Patents by Inventor Yvon P. Carignan

Yvon P. Carignan 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).

  • Azidodeoxycellulose nitrate
    Patent number: H430
    Abstract: A process of making azidodeoxycellulose nitrate in yields as high as 90 pent. The process initially involves the conversion of cellulose to the mesylate or tosylate derivative. This is followed by reacting the above cellulose derivative with a metallic azide to produce azidodeoxycellulose. Thereafter, the azidodeoxycellulose is nitrated thereby producing azidodeoxycellulose nitrate which is a propellant.
    Type: Grant
    Filed: March 2, 1987
    Date of Patent: February 2, 1988
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Yvon P. Carignan, Everett E. Gilbert