Patents by Inventor Ajay Shankar Singh

Ajay Shankar Singh 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).

  • Sorafenib dimethyl sulphoxide solvate
    Patent number: 8618305
    Abstract: The present invention provides dimethyl sulphoxide solvate of 4-(4-{3-[4-chloro-3 -(trifluoromethyl)phenyl]ureido}phenoxy)-N2-methylpyridine-2-carboxamide, process for its preparation, pharmaceutical composition comprising it and its use for the treatment of cancer. The present invention also provides a novel HPLC method for the identification, quantification and isolation of related substances of sorafenib.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: December 31, 2013
    Assignee: Ranbaxy Laboratories Limited
    Inventors: Jagdev Singh Jaryal, Swargam Sathyanarayana, Rajesh Kumar Thaper, Mohan Prasad, Sachin Deorao Zade, Ajay Shankar Singh