Patents by Inventor J. P. Michel Couture

J. P. Michel Couture 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).

  • Prill coating
    Patent number: 5454889
    Abstract: The present invention is directed to intimately combining petroleum products with ammonium nitrate prills forming a coating thereon, whereby said coating is tackified and free flowing.
    Type: Grant
    Filed: August 19, 1993
    Date of Patent: October 3, 1995
    Assignees: ICI Canada Inc., ICI Explosives USA Inc.
    Inventors: Melvin A. McNicol, Fortunato Villamagna, J. P. Michel Couture