Patents by Inventor Fritz Weigel, deceased

Fritz Weigel, deceased 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 for obtaining a solution of nuclear fuel not readily dissovable, especially of PuOhd 2 or (U/Pu)O.sub.2 mixed oxide
    Patent number: 4839103
    Abstract: Not readily dissolvable nuclear fuel is dissolved in an airtight closed vessel or autoclave. Nitric acid is evaporated and condensed in the vessel and the nitric acid condensate trickles over the nuclear fuel disposed outside of the nitric acid undergoing evaporation.
    Type: Grant
    Filed: January 21, 1987
    Date of Patent: June 13, 1989
    Assignee: Alkem GmbH
    Inventors: Michael Steinhauser, Gunter Hoffmann, Fritz Weigel, deceased, Kurt Wittmann, Dieter Schafer