Patents by Inventor Ralph W. Flinchbaugh

Ralph W. Flinchbaugh 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).

  • Finger-contoured ring
    Patent number: D300731
    Type: Grant
    Filed: April 7, 1986
    Date of Patent: April 18, 1989
    Inventor: Ralph W. Flinchbaugh
  • Finger-contoured rings
    Patent number: D305310
    Type: Grant
    Filed: February 1, 1989
    Date of Patent: January 2, 1990
    Inventor: Ralph W. Flinchbaugh