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Class Information
Number: 219/446.1
Name: Electric heating > Heating devices > Combined with container, enclosure, or support for material to be heated > Exposed horizontal planar support surface for material to be heated (e.g., hot plate, etc.) > Having sensor
Description: Subject matter including means to detect a condition of the heating device or material.

Sub-classes under this class:

Class Number Class Name Patents
219/447.1 Responsive to presence of material (e.g., food, a cooking vessel, etc.) 67
219/448.11 Responsive to temperature 156

Patents under this class:
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Patent Number Title Of Patent Date Issued
8680438 Combination urn and warming plate and methods of using same Mar. 25, 2014
8624168 Heating plate with diode planar heater zones for semiconductor processing Jan. 7, 2014
8581153 Method of detecting abnormal placement of substrate, substrate processing method, computer-readable storage medium, and substrate processing apparatus Nov. 12, 2013
8511651 Heater unit humidification chamber monitor Aug. 20, 2013
8466391 Support for an electrical heating device, electrical heating device and method for the manufacture of an electrical heating device Jun. 18, 2013
8400315 Process under/over temperature indicator Mar. 19, 2013
8367979 Cooking platform and related method Feb. 5, 2013
8362402 Fluid warmer with switch assembly Jan. 29, 2013
8354938 Safety warning system and method Jan. 15, 2013
8314371 Rapid thermal processing chamber with micro-positioning system Nov. 20, 2012
8299406 Electronic temperature-sensing probe Oct. 30, 2012
8164029 Magnetic safety feature for cookware and cooking stoves Apr. 24, 2012
8085161 Safety warning system and method Dec. 27, 2011
8017890 Continuous capacitive slider controller for a smooth surfaced cooktop Sep. 13, 2011
7964824 System, method and computer program product for programmable counter-top electric oven Jun. 21, 2011
7932481 Operating device, electrical appliance with such an operating device, arrangement of a glass ceramic hob or an oven with such an operating device and method for operating such an operating dev Apr. 26, 2011
7928343 Microcantilever heater-thermometer with integrated temperature-compensated strain sensor Apr. 19, 2011
7868271 Control device and method for evaluating a control device Jan. 11, 2011
7812288 Sensor device for a heating device Oct. 12, 2010
7783176 Heaters for liquid heating vessels Aug. 24, 2010
7755504 Appliance warning system and method Jul. 13, 2010
7731798 Heated chuck for laser thermal processing Jun. 8, 2010
7667161 Magnetic safety feature for cookware and cooking stoves Feb. 23, 2010
7589299 Electronic power control for cooktop heaters Sep. 15, 2009
7569798 Temperature sensor based on resistance measurement and radiant heater with such a temperature sensor Aug. 4, 2009
7525069 Baking unit having device for sensing the attitude of parts of the unit and method of use of the baking unit Apr. 28, 2009
7428901 Cooking stove Sep. 30, 2008
7427728 Zone control heater plate for track lithography systems Sep. 23, 2008
7422010 Cooking stove Sep. 9, 2008
7417207 Heating device with temperature sensor and hob with heating devices Aug. 26, 2008
7370649 Cooking stove May. 13, 2008
7368686 Apparatus and methods for operating an electric appliance May. 6, 2008
7355151 Magnetic safety feature for cookware and cooking stoves Apr. 8, 2008
7307246 System and method of detecting temperature of a cooking utensil over a radiant cooktop Dec. 11, 2007
7164101 Electric heating assembly Jan. 16, 2007
7135658 Magnetic safety feature for cookware and cooking stoves Nov. 14, 2006
7112766 Enhanced visibility heat alert safety device for hot surfaces Sep. 26, 2006
7087865 Heat warning safety device using fiber optic cables Aug. 8, 2006
7076324 Directionless rotary encoder control system for a household appliance Jul. 11, 2006
7068177 Multi-sensor device and methods for fire detection Jun. 27, 2006
7053340 Heating device with two areas May. 30, 2006
7045748 Cooking appliance lockout May. 16, 2006
7045260 Post exposure modification of critical dimensions in mask fabrication May. 16, 2006
7022947 Systems for supporting ceramic susceptors Apr. 4, 2006
7019268 Wafer processing apparatus and method of use Mar. 28, 2006
6980876 Temperature-sensing wafer position detection system and method Dec. 27, 2005
6943324 Combination heating system for a cooking appliance Sep. 13, 2005
6930287 Random positioning cooking hob with user interface Aug. 16, 2005
6870138 Electric cooking hob and method for determining the location of cooking utensils on it Mar. 22, 2005
6861619 Method and apparatus for preparing semiconductor wafers for measurement Mar. 1, 2005

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