Patents by Inventor Tsz Yueng Chan

Tsz Yueng 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).

  • SELF-LOCKING LOCKBOX WITH MECHANICAL PUSH BUTTON COMBINATION LOCK
    Publication number: 20150330105
    Abstract: The present invention generally relates to lockboxes. More particularly, the invention relates to a mechanical pushbutton combination lockbox which is designed to self-lock such that an additional input or locking action is not required to lock the lockbox when closed.
    Type: Application
    Filed: May 13, 2014
    Publication date: November 19, 2015
    Inventors: Kwan Yuen NG, Sarah NG, Tsz Yueng CHAN, Caron NG
  • Self-Locking Lockbox System and Method
    Publication number: 20150292239
    Abstract: The present invention generally relates to lockboxes. More particularly, the invention relates to a lockbox which is designed to self-lock such that an additional input or locking action is not required to lock the lockbox when closed.
    Type: Application
    Filed: April 9, 2014
    Publication date: October 15, 2015
    Inventors: Kwan Yuen Ng, Sarah Ng, Tsz Yueng Chan, Caron Ng
  • Push button lockbox
    Patent number: D748889
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: February 2, 2016
    Inventors: Kwan Yuen Ng, Sarah Ng, Tsz Yueng Chan, Caron Ng