Patents by Inventor Donald G. Ott

Donald G. Ott 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).

  • Synthesis of 3,6-diamino-1,2,4,5-tetrazine
    Patent number: 5281706
    Abstract: A method of making 3,6-diamino-1,2,4,5-tetrazine.
    Type: Grant
    Filed: November 24, 1992
    Date of Patent: January 25, 1994
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Michael D. Coburn, Donald G. Ott
  • ADMPT and its synthesis
    Patent number: 5274091
    Abstract: 3-Amino-6-(3,5-dimethylpyrazol-1-yl)-1,2,4,5-tetrazine (ADMPT) and a method of making it.
    Type: Grant
    Filed: November 24, 1992
    Date of Patent: December 28, 1993
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Michael D. Coburn, Donald G. Ott
  • Preparation of 1,3,5-triamino-2,4,6-trinitrobenzene from 3,5-dichloroanisole
    Patent number: 4997987
    Abstract: Preparation of 1,3,5-triamino-2,4,6-trinitrobenzene (TATB) from 3,5-dichloroanisole. Nitration of 3,5-dichloroanisole under relatively mild conditions gave 3,5-dichloro-2,4,6-trinitroanisole in high yield and purity. Ammonolysis of this latter compound gave the desired TATB. Another route to TATB was through the treatment of the 3,5-dichloro-2,4,6-trinitroanisole with thionyl chloride and dimethylformamide to yield 1,3,5-trichloro-2,4,6-trinitrobenzene. Ammonolysis of this product produced TATB.
    Type: Grant
    Filed: June 8, 1990
    Date of Patent: March 5, 1991
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Donald G. Ott, Theodore M. Benziger
  • Preparation of 1,3,5-triamino-2,4,6-trinitrobenzene from 3,5-dichloranisole
    Patent number: 4952733
    Abstract: Preparation of 1,3,5-triamino-2,4,6-trinitrobenzene (TATB) from 3,5-dichloroanisole. Nitration of 3,5-dichloroanisole under relatively mild conditions gave 3,5-dichloro-2,4,6-trinitroanisole in high yield and purity. Ammonolysis of this latter compound gave the desired TATB. Another route to TATB was through the treatment of the 3,5-dichloro-2,4,6-trinitroanisole with thionyl chloride and dimethylformamide to yield 1,3,5-trichloro-2,4,6-trinitrobenzene. Ammonolysis of this product produced TATB.
    Type: Grant
    Filed: December 21, 1988
    Date of Patent: August 28, 1990
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Donald G. Ott, Theodore M. Benziger
  • Production of the ammonium salt of 3,5-dinitro-1,2,4-triazole by solvent extraction
    Patent number: 4236014
    Abstract: The ammonium salt of 3,5-dinitro-1,2,4-triazole has utility as a chemical explosive. In accordance with the present invention, it may readily be produced by solvent extraction using high-molecular weight, water-insoluble amines followed by amination with anhydrous ammonia gas. The aqueous reaction mixture produced in the synthesis of the parent compound, 3,5-dinitro-1,2,4-triazole, is quite suitable--and indeed is preferred--for use as the feed material in the process of the invention.
    Type: Grant
    Filed: November 7, 1979
    Date of Patent: November 25, 1980
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Kien Y. Lee, Donald G. Ott