Patents by Inventor George L. Clisura

George L. Clisura 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).

  • Separate recovery of caffeine and coffee solids adsorbed on activated carbon
    Patent number: 4548827
    Abstract: The present invention relates to a method of separately recovering caffeine and non-caffeine solids adsorbed on activated carbon. Activated carbon containing the adsorbed solids is contacted with an aqueous basic solution to elute the non-caffeine coffee solids. The two components are separated. The activated carbon is subsequently contacted with a concentrated aqueous acidic solution to elute the relatively pure caffeine. The two components are separated. The non-caffeine solids in the basic solution may be re-adsorbed onto the activated carbon. Essentially pure caffeine may be refined from the aqueous acidic solution.
    Type: Grant
    Filed: March 30, 1982
    Date of Patent: October 22, 1985
    Assignee: General Foods Corporation
    Inventors: Saul N. Katz, George E. Proscia, George L. Clisura