Patents by Inventor John D. Miceli

John D. Miceli 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).

  • Dual catalyst sequential method for production of sorbitol from hydrolyzed starch solution
    Patent number: 4694113
    Abstract: A process for production of sorbitol from 50-98.5 DE hydrolyzed starch solution by hydrogenation over a nickel catalyst at a pH of from 3.0 to 7.0, 120.degree. to 160.degree. C. and 500 to 2000 psig (35 to 140 Bars) until the reducing sugar value is below 5 percent; removal of nickel catalyst, acidification to pH 1.0 to 2.5 and hydrogenation of the acidified solution over a ruthenium catalyst, 100.degree. to 180.degree. C. and 500 to 2000 psig, until hydrogen uptake is substantially complete, and removal of the ruthenium catalyst.
    Type: Grant
    Filed: June 4, 1986
    Date of Patent: September 15, 1987
    Assignee: Pfizer Inc.
    Inventors: George J. Gauthier, John D. Miceli