Patents by Inventor Yi-Liang Fong

Yi-Liang Fong 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).

  • Heater Wire Control Circuit and Method to Operate a Heating Element
    Publication number: 20110284520
    Abstract: A heater wire control circuit (1) to control the AC power supply of a connected heating element (21) comprises an interrupting means (31) having at least three switching states with regard to the AC power supplied to the heating element (21), e.g. both half-waves on, positive or negative half-wave off and both half-waves off, and a control means (32) to determine the temperature of the heating element (21) and an to decide on the switching status of the interrupting means (31) depending on said temperature and/or a user setting.
    Type: Application
    Filed: July 10, 2009
    Publication date: November 24, 2011
    Applicant: MICROLIFE INTELLECTUAL PROPERTY GMBH
    Inventor: Yi-Liang Fong
  • Musical ornamental carousel
    Patent number: 5640791
    Abstract: An improved musical ornamental carousel formed by assembly of various structural parts is disclosed and includes on the bottom thereof a base provided with a battery compartment, a hollow support post vertically located in the center of the base, a revolving disc rotatably supported on the upper part of the support post, a fixing disc located at the top of the hollow support post and spaced above the revolving disc.
    Type: Grant
    Filed: August 14, 1995
    Date of Patent: June 24, 1997
    Inventor: Yi-Liang Fong