Patents by Inventor Wan Shan Chan

Wan Shan 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).

  • Publication number: 20080291044
    Abstract: An alerting system for one or more objects belonging to a user having an alert informer, which is adapted for being carried by the user, having an alert generator for generating an alert signal. The alerting system further has one or more target detectors, which are adapted for being held at the objects respectively. The target detectors are wirelessly linked to the alert informer within a detectable range. When one of the target detectors is located out of the detectable range, the alert generator of the alert informer generates the alert signal for informing the user to be aware of the respective object.
    Type: Application
    Filed: May 23, 2007
    Publication date: November 27, 2008
    Inventor: Wan Shan Chan
  • Patent number: 7255288
    Abstract: An aroma therapy for fountain comprises a fountain assembly, which comprises a water container having a bottom, a top opening and an interior, a aroma supporting member for support an aroma therapy dispensing unit, comprising a heating source adapted to generate a heat, a bowl adapted for reserving an aromatic substance therein, a base stand detachably and securely mounted on the aroma supporting member for holding the heat source, and a plurality of supporting frame extended upwardly from the base to securely sustain the bowl, such that the heat generated from the heating source disposed beneath the bowl could heat the bowl thereby diffusing the aromatic substance reserved in the bowl volatized into surrounding air.
    Type: Grant
    Filed: March 8, 2004
    Date of Patent: August 14, 2007
    Inventor: Wan Shan Chan