| Patents for H01C 7 - Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material (13,712) |
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| 03/20/1990 | US4910492 Electric laminar resistor and method of making same |
| 03/20/1990 | US4910389 Conductive polymer compositions |
| 03/20/1990 | CA1266803A1 Thin film platinum resistance thermometer with high temperature diffusion barrier |
| 03/14/1990 | EP0358323A1 Voltage non-linear type resistors |
| 03/13/1990 | US4908730 Surge arrester with shunt gap |
| 03/13/1990 | US4908729 Lightning arrester monitor |
| 03/13/1990 | US4908599 Temperature-sensitive resistance element |
| 03/13/1990 | US4908185 Nickel, chromium, and as corrosion inhibitor and stabilizer aluminum, transition metal element, rare earth element |
| 03/13/1990 | US4908156 Self-regulating heating element and a process for the production thereof |
| 03/13/1990 | US4907340 Electrical device comprising conductive polymers |
| 03/08/1990 | DE3829195A1 Temperature sensor |
| 03/07/1990 | EP0357113A2 Production process of a non-linear voltage-dependent resistor |
| 03/07/1990 | EP0357008A2 Microwave interactive coating compositions and heating elements |
| 03/07/1990 | CN1040298A Resistive metal layers and method for making same |
| 03/06/1990 | US4907119 Packaged electrical transient surge protection |
| 03/06/1990 | US4906968 Percolating cermet thin film thermistor |
| 03/06/1990 | US4906965 Platinum temperature sensor |
| 03/06/1990 | US4906964 Voltage non-linear resistor |
| 03/06/1990 | US4906821 Resistor for the treatment of materials |
| 03/06/1990 | US4906406 Thermistor composition |
| 02/28/1990 | EP0356087A2 Positive temperature coefficient heater |
| 02/28/1990 | EP0355431A2 Alloy as material for control and heating elements having a positive temperature coefficient |
| 02/28/1990 | CN1040108A Lightening arrestor insulator and method of producing same |
| 02/27/1990 | US4905118 Base mounted electrical assembly |
| 02/27/1990 | US4904980 Refractory resistors with etch stop for superconductor integrated circuits |
| 02/27/1990 | US4904951 Method and circuit for reducing effects of distributed capacitance associated with large thin film resistors |
| 02/27/1990 | CA1266331A1 Self-regulating ptc heater |
| 02/21/1990 | CN1039923A Ptc thermistor device |
| 02/14/1990 | CN2052931U Thunder arrester for tv outdoor antenna |
| 02/13/1990 | US4901052 For providing uniform temperature |
| 02/13/1990 | US4901051 Platinum temperature sensor |
| 02/13/1990 | US4900602 Printed wiring board |
| 02/13/1990 | US4900417 Nichrome resistive element and method of making same |
| 02/08/1990 | DE3826204A1 Thin-film varistor |
| 02/07/1990 | CN1039497A Semiconductive ceramic composition |
| 02/06/1990 | US4899248 Modular electrical assemblies with plastic film barriers |
| 02/06/1990 | US4899126 Thick film resistor type printed circuit board |
| 01/31/1990 | EP0353196A1 Electroconductive cermet compositions for ignition and heating appliances |
| 01/31/1990 | CN1006667B Thermosensitive material with linear negative temp. coefficient |
| 01/30/1990 | US4897219 Voltage-dependent non-linear resistance ceramic composition |
| 01/25/1990 | WO1990000825A1 Assemblies of ptc circuit protection devices |
| 01/23/1990 | US4895756 Printed circuit substrate |
| 01/23/1990 | CA1264867A1 Electrical component having high strength given stressing due to temperature change and due to surge currents, particularly a varistor |
| 01/17/1990 | EP0351004A2 Non-linear voltage-dependent resistor |
| 01/17/1990 | EP0350770A2 Semiconductive ceramic composition |
| 01/17/1990 | CN1006518B Printed resister, its fabrication and use |
| 01/17/1990 | CN1006499B Process for mfg. voltage-sensitive ceramic resistors on the basis of zno and manjfactured resistors according to the process |
| 01/17/1990 | CN1006498B Oxidate electric resistance |
| 01/16/1990 | US4894637 Positive temperature coefficient thermistor device |
| 01/16/1990 | US4894185 Buffers to cause precipitation |
| 01/02/1990 | US4891622 Encapsulated electronic components |
| 01/02/1990 | US4891158 High temperature reliability |
| 12/26/1989 | US4890182 Circuit protection device |
| 12/26/1989 | US4889974 Tin oxide having temperature stability and heat resistance |
| 12/26/1989 | US4889760 Sintered monolithic dielectric ceramic |
| 12/20/1989 | EP0346895A2 Process for production of varistor material |
| 12/19/1989 | US4888574 Electrodepositing nickel-phosphorous from a plating bath free of sulfate and chloride salt |
| 12/14/1989 | WO1989012309A1 Thermistor intended primarily for temperature measurement and procedure for manufacture of a thermistor |
| 12/14/1989 | WO1989012308A1 Polymeric ptc composition and electrical device thereof |
| 12/13/1989 | EP0346263A2 Variable resistance thermal protector and method of making same |
| 12/12/1989 | US4887182 Germanium, selenium, and antimony intermetallic |
| 12/12/1989 | US4886956 Method of electroding PTC heaters |
| 12/06/1989 | EP0344734A1 Temperature self-controlling heating composition |
| 11/29/1989 | EP0343658A2 Lightning arrester monitor |
| 11/28/1989 | US4884163 Carbon black particles in polymers |
| 11/28/1989 | CA1263468A1 Circuit interrupter using arc commutation |
| 11/22/1989 | CN2048234U Long life thermosensitive resitor |
| 11/21/1989 | US4882466 Electrical devices comprising conductive polymers |
| 11/21/1989 | CA1263162A1 Electrical device casing, namely a lightning arrester, incorporating a moulded insulating enveloppe |
| 11/15/1989 | EP0341708A2 Thin film resistor and process for producing the same |
| 11/15/1989 | CN2047831U Lightning protector with single-phase source |
| 11/14/1989 | US4880577 Adding organic peroxide to graphite, carbon black and polymer; thermally decomposing a second added peroxide to crosslink the polymer |
| 11/08/1989 | EP0340887A2 A non-linear resistor having a polymeric membrane |
| 11/08/1989 | EP0340361A2 Electrical device comprising a PTC-resistive polymer element |
| 10/31/1989 | US4877554 Resistance paste |
| 10/31/1989 | CA1262589A1 Low resistance resistor compositions |
| 10/25/1989 | EP0338522A2 High temperature SiC thin film thermistor |
| 10/25/1989 | CN1036551A Preparation of the material for making refrigerator starter |
| 10/24/1989 | US4876440 Electrical devices comprising conductive polymer compositions |
| 10/24/1989 | US4876439 PTC devices |
| 10/24/1989 | CA1262467A1 Devices comprising ptc conductive polymers |
| 10/19/1989 | DE3810667A1 Elektrisches widerstandsmaterial fuer elektrothermische wandler in duennschichttechnik Electrical resistance material for electrothermal transducers in duennschichttechnik |
| 10/18/1989 | EP0337711A1 Liquid crystal display device |
| 10/18/1989 | EP0337134A2 Two-layered metal oxide film resistor |
| 10/11/1989 | EP0336497A1 Method of manufacturing a chip resistor |
| 10/10/1989 | US4873508 Variable resistance thermal protector and method of making same |
| 10/10/1989 | US4873507 Encapsulated thermal protector |
| 10/05/1989 | WO1989009496A1 Electrically resistive material for electrothermal transducers produced by thin-film technology |
| 10/04/1989 | EP0335480A2 Modular electrical assemblies with pressure relief |
| 10/04/1989 | EP0335479A2 Modular electrical assemblies with plastic film barriers |
| 09/27/1989 | EP0334647A1 Lightning arrestor insulator and method of producing the same |
| 09/27/1989 | EP0334473A2 Method of making a film-type resistor |
| 09/26/1989 | CA1261931A1 Electrical devices containing conductive polymers |
| 09/26/1989 | CA1260046A1 Disconnect switch for metal-clad, pressurized gas- insulated high-voltage switchgear with damping resistors |
| 09/21/1989 | WO1989008923A1 Method of producing laminated ceramic electronic parts |
| 09/20/1989 | EP0333392A2 Electro-optical device |
| 09/19/1989 | US4868537 Containing cesium; enhanced conduction |
| 09/13/1989 | EP0332462A2 Voltage non-linear resistor |
| 09/12/1989 | US4866560 Safeguarding electrical transient surge protection |
| 09/12/1989 | US4866411 Film-type cylindrical resistor, and method of making it |