Patents by Inventor Keng Hsin Liu

Keng Hsin Liu 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).

  • Multi-functional hair-dyeing comb structure
    Patent number: 7063090
    Abstract: Multi-functional hair-dyeing comb structure is disclosed. The comb structure has a housing having a detachable combing teeth seat with a liquid sac. The liquid sac contains dye for dyeing hairs, which is discharged by an electron's motor and are evenly discharged.
    Type: Grant
    Filed: February 23, 2004
    Date of Patent: June 20, 2006
    Assignee: Jonder Industries Ltd.
    Inventors: Jang Chang Wang, Keng Hsin Liu