Patents by Inventor Leopard S. Knowlden

Leopard S. Knowlden 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 of manufacturing a gas generating material
    Patent number: 5407608
    Abstract: A process for manufacturing a gas generating material includes preparing a hot solution of a metal azide, preferably sodium azide, with metal oxide particles, preferably iron oxide particles, suspended in the solution. The metal azide is precipitated from the solution. The step of precipitating the metal azide from the solution includes cooling the hot solution to decrease the solubility of the metal azide in the solute. The metal azide precipitate and the iron oxide particles are then separated from the liquid.
    Type: Grant
    Filed: January 18, 1994
    Date of Patent: April 18, 1995
    Assignee: TRW Vehicle Safety Systems Inc.
    Inventors: Leopard S. Knowlden, George W. Goetz