Patents by Inventor Ralph L. Ditto

Ralph L. Ditto 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).

  • Toy glider
    Patent number: D242866
    Type: Grant
    Filed: April 11, 1975
    Date of Patent: December 28, 1976
    Inventor: Ralph L. Ditto
  • Toy glider
    Patent number: D328619
    Type: Grant
    Filed: April 2, 1991
    Date of Patent: August 11, 1992
    Inventor: Ralph L. Ditto