Patents by Inventor Hui Do Chung

Hui Do Chung 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).

  • Process for dyeing yarn hanks
    Patent number: 3969074
    Abstract: Two dye baths each have hangers and orificed spindles, about which may be mounted yarn hanks. A dye supply alternatey simultaneously supplies dye through the spindle orifices of one bath to spray dye the yarn hanks therein, and supplies dye into the other bath to dip dye the yarn hanks therein.
    Type: Grant
    Filed: March 25, 1975
    Date of Patent: July 13, 1976
    Inventor: Hui Do Chung