Patents by Inventor Fred E. Warren

Fred E. Warren 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).

  • Diagnostic device
    Patent number: 4099519
    Abstract: Diagnostic and/or therapeutic tool with spaced electrode probe assemblies and piezoelectric element generating electric pulse.
    Type: Grant
    Filed: January 14, 1977
    Date of Patent: July 11, 1978
    Inventor: Fred E. Warren