Patents by Inventor Samuel Asen

Samuel Asen 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).

  • Stable foods and beverages containing the anthocyanin, peonidin 3-(dicaffeylsophoroside)-5-glucoside
    Patent number: 4172902
    Abstract: A colorant from a natural source which produces a wide range of stable colors in food and beverages which have a pH range of 2.0 to about 8.0 is added to foods and beverages in effective proportion. The colorant is the anthocyanin from `Heavenly Blue` Morning Glory, peonidin 3-(dicaffeylsophoroside)-5-glucoside.
    Type: Grant
    Filed: May 26, 1978
    Date of Patent: October 30, 1979
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Samuel Asen, Robert N. Stewart, Karl H. Norris