Patents by Inventor Øyvind Hammer Johansen

Øyvind Hammer Johansen 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).

  • Pressable plastic-bound explosive composition
    Patent number: 7857922
    Abstract: The present invention relates to pressable explosive compositions with enhanced sensitivity characteristics and processability. The explosive compositions are based on crystalline explosive crystals of 1,3,5-trinitro-1,3,5-triazacyclohexane (RDX) Type I alone or in combination with a smaller percentage of 1,3,5-tetranitro-1,3,5,7-tetrazacyclooctane (HMX) where the crystals are coated with a binder system consisting of a polyacrylic elastomer to which a plasticizer is added. These explosive compositions are produced in a so-called water-slurry process where the explosive crystals are washed in water whereupon a solution of the binder system is added. After the admixture the solvent is distilled off and the coated product is isolated by filtering.
    Type: Grant
    Filed: November 21, 2003
    Date of Patent: December 28, 2010
    Assignee: Dyno Nobel ASA
    Inventors: Kjell-Tore Smith, Øyvind Hammer Johansen, Erlend Skjold, Richard Gjersoe
  • Process of preparing a high-energy softening agent
    Patent number: 6262301
    Abstract: The present invention relates to a continuous process of preparing N-alkyl-nitratoethylamines and a production plant for carrying out a continuous process of preparing such N-alkyl-nitratoethylamines.
    Type: Grant
    Filed: March 13, 2000
    Date of Patent: July 17, 2001
    Assignee: Dyno Asa Forsvarsprodukter
    Inventors: Erlend Skjold, Øyvind Hammer Johansen, Richard Gjersøe, Terje Halvorsen, Alf Berg, Trine Granby, Mona Christensen