Patents by Inventor Ra ju Sirisilla

Ra ju Sirisilla 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).

  • Polymorphic forms of an antidiabetic agent: process for their preparation and a pharmaceutical composition containing them
    Patent number: 6528507
    Abstract: This invention relates to novel polymorphic/pseudopolymorphic forms of arginine salt of 3-[4-[2-(phenoxazin-10-yl)ethoxy]phenyl]-2-ethoxypropanoic acid, having the formula I shown below. The invention also relates to a pharmaceutical composition comprising the novel polymorphic form or their mixture and a pharmaceutically acceptable carrier. The polymorphic forms of the present invention are more active, as antidiabetic and hypolipidemic agent, than the novel 3-[4-[2-(phenoxazin-10-yl)ethoxy]phenyl]-2-ethoxypropanoic acid.
    Type: Grant
    Filed: April 17, 2000
    Date of Patent: March 4, 2003
    Assignee: Dr. Reddy's Laboratories Limited
    Inventors: Om Reddy Gaddam, Ra jender Kumar Potlapally, Ra ju Sirisilla, Vyas Krishnamurthi, Sreenivasa Rao Dharmaraja, Ramabhadra Sarma Mamillapalli