Patents Represented by Attorney R. L. Crisona

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  • Decaffeination of a coffee extract
    Patent number: 4446162
    Abstract: A process for decaffeinating and aqueous coffee extract involves contacting the extract with a fatty solvent while concurrently vacuum distilling a portion of the water initially present from the aqueous coffee extract and subsequently separating the decaffeinated coffee extract and the caffeine-containing fatty solvent.
    Type: Grant
    Filed: March 31, 1982
    Date of Patent: May 1, 1984
    Assignee: General Foods Corporation
    Inventors: Peter D. Malizia, Jerome F. Trumbetas
  • Recovery of caffeine from caffeine adsorbents
    Patent number: 4443601
    Abstract: Caffeine adsorbed on caffeine adsorbents is recovered by contacting the carbon with a solvent, preferably an aqueous solution of ethylene carbonate or propylene carbonate. The caffeine adsorbent is contacted with the solvent for a period time sufficient to remove at least a portion of the caffeine adsorbed thereon and then separated from caffeine-containing solvent. The caffeine may be recovered from the solvent by precipitation.
    Type: Grant
    Filed: September 20, 1982
    Date of Patent: April 17, 1984
    Assignee: General Foods Corporation
    Inventors: Mark H. Karmiol, Gary L. Hickernell, Bertrand J. Hall