Patents by Inventor Gustav Fischer

Gustav Fischer 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 treating radioactive solutions
    Patent number: 4340499
    Abstract: Concentrated liquid waste solutions containing radioactive substances and also complex formers is treated by maintaining pH 5 and adding KMnO.sub.4 to oxidize complex formers, and solidifying and embedding the resultant solution in a binder. Dilute solutions are also maintained at a pH of 5 and excess KMnO.sub.4 added. The excess MnO.sub.4.sup.- is reduced to MnO.sub.2 by addition MnSO.sub.4. MnO.sub.2 separates and adsorbs radionuclides Mn-54, Sb-124, Sb-125 and 65-Zn contained in the solution.
    Type: Grant
    Filed: February 28, 1980
    Date of Patent: July 20, 1982
    Assignee: Kraftwerk Union Aktiengesellschaft
    Inventor: Gustav Fischer
  • Method of doping a semiconductor layer
    Patent number: 3967982
    Abstract: A semiconductor layer, such as an epitaxial layer on a suitable substrate is subjected to controlled bombardment by neutrons whereby the atoms of the semiconductor layer are converted via nuclear reaction into doping material atoms.
    Type: Grant
    Filed: July 11, 1975
    Date of Patent: July 6, 1976
    Assignee: Siemens Aktiengesellschaft
    Inventors: Heinz-Herbert Arndt, Joachim Burtscher, Gustav Fischer, Ernst Haas, Joachim Martin, Gunter Raab, Manfred Schnoeller