Patents by Inventor David Paul Landray

David Paul Landray 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).

  • Process for oxidation of cyclohexane
    Patent number: 6888034
    Abstract: Process for oxidizing cyclohexane in which oxygen is contacted with cyclohexane at a pre-selected feed rate in a first reaction zone and unconsumed oxygen is contacted with cyclohexane in a second reaction zone in which the cyclohexane feed rate is lower than the pre-selected feed rate.
    Type: Grant
    Filed: November 5, 2003
    Date of Patent: May 3, 2005
    Assignee: Invista North America S.A.R.L.
    Inventors: David Paul Landray, Ludovic Rick Fodor, Bruce Edwin Murphree, James Marvin Rung