Patents by Inventor Ramachandra Ranganathan

Ramachandra Ranganathan 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).

  • Non-ionic polyiodo sugar substituted anilines
    Patent number: 4243653
    Abstract: Non-ionic polyiodo saccharidic ether substituted anilines are provided as contrast media, the ether being non-glycosidyl. The compounds have excellent physical properties in having acceptable water solubility or capable of stable suspension, relatively low osmotic pressure, good thermal stability, so as to be heat sterilizable, and a high iodine proportion. The compounds can be prepared from polynitroaromatics by substitution and reduction.
    Type: Grant
    Filed: April 27, 1979
    Date of Patent: January 6, 1981
    Assignee: The Regents of the University of California
    Inventors: Milos Sovak, Ramachandra Ranganathan