Patents by Inventor David E. Chavez

David E. Chavez 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).

  • Preparation of 3,3?-azobis(6-amino-1,2,4,5-tetrazine)
    Patent number: 6342589
    Abstract: The compound of the structure where a, b, c, d and e are 0 or 1 and a+b+c+d+e is from 0 to 5 is disclosed together with the species 3,3′-azobis(6-amino-1,2,4,5-tetrazine) and a process of preparing such compounds.
    Type: Grant
    Filed: March 22, 2001
    Date of Patent: January 29, 2002
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Michael A. Hiskey, David E. Chavez, Darren Naud
  • Low-smoke pyrotechnic compositions
    Patent number: 6312537
    Abstract: A low-smoke producing pyrotechnic composition including a high-nitrogen content, low-carbon content energetic material, an oxidant and a colorant is disclosed together with the use of selected metal salts of a high-nitrogen content, low-carbon content energetic material as the colorant.
    Type: Grant
    Filed: July 13, 2000
    Date of Patent: November 6, 2001
    Assignee: The Regents of the University of California
    Inventors: Michael A. Hiskey, David E. Chavez, Darren L. Naud
  • Low-smoke pyrotechnic compositions
    Patent number: 6214139
    Abstract: A low-smoke producing pyrotechnic composition including a high-nitrogen content, low-carbon content energetic material, an oxidant and a colorant is disclosed together with the use of selected metal salts of a high-nitrogen content, low-carbon content energetic material as the colorant.
    Type: Grant
    Filed: April 20, 1999
    Date of Patent: April 10, 2001
    Assignee: The Regents of the University of California
    Inventors: Michael A. Hiskey, David E. Chavez, Darren L. Naud
  • High-nitrogen energetic material based pyrotechnic compositions
    Patent number: 5917146
    Abstract: A low-smoke producing pyrotechnic composition including a high-nitrogen content, low-carbon content energetic material; an oxidizing agent; and, a colorant is disclosed.
    Type: Grant
    Filed: May 29, 1997
    Date of Patent: June 29, 1999
    Assignee: The Regents of the University of California
    Inventors: Michael A. Hiskey, David E. Chavez