Patents by Inventor Darrell Burchfield

Darrell Burchfield 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: D290449
    Type: Grant
    Filed: July 26, 1985
    Date of Patent: June 23, 1987
    Inventors: George W. Hughes, Terry L. Cook, Darrell Burchfield