Patents by Inventor Henrich J. Schroeder

Henrich J. Schroeder 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 treating radioactive waste water
    Patent number: 4476048
    Abstract: Radioactive waste water containing boric acid is concentrated in an evaporator to which an alkali is added to maintain a substantially neutral pH. The boric acid is sedimented out by cooling the solution and an acid is added to the latter to increase the solids recovery by lowering the pH. The solid sediment is vacuum distilled to yield a moist powder.
    Type: Grant
    Filed: March 15, 1982
    Date of Patent: October 9, 1984
    Assignee: Rheinisch-Westfalisches Elektrizitatswerk AG
    Inventors: Rainer Ambros, Norbert Brenner, Jurgen Fischer, Gottfried Paffrath, Henrich J. Schroeder