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Browse by Category: Main > Electrical & Energy
Class Information
Number: 219/501
Name: Electric heating > Heating devices > With power supply and voltage or current regulation or current control means > Automatic regulating or control means > Including semiconductor means (e.g., transistor)
Description: Subject matter wherein the regulating or control structure includes devices comprised of semiconductor material such as transistors.










Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12

Patent Number Title Of Patent Date Issued
8692165 Power circuitry incorporating both foreign and domestic alternating current line voltages for a heated beverage apparatus Apr. 8, 2014
8692167 Medical device heaters and methods Apr. 8, 2014
8680442 Systems and methods for a temperature-controlled electrical outlet Mar. 25, 2014
8653420 Temperature control circuit of oven controlled crystal oscillator Feb. 18, 2014
8618449 Method and apparatus for controlling phase of AC power and method of controlling heating element of fixing unit Dec. 31, 2013
8598494 Method for controlling power supply to the liquid contents of a cooking vessel Dec. 3, 2013
8587224 Variable gate field-effect transistor and electrical and electronic apparatus including the same Nov. 19, 2013
8563903 Method and circuit for controlling radiant heat of transistor using metal-insulator transition device Oct. 22, 2013
8563904 Heated eyelash curler Oct. 22, 2013
8530800 Heater control device, image forming apparatus, and computer program product Sep. 10, 2013
8501599 Substrate processing apparatus and substrate processing method Aug. 6, 2013
8487221 Heat and/or light producing unit powered by a lithium secondary cell battery with high charge and discharge rate capability Jul. 16, 2013
8467668 Infrared room heater system Jun. 18, 2013
8420987 Thermistor with 3 terminals, thermistor-transistor, circuit for controlling heat of power transistor using the thermistor-transistor, and power system including the circuit Apr. 16, 2013
8395095 Electrothermal transfer device and electrothermal transfer method Mar. 12, 2013
8383993 Temperature control device of electric heater using thermo-sensitive resin and safety device thereof Feb. 26, 2013
8378271 Utilization of overvoltage and overcurrent compensation to extend the usable operating range of electronic devices Feb. 19, 2013
8330084 Temperature-control circuit of a heating line and a temperature-control method thereof Dec. 11, 2012
8286369 Device for determining the conductance of laundry, dryers and method for preventing deposits on electrodes Oct. 16, 2012
8283609 On die thermal sensor in semiconductor memory device Oct. 9, 2012
8274021 Fully integrated temperature regulator for biochemical applications Sep. 25, 2012
8263912 Noise reduced PWM driver Sep. 11, 2012
8253079 Temperature-control circuit of a heating line and a temperature-control method thereof Aug. 28, 2012
8217322 Temperature responsive back bias control for integrated circuit Jul. 10, 2012
8203102 Thermal type flow sensor Jun. 19, 2012
8198568 Input sensitive user interface Jun. 12, 2012
8115144 Method for controlling the operation of a glow-plug in a diesel engine Feb. 14, 2012
8115145 Systems and methods for base station enclosures Feb. 14, 2012
8067718 Method and apparatus for probing Nov. 29, 2011
8053709 Heat and/or light producing unit powered by a lithium secondary cell battery with high charge and discharge rate capability Nov. 8, 2011
8049145 Semiconductor device having variable parameter selection based on temperature and test method Nov. 1, 2011
8039774 Electrical heater with a resistive neutral plane Oct. 18, 2011
8035063 Electronic power control for cooktop heaters Oct. 11, 2011
8035060 Inkjet printhead with a plurality of vapor bubble generators Oct. 11, 2011
7975400 Device for determining the conductance of laundry, dryers and method for preventing deposits on electrodes Jul. 12, 2011
7928345 Aircraft windshield defogging/deicing system and method of use thereof Apr. 19, 2011
7923665 Temperature measuring device and method for measuring wafer-type thermometers Apr. 12, 2011
7885557 Thermistor isolation technique for a ceramic fuser heater Feb. 8, 2011
7829822 Electric blanket and system and method for making an electric blanket Nov. 9, 2010
7830151 Electronic voltage supply method and apparatus Nov. 9, 2010
7812287 Method for controlling a pyrolysis cleaning process in an oven Oct. 12, 2010
7745759 Apparatus for brewing beverages Jun. 29, 2010
7675006 Temperature sensing circuit in cooking appliance and controlling method of the same Mar. 9, 2010
7671304 Multiple zone temperature controller for injection molding system Mar. 2, 2010
7671305 Systems for regulating voltage to an electrical resistance igniter Mar. 2, 2010
7659493 Heating system and method Feb. 9, 2010
7659492 Method for operating an electrical device Feb. 9, 2010
7635829 Function-supervising device Dec. 22, 2009
7612311 Methods and systems for controlling electric heaters Nov. 3, 2009
7608805 Control system for battery powered heating device Oct. 27, 2009

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