Patents by Inventor Lew Huntsmann

Lew Huntsmann 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).

  • Extraction and recovery of nitramines from propellants, explosives, and pyrotechnics
    Patent number: 6414143
    Abstract: Nitramine oxidizers are recovered from propellant, explosive, and pyrotechnic materials with a concentrated mineral acid bath, preferably comprising 70 to 90 wt. % nitric acid, that serves to dissolve the nitramine oxidizers into solution and permit filtration of the binder therefrom. The recovery process is conducted in the absence of organic solvents.
    Type: Grant
    Filed: February 17, 2000
    Date of Patent: July 2, 2002
    Assignee: Alliant Techsystems Inc.
    Inventors: Louis Cannizzo, Lew Huntsmann