Patents by Inventor Tsz Yeung Chan

Tsz Yeung Chan 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).

  • Wireless locking lockbox
    Patent number: D803662
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: November 28, 2017
    Assignee: Nuset, Inc.
    Inventors: Kwan Yuen Ng, Sarah Ng, Tsz Yeung Chan, Caron Ng