Patents by Inventor Trevor E. Gray

Trevor E. Gray 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).

  • Chlorination of .beta.-methylpyridine compounds
    Patent number: 4672125
    Abstract: A method is disclosed for preparing a chlorinated .beta.-methylpyridine by chlorinating a .beta.-methylpyridine compound with PCl.sub.5 in the presence of phenylphosphonic dichloride.
    Type: Grant
    Filed: December 13, 1985
    Date of Patent: June 9, 1987
    Assignee: The Dow Chemical Company
    Inventors: Trevor E. Gray, Charles B. Grant, Thomas J. Dietsche