Patents by Inventor Carl L. Griffis

Carl L. Griffis 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 for reducing or eliminating microorganisms in substances by electric stimulation
    Patent number: 5282940
    Abstract: A method for the reduction or elimination of microbes in liquid or food products whereby the passage of a waveform, such as a DC square-wave, of a specific amplitude, duty cycle and current through the liquid or food product for a specific time period, allows for the elimination of microbes such as Salmonella Typhimurium from a variety of substances, including water, milk and solid food products.
    Type: Grant
    Filed: July 20, 1992
    Date of Patent: February 1, 1994
    Assignee: The Board of Trustees of the University of Arkansas
    Inventors: Carl L. Griffis, Michael F. Slavik, Phillip V. Engler, Yanbin Li