Patents by Inventor Keith A. Field

Keith A. Field 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).

  • Movement measuring device
    Patent number: D502415
    Type: Grant
    Filed: November 7, 2003
    Date of Patent: March 1, 2005
    Assignee: Functional Movement.com
    Inventors: Samuel L. Burton, Earl G. Cook, Keith A. Fields
  • Fender step for trailer
    Patent number: D595630
    Type: Grant
    Filed: November 16, 2007
    Date of Patent: July 7, 2009
    Assignee: Load Rite Trailers, Inc.
    Inventors: Gary M. McPherson, Keith A. Field