methyl-1-piperazinyl)4-oxo-1, 4-dihydroquinoline-3-carboxylic acid (gatifloxacin) which can be depicted as Formula (I). The present invention also relates to methods of making the anhydrous Forms I and II of Gatifloxacin, use of the forms and methods for preparing them.

Type: Application

Filed: April 7, 2003

Publication date: June 29, 2006

Inventors: Manne Reddy, Chakilam Raju, Vetukuri Venkata Naga Kali Raju, Ningam Reddy, Rapolu Kumar

Anhydrous crystalline forms of I and II of 1-cyclopropyl-6-fluoro-8-methoxy-7-(3-methyl-1- piperazinyl) 4-oxo-1, 4-dihydroquinoline-3-carboxylic acid (gatifloxacin)