Patents by Inventor Ronald E. Fritz

Ronald E. Fritz 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).

  • Radiofrequency wave treatment of a material using a selected sequence of modes
    Patent number: 5008506
    Abstract: A radiofrequency wave apparatus including an applicator (112, 120) which provides multiple, sequenced processing modes for use in a method for heating a material is described. The modes in the applicator are selected to suit each stage of the processing of a material (B). The apparatus can include multiple circuits (11, 12 and 13) which couple the radiofrequency waves to the applicator using probes (111a, 121a and 122a) in the method. The result is the optimum processing of the material.
    Type: Grant
    Filed: October 30, 1989
    Date of Patent: April 16, 1991
    Assignee: Board of Trustees operating Michigan State University
    Inventors: Jes Asmussen, Ronald E. Fritz