Patents by Inventor Alton Hudnall

Alton Hudnall 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).

  • Amphibious people powered vehicle
    Patent number: D256445
    Type: Grant
    Filed: November 13, 1978
    Date of Patent: August 19, 1980
    Inventor: Alton Hudnall
  • Amphibious flying machine
    Patent number: D306008
    Type: Grant
    Filed: April 6, 1987
    Date of Patent: February 13, 1990
    Inventor: Alton Hudnall
  • Guitar
    Patent number: D371155
    Type: Grant
    Filed: May 16, 1994
    Date of Patent: June 25, 1996
    Inventor: Alton Hudnall
  • Dolly trike
    Patent number: D430071
    Type: Grant
    Filed: March 4, 1999
    Date of Patent: August 29, 2000
    Inventor: Alton Hudnall