Patents by Inventor Zi Qiang Cao

Zi Qiang Cao 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).

  • Circular Saw With Cutting Depth Display
    Publication number: 20090126206
    Abstract: A circular saw is provided with a saw blade, a saw blade guard, and an adjustment bracket connected to a base plate to selectively adjust the base plate with respect to the saw blade, wherein a portion of the adjustment bracket is visible through at least a portion of the saw blade guard.
    Type: Application
    Filed: November 16, 2007
    Publication date: May 21, 2009
    Inventors: Ka Wai Chung, Rong Chen, Ling Li, Zi Qiang Cao