Patents by Inventor Christopher J. Thom

Christopher J. Thom 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).

  • Skeletal isomerization of n-pentenes to isopentene on pretreated zeolites
    Patent number: 5463160
    Abstract: The selective conversion by skeletal isomerization over steam pretreated ferrierite zeolite-based catalysts having pore sizes of at least about 4.2 Angstroms and a pore structure characterized by intersecting 10-MR and 8-MR channels. The steam pretreated ferrierite zeolite-based catalysts have sufficient acidity to catalyze the skeletal isomerization of normal olefins. The catalysts can be used to produce isoolefins for reaction with alcohols in integrated processes to produce tertiary amyl methyl ethers such as TAME.
    Type: Grant
    Filed: August 30, 1993
    Date of Patent: October 31, 1995
    Assignee: Texaco Inc.
    Inventors: Erven J. Kuhlmann, James R. Pascoe, Christopher J. Thom