Patents by Inventor Herbert K. Michael

Herbert K. Michael 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).

  • Chlorinating waste streams to recover cyanopyridine contained therein
    Patent number: 4814456
    Abstract: Cyanopyridines are recovered from waste streams containing the same using a low temperature liquid phase chlorination step followed by filtration. This process increases recovery of unreacted cyanopyridine and significantly reduces waste stream volume.
    Type: Grant
    Filed: October 13, 1987
    Date of Patent: March 21, 1989
    Assignee: The Dow Chemical Company
    Inventor: Herbert K. Michael