Patents by Inventor Ravindra D. Kulkarni

Ravindra D. Kulkarni 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).

  • High efficiency antifoam compositions and process for reducing foaming
    Patent number: 4395352
    Abstract: Antifoam compositions containing high viscosity polydiorganosiloxane oils, finely divided hydrophobic solids, and siloxanepolyoxyalkylene block copolymer surfactants, which can be used per se or in the form of emulsions.
    Type: Grant
    Filed: January 14, 1980
    Date of Patent: July 26, 1983
    Assignee: Union Carbide Corporation
    Inventors: Ravindra D. Kulkarni, Bernard Kanner, Errol D. Goddard
  • Silanated calcium carbonate fillers
    Patent number: 4374178
    Abstract: Calcium carbonate is rendered receptive to silanation by pretreatment with soluble sodium silicate.
    Type: Grant
    Filed: December 29, 1980
    Date of Patent: February 15, 1983
    Assignee: Union Carbide Corporation
    Inventors: Ravindra D. Kulkarni, Errol D. Goodard