Patents by Inventor Dong Donald Nguyen

Dong Donald Nguyen 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 apparatus for reducing membrane fouling
    Patent number: 5888401
    Abstract: The present invention is directed, among other things, to methods for reducing fouling of a separation membrane having a concentrate side subject to a concentrate pressure (Pc) and a permeate side subject to permeate pressure (Pp), comprising raising an initial permeate pressure (Pp.sub.0) to an increased permeate pressure (Pp.sub.1). The present invention further provides a method of reducing fouling of a membrane having a concentrate side subject to a concentrate pressure (Pc) and a permeate side subject to permeate pressure (Pp), comprising periodically raising an initial permeate pressure (Pp.sub.0) to an increased permeate pressure (Pp.sub.1).
    Type: Grant
    Filed: September 16, 1996
    Date of Patent: March 30, 1999
    Assignee: Union Camp Corporation
    Inventor: Dong Donald Nguyen