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Class Information
Number: 219/704
Name: Electric heating > Microwave heating > With control system > Load condition sensor
Description: Subject matter wherein a device is indicative of or responding to a physical state of the material or object.










Sub-classes under this class:

Class Number Class Name Patents
219/706 By ultrasonic or acoustic 22
219/709 Field intensity/reflection 80
219/707 Gas or vapor 139
219/705 Plural diverse types 86
219/710 Temperature 260
219/708 Weight 94


Patents under this class:
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Patent Number Title Of Patent Date Issued
8618450 Domestic oven and cooking process that uses the same Dec. 31, 2013
8546735 Microwave oven Oct. 1, 2013
8530806 Method and a device for regulating the electrical power supply to a magnetron, and an installation for treating thermoplastic containers being an application thereof Sep. 10, 2013
8530807 Microwave oven and related method Sep. 10, 2013
8461500 Microwave oven Jun. 11, 2013
8357885 Microwave furnace Jan. 22, 2013
8324540 Microwave oven switching between predefined modes Dec. 4, 2012
8299409 Fuzzy logic-based control of microwave dryers Oct. 30, 2012
8207478 Method and apparatus for rapid thermal processing and bonding of materials using RF and microwaves Jun. 26, 2012
8207479 Electromagnetic heating according to an efficiency of energy transfer Jun. 26, 2012
8143560 Cooking apparatus Mar. 27, 2012
7525074 Method and apparatus for detecting metal placed within a microwave oven Apr. 28, 2009
7358464 Method for temperature measurement in a household appliance Apr. 15, 2008
7326894 Heating element on the polymer inside surface of a motor vehicle front-end module/bumper in an operative connection to a radar transmitter/receiver unit Feb. 5, 2008
7256376 Microwave sensor and mutual interference preventing system between microwave sensors Aug. 14, 2007
7214915 High frequency heating apparatus May. 8, 2007
7141769 Spectroscopy-based real-time control for microwave-assisted chemistry Nov. 28, 2006
7087874 Apparatus for drying ceramic molded articles using microwave energy Aug. 8, 2006
6989519 Controlled flow instrument for microwave assisted chemistry with high viscosity liquids and heterogeneous mixtures Jan. 24, 2006
6966226 Pressure measurement in microwave-assisted chemical synthesis Nov. 22, 2005
6949729 Methods and apparatus for controlling operation of a microwave oven in a network Sep. 27, 2005
6886408 Pressure measurement in microwave-assisted chemical synthesis May. 3, 2005
6867400 Method and apparatus for continuous flow microwave-assisted chemistry techniques Mar. 15, 2005
6867402 System for sensing the presence of a load in an oven cavity of a microwave cooking appliance Mar. 15, 2005
6844535 Temperature measuring device for microwave oven Jan. 18, 2005
6630652 Microwave-assisted chemical synthesis instrument with fixed tuning Oct. 7, 2003
6603102 Pressure monitoring arrangement for heating system of a convection cooking appliance Aug. 5, 2003
6538240 Method and apparatus for controlling a microwave oven Mar. 25, 2003
6472650 Food amount detector of a microwave oven, a microwave oven employing a food amount detector and a control method thereof Oct. 29, 2002
6452141 Microwave oven with magnetic field detecting device Sep. 17, 2002
6396035 Microwave oven and data obtaining method therefor May. 28, 2002
6348677 Sensor circuit for detecting the presence of a pan on an electric cooker hob Feb. 19, 2002
6348680 Food amount detector of a microwave oven, a microwave oven employing a food amount detector and a control method thereof Feb. 19, 2002
6271538 High-frequency detecting elements and high-frequency heater using the same Aug. 7, 2001
6268597 Microwave oven Jul. 31, 2001
6252213 Method and apparatus for compensating cooking time of microwave oven Jun. 26, 2001
6247246 Microwave moisture analyzer: apparatus and method Jun. 19, 2001
6246038 Pressure sensing reaction vessel for microwave assisted chemistry Jun. 12, 2001
6215112 Food amount detector of a microwave oven, a microwave oven employing a food amount detector and a control method thereof Apr. 10, 2001
6172348 High frequency heating apparatus Jan. 9, 2001
6166362 Automatic cooking control method for a microwave oven Dec. 26, 2000
6166363 Defrosting method for a microwave oven Dec. 26, 2000
6166364 Microwave oven having a microwave detecting device Dec. 26, 2000
6157014 Product-based microwave power level controller Dec. 5, 2000
6091057 Broiler oven Jul. 18, 2000
6080977 Apparatus for concentrating salt-containing solutions with microwave energy Jun. 27, 2000
6077478 Microwave powered sterile access port Jun. 20, 2000
6054693 Microwave technique for brazing materials Apr. 25, 2000
6051824 Wet prevention apparatus for sensor of microwave oven Apr. 18, 2000
6028298 Turntable driving apparatus of microwave oven and control method thereof Feb. 22, 2000

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