Patents by Inventor James E. Anschutz

James E. Anschutz 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).

  • Method of making thin film composite membranes
    Patent number: 5368889
    Abstract: A method of making a semipermeable composite membrane comprising a discriminating layer formed insitu by interfacial polymerization is disclosed. The method provides for removal of a water immiscible solvent for a reactant in the interfacial polymerization by physical means not requiring a phase change such as a water knife, air knife, roller, or rubber blade. Composite membranes having good flux, good salt rejection, and low levels of remaining organic solvent are obtained.
    Type: Grant
    Filed: April 16, 1993
    Date of Patent: November 29, 1994
    Assignee: The Dow Chemical Company
    Inventors: David R. Johnson, Kenneth J. Stutts, Daniel A. Batzel, Virginia A. Hallfrisch, James E. Anschutz