Patents by Inventor Lai Bao-Kun

Lai Bao-Kun 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).

  • Black dye composition
    Patent number: 6126700
    Abstract: A black dye composition comprising (a) a black reactive dye of the formula (I); ##STR1## (b) at least a black or blue reactive dye with a good fastness of oxidative bleach and wash fastness; and (c) at least a red, orange or yellow reactive azo dye. The black dye composition of present invention can be widely applied to dyeing a greater range of spinning and weaving products that contain hydroxyl group or amide group.
    Type: Grant
    Filed: January 20, 1999
    Date of Patent: October 3, 2000
    Assignee: Everlight USA, Inc.
    Inventors: Lai Bao-Kun, Song Der-Chin