Patents by Inventor Fred W. Nelson

Fred W. Nelson 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).

  • Patent number: 3952748
    Abstract: An electrosurgical system, having a solid state generator for providing a cut mode electrosurgical current waveform of RF electric energy having a first voltage amplitude to an active electrode terminal, is adapted by the addition of an apparatus for alternatively providing a fulguration mode current waveform having a second higher voltage amplitude from the generator to the active electrode terminal.
    Type: Grant
    Filed: July 18, 1974
    Date of Patent: April 27, 1976
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Paul L. Kaliher, Fred W. Nelson, Bryan K. Roos