Patents by Inventor Diane K. Johnson

Diane K. Johnson 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).

  • Patent number: 6124250
    Abstract: The invention provides a process for preparing a highly alkaline, solid cleaning composition in a batch or continuous mixing system, at or below the melting temperature of the alkaline ingredients, and products produced by the process. Preferably, the ingredients are processed in an extruder, and the mixture is extruded directly into a mold or other packaging system for dispensing the cleaning composition. The consistency of the product ranges from that of a fused block solid to a malleable product. The highly alkaline cleaning compositions are useful for warewashing and cleaning hard surfaces, rinsing, sanitizing, deodorizing, laundry detergents, and the like.
    Type: Grant
    Filed: November 25, 1997
    Date of Patent: September 26, 2000
    Assignee: Ecolab Inc.
    Inventors: Keith E. Olson, James Thorson, Diane K. Johnson