Patents by Inventor Terry K. Anderson

Terry K. Anderson 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).

  • Laundry evaluation piece including bleaching activity indicator swatch
    Patent number: 5064440
    Abstract: The effect of chlorine concentration in laundry solutions on the life of the laundered fabrics is signalled by a chlorine concentration indicator swatch, in which contrastingly hued dyes, including one whose chlorine resistance is measurably stronger than the other, are combined to dye fabric test swatches an initial color. Including such fabric test swatches in chlorine-containing laundry solutions causes visually discernable changes in the hues of the swatches as the bleaching action progressively subtracts those dyes of lesser resistance. Chlorine concentration which, if excessive, seriously impairs laundered fabrics, may be determined by visually inspecting the swatches.
    Type: Grant
    Filed: February 12, 1990
    Date of Patent: November 12, 1991
    Assignee: Artex International, Inc.
    Inventors: Eugene R. Howard, Terry K. Anderson