Patents by Inventor John W. Cry

John W. Cry 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).

  • Method and apparatus for selectively detecting one of two immiscible liquids in the presence of the other liquid
    Patent number: 4899047
    Abstract: Oil is detected in the presence of water by placing a translucent, porous body of hydrophobic material in contact with the oil and water and detecting the amount by which light incident on the body is attenuated on propagation through the body.
    Type: Grant
    Filed: June 24, 1988
    Date of Patent: February 6, 1990
    Assignee: Battelle Memorial Institute
    Inventors: John W. Cry, Randy R. Kirkham, John F. McBride, Carver S. Simmons, Glendon W. Gee