Patents by Inventor William F. Lenzke

William F. Lenzke 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).

  • METHODS AND SYSTEMS FOR SEPARATION OF THORIUM FROM URANIUM AND THEIR DECAY PRODUCTS
    Publication number: 20210354993
    Abstract: Methods and systems for separation of thorium from uranium and their decay products are provided. The method comprises combining a nuclear fuel feedstock comprising thorium and uranium with a first acid to form a first solution. The first solution is contacted an ion exchange resin that is selective for thorium or uranium. The thorium or uranium is at least partially removed from the first solution by binding the thorium or uranium to the ion exchange resin thereby forming a second solution. The second solution is combined with oxalic acid to precipitate uranium or thorium from the second solution to form a precipitate. The precipitate is separated from the second solution.
    Type: Application
    Filed: May 18, 2020
    Publication date: November 18, 2021
    Applicant: Westinghouse Electric Company LLC
    Inventors: John L. LYONS, Edward J. LAHODA, Michael R. ICKES, Daniel C. FLAHIVE, Frank C. GIFT, JR., William F. LENZKE
  • Method and apparatus for illuminating projecting features on the surface of a semiconductor wafer
    Patent number: 6547409
    Abstract: Plural light sources are provided for directing ring patterns of light toward at least one reflective bump formed on and projecting from a first wafer surface of a semiconductor wafer. The intensity of light from the light sources may be varied and may be varied independently of one another.
    Type: Grant
    Filed: January 12, 2001
    Date of Patent: April 15, 2003
    Assignee: Electroglas, Inc.
    Inventors: Cary S. Kiest, William F. Lenzke, Jr.
  • Method and apparatus for illuminating projecting features on the surface of a semiconductor wafer
    Publication number: 20020093812
    Abstract: Plural light sources are provided for directing ring patterns of light toward at least one reflective bump formed on and projecting from a first wafer surface of a semiconductor wafer. The intensity of light from the light sources may be varied and may be varied independently of one another.
    Type: Application
    Filed: January 12, 2001
    Publication date: July 18, 2002
    Applicant: Electroglas, Inc.
    Inventors: Cary S. Kiest, William F. Lenzke