Patents by Inventor Ronald P. Mitchell

Ronald P. Mitchell 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: D384390
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: September 30, 1997
    Inventors: Edward J. Grabenhorst, Ronald P. Mitchell