Patents by Inventor Leif A. Poulsen

Leif A. Poulsen 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).

  • Reduction of Radioactivity Emitted from Radioactive Material
    Publication number: 20170098485
    Abstract: A method of reducing radiation emitted from a radioactive source material involves mixing the radioactive material with mica. Uranium ore is a radioactive source material which when mixed with mica significantly reduces the amount of radiation emitted. The radioactive source material and the mica may be ground to similar sized small pieces and mixed at a one to one ratio. The radioactive source material and the mica may be consistently mixed together. In the alternative the mica may be placed around the outside of the radioactive source material. The mica may contain manganese.
    Type: Application
    Filed: October 6, 2015
    Publication date: April 6, 2017
    Inventor: Leif A. Poulsen
  • Chimney cap component
    Patent number: D307792
    Type: Grant
    Filed: May 4, 1988
    Date of Patent: May 8, 1990
    Inventor: Leif A. Poulsen