Patents by Inventor Shui Liang Shen

Shui Liang Shen 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).

  • Drill bit
    Publication number: 20040156689
    Abstract: The present invention to provide a high performance and versatile drill bit, for drilling curved bores, milling, countersinking and other application. A drill bit comprises a crown and a shank extending from the crown, wherein the crown comprises at least three cutting blades.
    Type: Application
    Filed: February 7, 2003
    Publication date: August 12, 2004
    Inventor: Shui Liang Shen