Patents by Inventor John D. Tice

John D. Tice 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).

  • Isomerization of the hydrogenated norbornadiene endo-endo hexacyclic dimer
    Patent number: 4225735
    Abstract: Isomerization of a liquid, saturated endo-endo norbornadiene hexacyclic dimer involves the use of a catalytic amount of acidic alumina or a montmorillonite. The resulting isomeric product is solid, at ambient temperature, and can be used as a missile fuel.
    Type: Grant
    Filed: January 29, 1979
    Date of Patent: September 30, 1980
    Assignee: Suntech, Inc.
    Inventors: Lewis W. Hall, Jr., John D. Tice, Harry K. Myers, Jr., Abraham Schneider
  • Urea adduction process for refrigeration oil manufacture
    Patent number: 4070269
    Abstract: In the process of manufacturing a refrigeration oil where an oil stock is dewaxed by forming a complex with urea in the presence of an activator, the improvement of adding hot vacuum gas oil to the separated urea complex whereby the activator is flashed off and is recycled for reuse and the slurry of the urea complex in the gas oil is treated with hot water to break the adduct and separate a water-urea mixture and oil and paraffin. The improved method enables accurate and uniform temperature control and degradation of urea is suppressed.
    Type: Grant
    Filed: October 12, 1976
    Date of Patent: January 24, 1978
    Assignee: Suntech, Inc.
    Inventors: Ronald W. Reynolds, John D. Tice, John S. Nutter