Patents by Inventor Maryam Z. Anstead

Maryam Z. Anstead 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 and compositions for minimizing biological and colloidal fouling
    Patent number: 6180056
    Abstract: A composition for minimizing biological and/or colloidal fouling is described, which includes an anionic antiscalant and a cationically charged biocide. Further, a method of controlling fouling is described and achieved by introducing a formulation of the present invention into an aqueous system which uses a separation membrane. The compositions used in the present invention are compatible with such separation systems and preferably prevent membrane fouling.
    Type: Grant
    Filed: December 10, 1998
    Date of Patent: January 30, 2001
    Assignees: Buckman Laboratories International Inc., Betz Dearborn Inc.
    Inventors: Thomas E. McNeel, Daniel L. Comstock, Maryam Z. Anstead, Richard A. Clark