Patents by Inventor Gary W. Hartley

Gary W. Hartley 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).

  • Preparation of .alpha.-tocopherol
    Patent number: 5504220
    Abstract: Disclosed is an improved process for the preparation of alpha-tocopherol by the hydroxymethylation followed by the hydrogenation of non-.alpha.-tocopherols comprising .beta.-, .gamma.-, and .delta.-tocopherols using a particular palladium on alumina catalyst wherein (1) the dispersion and depth of deposition of the palladium metal are within certain ranges, and (2) the alumina is of a particular crystalline phase.
    Type: Grant
    Filed: August 17, 1995
    Date of Patent: April 2, 1996
    Assignee: Eastman Chemical Company
    Inventors: Yeong J. Kuo, Gary W. Hartley, Bruce L. Gustafson, David J. Allen