Patents by Inventor Peter Schween

Peter Schween 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).

  • Process for the treatment of combustible, solid radioactive wastes
    Patent number: 4349465
    Abstract: In a process for the wet combustion of solid, combustible, radioactive wastes by reaction with concentrated sulfuric and nitric acids or NO.sub.x at elevated temperatures, the improvement wherein the waste, prior to the reaction, is subjected to a preliminary comminution to a particle size less than or equal to 20 mm, and then to a primary comminution, at a temperature less than about 123.degree. K, to a particle size less than or equal to 1 mm.
    Type: Grant
    Filed: April 18, 1980
    Date of Patent: September 14, 1982
    Assignee: KEWA Kernbrennstoff-Wiederaufarbeitungs-Gesellschaft mbH
    Inventors: Gunter Krug, Helfried Lahr, Peter Schween, Herbert Wieczorek