Patents by Inventor Charles Summer

Charles Summer 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).

  • Cyclohexane oxidation
    Patent number: 6008415
    Abstract: Cyclohexane is catalytically oxidized to produce cyclohexanol and cyclohexanone and precursors of these products. The oxidation is carried out in a liquid oxidation reactor at high oxygen concentrations (greater than 30% and preferably greater than 90% oxygen concentration) and at relatively low temperatures (less than 160.degree. C.). The use of the liquid oxidation reactor permits the use of these high oxygen concentrations without forming dangerously high levels of oxygen in the overhead gas phase. The result is an increased yield and selectivity of the desired products.
    Type: Grant
    Filed: July 10, 1998
    Date of Patent: December 28, 1999
    Assignee: ABB Lummus Global Inc.
    Inventors: Marvin I. Greene, Charles Summer, Robert J. Gartside