Patents by Inventor Kam Chung Lui

Kam Chung Lui 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).

  • Woven geotextile fabric derived from beta-nucleated, polypropylene yarn or monofilament
    Patent number: 10081725
    Abstract: A woven geotextile fabric derived from beta-nucleated polyolefin yarn or monofilament, the method of manufacture of fabric, and the use of such fabric are disclosed. The yarn is made by compounding one or more polyolefins and a beta-nucleator reagent wherein the compounded mixture is extruded then drawn to at least 9 times its original length. The yarn or monofilament is woven into synthetic fabric useful for roadway construction, embankment stabilization, and mechanically stabilized earth.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: September 25, 2018
    Assignee: Propex Operating Company, LLC
    Inventors: Kam Chung Lui, Hugh Chester Gardner