Patents by Inventor Louisa C. Ling

Louisa C. Ling 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).

  • Cooked tomato flavor composition
    Patent number: 5064673
    Abstract: A composition containing the compounds dimethyl sulfide, beta-damascenone, 3-methylbutanal, and 3-methylbutyric acid in particular proportions is used to impart or enhance the cooked tomato flavor of food products. In a preferred embodiment, the composition also contains 1-nitro-2-phenylethane, eugenol, and methional.
    Type: Grant
    Filed: December 19, 1990
    Date of Patent: November 12, 1991
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Ronald G. Buttery, Roy Teranishi, Louisa C. Ling, Jean G. Turnbaugh
  • 2-Acetyl-1-pyrroline and its use for flavoring foods
    Patent number: 4522838
    Abstract: The compound, 2-acetyl-1-pyrroline and its use in flavoring foods, particularly in imparting a "scented" rice flavor to foods, are disclosed.
    Type: Grant
    Filed: June 1, 1983
    Date of Patent: June 11, 1985
    Assignees: The United States of America as represented by the Secretary of Agriculture, International Rice Research Institute, Republic of the Philippines
    Inventors: Ronald G. Buttery, Louisa C. Ling, Bienvenido O. Juliano