Patents by Inventor Ralph L. Perez

Ralph L. Perez 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).

  • Processes for preparing TNAZ
    Patent number: 5824806
    Abstract: TNAZ can be prepared directly from N-tertiarybutyl-3,3-dinitroazetidine compounds. The compounds may be in the form of the tertiary amine or the quaternary amine. The reaction is in the presence of acetic anhydride and nitrate ions. It gives high yields and uses mild conditions.
    Type: Grant
    Filed: May 15, 1995
    Date of Patent: October 20, 1998
    Assignee: The United States of America as represented by the The Secretary of the Army
    Inventors: Daniel Stec, III, Ralph L. Perez, Paritosh R. Dave, Thomas G. Archibald