Patents by Inventor Harold G. Jache

Harold G. Jache 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).

  • Yellow metal alloy
    Patent number: 4370164
    Abstract: An alloy of about 4 to 10% gold, silver, copper, palladium, indium, zinc and boron producing an alloy with a pleasing yellow color. Tarnish resistance, wear resistance and heft are similar to 10 karat gold with a lesser cost due to the low gold content.
    Type: Grant
    Filed: January 2, 1981
    Date of Patent: January 25, 1983
    Assignee: Jostens Inc.
    Inventors: William R. Harris, Harold G. Jache