Patents by Inventor Ruth A. Workman

Ruth A. Workman 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).

  • Coffee substitute
    Patent number: 3966995
    Abstract: The outer zone or cortex of carrot root, separated from the central zone of wood and pith, is subdivided and roasted, providing a material useful for brewing a beverage simulating coffee and devoid, even when brewed, of identifiable carrot odor.
    Type: Grant
    Filed: August 28, 1975
    Date of Patent: June 29, 1976
    Inventor: Ruth A. Workman