Patents by Inventor Donald Murray Marshall

Donald Murray Marshall 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: 6641926
    Abstract: A laminate panel having desired characteristics even though the materials having these desired characteristics are not compatible in at least one aspect is disclosed. One of the substances having the desired characteristics may be adapted to be compatible with the other substance, and the two substances placed adjacent to each other. For example, the laminate panel includes a liquid impermeable layer that substantially prevents the penetration of moisture. The panel also includes a layer of a balancing substance disposed adjacent to the liquid impermeable layer to balance another layer of the laminate panel. The balancing substance is adapted to provide a desired bonding between the liquid impermeable layer and the layer of the balancing substance.
    Type: Grant
    Filed: August 13, 1999
    Date of Patent: November 4, 2003
    Assignee: Premark RWP Holdings, Inc.
    Inventors: Jerry L. Malina, Victoria Lynn Stolarski, Joel Lane Williams, Donald Murray Marshall, Timothy J. Lay
  • Patent number: 5989668
    Abstract: A waterproof laminate panel is disclosed. The panel includes a decorative layer and a backing layer. The backing layer is composed of at least one resin impregnated layer bound to a waterproofing layer which substantially prevents the penetration and release of moisture from the panel so as to maintain a constant moisture content within the decorative panel. The resin impregnated layer faces the decorative layer and the waterproofing layer is exposed to an external environment.
    Type: Grant
    Filed: October 16, 1998
    Date of Patent: November 23, 1999
    Inventors: Thomas J. Nelson, Robert Richard Krebs, Joel Lane Williams, Donald Murray Marshall, David Wayne Pruitt, Victoria Lynn Stolarski, Virgil Bedell Canady, Mark Thomas Krejchi, Janet Rose Stepan