Patents by Inventor Sing Keung Lai

Sing Keung Lai 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).

  • Square post gemstone setting
    Publication number: 20090100870
    Abstract: A gemstone setting that includes at least two gemstones arranged in a side-to-side configuration. The configuration forms a gemstone arrangement that has four corners. The setting also includes four posts which secure the four corners of the gemstone arrangement. The gemstone arrangement is also held in place by a support. The support supports the gemstone arrangement at a midpoint between the corners of the gemstone arrangement.
    Type: Application
    Filed: December 7, 2005
    Publication date: April 23, 2009
    Inventor: Sing Keung Lai