Patents by Inventor Todd E. Kindorf

Todd E. Kindorf 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 production of 2,3,5,6-tetrachloropyridine and 2,3,6-trichloropyridine
    Patent number: 4785112
    Abstract: Vapor phase chlorination of 2,6-dichloropyridine produces 2,3,6-trichloropyridine selectively over isomeric 2,4,6-trichloropyridine and of 2,3,6-trichloropyridine produces 2,3,5,6-tetrachloropyrindine in high selectivity over isomeric 2,3,4,6-tetrachloropyridine at temperatures of 300.degree. C. to 450.degree. C. The products are intermediates for insecticides and herbicides.
    Type: Grant
    Filed: January 19, 1988
    Date of Patent: November 15, 1988
    Assignee: The Dow Chemical Company
    Inventors: Michael A. DesJardin, Todd E. Kindorf