Patents by Inventor Pramasivan RAJASINGH

Pramasivan RAJASINGH 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).

  • SELECTIVE BROMINATION OF PERYLENE DIIMIDES AND DERIVATIVES THEREOF UNDER MILD CONDITIONS
    Publication number: 20130231481
    Abstract: The present invention is directed to novel process for the preparation of regioselective perylenediimides derivatives, specifically mono and dibrominated derivatives.
    Type: Application
    Filed: February 20, 2013
    Publication date: September 5, 2013
    Applicant: YED RESEARCH AND DEVELOPMENT CO.LTD
    Inventors: Boris RYBTCHINSKI, Pramasivan RAJASINGH, Elijah Shirman