Patents by Inventor Stephen M. Cleck

Stephen M. Cleck 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).

  • Catalyst for the upgrading of aromatic liquids
    Patent number: 4357263
    Abstract: Desulfurization, denitrogenation, deoxygenation and CCR reduction of highly aromatic petroleum and coal derived liquids are conducted with hydrogen and with a refractory base catalyst incorporating at least one Group VIA metal and at least one Group VIII metal. The catalyst has a surface area of between about 100 and 300 m.sup.2 /g and a total pore volume of between about 0.3 and 1.
    Type: Grant
    Filed: December 16, 1980
    Date of Patent: November 2, 1982
    Assignee: Mobil Oil Corporation
    Inventors: Roland H. Heck, Stephen M. Cleck, Stuart S. Shih, Robert C. Wilson