Patents by Inventor Ravindra B. Upasanti

Ravindra B. Upasanti 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).

  • Polysubstituted fullerenes and their preparation
    Patent number: 5294732
    Abstract: The present invention is directed to polysubstituted fullerene moieties having a plurality of substituents thereon wherein the substituents are selected from the group consisting of hydroxy in combination with hydroxy, amino, oxide, nitro, organocarboxy, amide and mixtures thereof.
    Type: Grant
    Filed: December 23, 1992
    Date of Patent: March 15, 1994
    Assignee: Exxon Research & Engineering Co.
    Inventors: Long Y. Chiang, Ravindra B. Upasanti, John W. Swirczewski