Patents by Inventor David E. Legg

David E. Legg 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).

  • Supported sulfur compositions and the preparation and use thereof
    Patent number: 6491887
    Abstract: A solid combination of elemental sulfur and an inorganic support material prepared in an inert atmosphere to provide a composition for absorbing trialkyl arsines. The composition prepared thereby and the method for absorbing trialkyl arsines using the composition.
    Type: Grant
    Filed: June 13, 2000
    Date of Patent: December 10, 2002
    Assignee: Phillips Petroleum Company
    Inventors: Tin-Tack Peter Cheung, Donald H. Kubicek, David E. Legg