Patents by Inventor Pui Nam Chan

Pui Nam 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).

  • DEVICE AND METHOD FOR HEATING HAIR CURLERS
    Publication number: 20130019891
    Abstract: A hair curler heating system, is disclosed comprising a hair curler having a ferro-magnetic core, a plastic outer shell, an insulator therebetween, and a housing for receiving said curler and for heating it therein. The housing includes an induction coil, a control circuit operatively connected to the coil, a resonant capacitor operatively connected to the circuit, a heat sink connected to the capacitor, and a colored heating indication panel attached to the housing and operatively connected to the circuit.
    Type: Application
    Filed: July 21, 2011
    Publication date: January 24, 2013
    Inventors: Maggie Cheung, Kwong Cheung, Pui Nam Chan