Patents by Inventor Curtis P. Hedman

Curtis P. Hedman 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).

  • Dual class amphibious target discriminator
    Patent number: 4081785
    Abstract: A dual class amphibious target discriminator distinguishes between waterborne carriers and bottom traversing fording vehicles. The distinction is accomplished by examining the seismic signal produced by a candidate target for significant characteristics unique to the specific targets.
    Type: Grant
    Filed: February 13, 1974
    Date of Patent: March 28, 1978
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: James C. Ravis, Curtis P. Hedman