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Class Information
Number: 338/22R
Name: Electrical resistors > Resistance value responsive to a condition > Current and/or voltage (e.g., ballast resistor) > Thermistor type
Description:










Sub-classes under this class:

Class Number Class Name Patents
338/23 Indirectly heated 71
338/22SD Semiconductor 305


Patents under this class:

Patent Number Title Of Patent Date Issued
8705245 Sensor device and method for manufacture Apr. 22, 2014
8702305 Temperature sensor Apr. 22, 2014
8687337 Over-current protection device Apr. 1, 2014
8686827 PTC element and heating-element module Apr. 1, 2014
8686826 Surface mountable PPTC device with integral weld plate Apr. 1, 2014
8669917 Receivers and transmitters using dark matter waves Mar. 11, 2014
8669841 Semiconductor ceramic composition for NTC thermistors Mar. 11, 2014
8653932 Conductive composite material with positive temperature coefficient of resistance and overcurrent protection component Feb. 18, 2014
8642931 Adaptive temperature controller Feb. 4, 2014
8624703 Semiconductor ceramic element and method for producing same Jan. 7, 2014
8598975 Thermistor and method for manufacturing the same Dec. 3, 2013
8584348 Method of making a surface coated electronic ceramic component Nov. 19, 2013
8576043 Surface-mount type overcurrent protection element Nov. 5, 2013
8562871 Composition and associated method Oct. 22, 2013
8558656 Over-current protection device Oct. 15, 2013
8558655 Positive temperature coefficient polymer composition and positive temperature coefficient circuit protection device Oct. 15, 2013
8558654 Vialess integration for dual thin films--thin film resistor and heater Oct. 15, 2013
8547198 Semiconductor ceramic composition for NTC thermistors and NTC thermistor Oct. 1, 2013
8536973 Over-current protection device Sep. 17, 2013
8525637 Resistor with temperature coefficient of resistance (TCR) compensation Sep. 3, 2013
8525636 Thermistor Sep. 3, 2013
8525635 Oxygen-barrier packaged surface mount device Sep. 3, 2013
8523430 Ultra thin temperature sensor device Sep. 3, 2013
8519817 Discharge gap filling composition and electrostatic discharge protector Aug. 27, 2013
8514052 Surface-mounted resistor and substrate for mounting the same thereon Aug. 20, 2013
8514050 Thermistor and method for manufacturing the same Aug. 20, 2013
8508328 Insertable polymer PTC over-current protection device Aug. 13, 2013
8508327 PTC material composition for making a PTC circuit protection device Aug. 13, 2013
8502639 Nanocomposite semiconducting material with reduced resistivity Aug. 6, 2013
8502638 Thermistor Aug. 6, 2013
8496854 Positive temperature coefficient materials with reduced negative temperature coefficient effect Jul. 30, 2013
8482373 Over-current protection device Jul. 9, 2013
8466771 Sintered metal oxide for thermistor, thermistor element, thermistor temperature sensor, and method for producing sintered metal oxide for thermistor Jun. 18, 2013
8461956 Over-current protection device Jun. 11, 2013
8451084 Laminated surface mounting type thermistor and manufacturing method thereof May. 28, 2013
RE44224 Surface-mounted over-current protection device May. 21, 2013
8446246 Metal oxide sintered compact for thermistor, thermistor element, thermistor temperature sensor, and manufacturing method for metal oxide sintered compact for thermistor May. 21, 2013
8434941 Temperature measuring sensor and method of producing same May. 7, 2013
8432247 Over-current protection device Apr. 30, 2013
8427273 Resistor structure of phase change material and trimming method thereof Apr. 23, 2013
8421584 Over-current protection device and method for manufacturing the same Apr. 16, 2013
8421583 PTC device Apr. 16, 2013
8410892 Conductive matrix power control system with biasing to cause tripping of the system Apr. 2, 2013
8400255 Oxygen-barrier packaged surface mount device Mar. 19, 2013
8390421 Semiconductor ceramic and positive-coefficient characteristic thermistor Mar. 5, 2013
8390420 Immersion well assembly Mar. 5, 2013
8373535 Thermistor and method of manufacture Feb. 12, 2013
8368504 Positive temperature coefficient circuit protection device Feb. 5, 2013
8367986 Heating element Feb. 5, 2013
8362871 Geometric and electric field considerations for including transient protective material in substrate devices Jan. 29, 2013











 
 
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