Patents Represented by Attorney Robert L. Daub

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  • End identifier for multidye yarn
    Patent number: 5066308
    Abstract: A method of distinguishing two or more variant dye fibers in greige form is disclosed. The technique involves adding sufficient pigment to one of the fibers to make it visible to the eye.
    Type: Grant
    Filed: February 6, 1990
    Date of Patent: November 19, 1991
    Assignee: BASF Corporation
    Inventors: Ling Yeh, Hugh G. Harrelson, Andrew M. Coons, III