Patents by Inventor Dennis Liebman

Dennis Liebman 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).

  • Patent number: 4657731
    Abstract: Water containing cesium, such as the reactor coolant of a pressurized water nuclear reactor, is purified by passing the water through an ion exchange resin bed containing a highly cross-linked, macroporous, strong acid resin derived from a monovinylidene aromatic and a cross-linking monomer compolymerizable therewith. The cross-linking monomer is employed in amounts of at least 12 mole percent based on the total weight of the monovinylidene aromatic and cross-linking monomer.
    Type: Grant
    Filed: February 13, 1984
    Date of Patent: April 14, 1987
    Assignee: The Dow Chemical Company
    Inventors: Joseph A. N. Otte, Dennis Liebman