Patents by Inventor James S. Grier

James S. Grier 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).

  • Process for the manufacture of 2,6-dichloro-4-nitroaniline
    Patent number: 5068443
    Abstract: The present invention is directed to a process for the chlorination of nitroaniline compounds with Cl.sub.2 in a reaction medium containing acetic acid. A process for the chlorination of nitroaniline with Cl.sub.2 in a reaction medium which has been recycled from a prior chlorination is also described.
    Type: Grant
    Filed: June 1, 1990
    Date of Patent: November 26, 1991
    Assignee: NorAm Chemical Company
    Inventors: Stephen R. Smythe, Martin G. Cole, James S. Grier