Patents by Inventor Svatopluk Zeman

Svatopluk Zeman 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).

  • Method of preparation of epsilon-2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane with reduced impact sensitivity
    Patent number: 9227981
    Abstract: The present invention relates to a method of preparation of ?-2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane with reduced impact sensitivity by precipitation of a solution of 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane in a solvent by an antisolvent, wherein phosphorus(V) oxide is added as a recrystallization promoter to the solution of 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane in the solvent, the obtained mixture is stirred and filtered, and the filtrate is subsequently precipitated by the addition of the antisolvent.
    Type: Grant
    Filed: October 1, 2012
    Date of Patent: January 5, 2016
    Assignee: UNIVERSITY OF PARDUBICE
    Inventors: Ahmed Ikhlas Mohamed Elbeih, Adela Husarova, Svatopluk Zeman
  • Method of Preparation of epsilon-2,4,6,8,10,12-Hexanitro-2,4,6,8,10,12-Hexaazaisowurtzitane with Reduced Impact Sensitivity
    Publication number: 20140235853
    Abstract: The present invention relates to a method of preparation of ?-2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane with reduced impact sensitivity by precipitation of a solution of 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane in a solvent by an antisolvent, wherein phosphorus(V) oxide is added as a recrystallization promoter to the solution of 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane in the solvent, the obtained mixture is stirred and filtered, and the filtrate is subsequently precipitated by the addition of the antisolvent.
    Type: Application
    Filed: October 1, 2012
    Publication date: August 21, 2014
    Applicant: UNIVERSITY OF PARDUBICE
    Inventors: Ahmed Ikhlas Mohamed Elbeih, Adela Husarova, Svatopluk Zeman