Patents by Inventor Jung-Fang Yeh

Jung-Fang Yeh 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).

  • Yellow reactive dye composition
    Patent number: 6203581
    Abstract: A yellow reactive dye composition which includes two different yellow reactive dyes is disclosed. The yellow reactive dye composition disclosed here is a reactive dye composition with good stability, build-up, light fastness and wet fastness. The yellow reactive dye composition is suitable for the natural and regenerated cellulose fibers in exhaust dyeing, printing and continous dyeing.
    Type: Grant
    Filed: November 12, 1999
    Date of Patent: March 20, 2001
    Assignee: Everlight USA, Inc.
    Inventors: Bao-Kun Lai, Jung-Fang Yeh