Patents by Inventor William W. Kaleda

William W. Kaleda 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 decaffeination with caffeic acid
    Patent number: 4767634
    Abstract: A method of decaffeination wherein a caffeine-containing coffee extract solution is contacted with caffeic acid in the presence of water. The caffeine and the caffeic acid form an insoluble caffeine/caffeic acid complex wherein the complex is separated from the coffee extract solution.
    Type: Grant
    Filed: June 3, 1986
    Date of Patent: August 30, 1988
    Assignee: General Foods Corporation
    Inventors: William W. Kaleda, Fouad Z. Saleeb, Bary L. Zeller
  • Coffee extract decaffeination method
    Patent number: 4521438
    Abstract: A method of decaffeinating caffeine-containing liquids and particularly aqueous coffee extracts is disclosed. Caffeic acid is added to a caffeine-containing aqueous coffee extract so as to form an insoluble, colloidal caffeic acid/caffeine complex. Crystals of the insoluble caffeic acid/caffeine complex are then grown and subsequently separated from the aqueous decaffeinated coffee extract. The coffee extracts intended for use herein include both roasted and green coffee extracts.
    Type: Grant
    Filed: September 29, 1983
    Date of Patent: June 4, 1985
    Assignee: General Foods Corporation
    Inventors: Bary L. Zeller, William W. Kaleda, Fouad Z. Saleeb