Patents by Inventor Puppala Ravikumar

Puppala Ravikumar 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).

  • Process for the Preparation of Telmisartan
    Publication number: 20080015359
    Abstract: An improved process for the preparation of telmisartan, or a pharmaceutically acceptable salt thereof, comprises subjecting 1H-Benzimidazole-2-n-propyl-4-methyl-6-(1?-methyl benzimidazole-2+yl)] of formula (II), and methyl-4-(bromomethyl)biphenyl-2-carboxylate of formula (III) to condensation and hydrolysis in a single step:
    Type: Application
    Filed: May 10, 2005
    Publication date: January 17, 2008
    Inventors: Rajendra Kankan, Dharmaraj Rao, Pathi Srinivas, Puppala Ravikumar
  • Crystalline forms of duloxetine free base
    Publication number: 20070167513
    Abstract: The present invention is concerned with duloxetine free base in crystalline form, and also novel polymorphic forms thereof
    Type: Application
    Filed: May 11, 2005
    Publication date: July 19, 2007
    Inventors: Rajendra Kankan, Dharmaraj Rao, Pathi Srinivas, Puppala Ravikumar