Patents by Inventor Steven B. Warrick

Steven B. Warrick 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).

  • Liquid suspension of polyethylene oxide for use in treating paper and pulp wastewater
    Patent number: 5342538
    Abstract: A flocculating agent which comprises: a particulate polyethylene oxide; an inert liquid vehicle comprising a mixture of a glycol and glycerine, wherein the specific gravity of the polyethylene oxide is approximately the same as the specific gravity of the inert liquid vehicle; a suspension agent, and, optionally, an acidic compound.
    Type: Grant
    Filed: September 9, 1992
    Date of Patent: August 30, 1994
    Assignee: Nalco Canada, Inc.
    Inventors: Daniel K. Chung, Steven B. Warrick