| 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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| 12/16/1980 | US4240124 Surge arrester having coaxial shunt gap |
| 12/10/1980 | EP0020081A1 Laminates comprising an electrode and a conductive polymer, and process and apparatus for their production |
| 12/10/1980 | EP0020010A1 A capped resilient electrical housing and arrester comprising such a housing |
| 12/10/1980 | EP0019889A1 Zinc oxide varistor |
| 12/10/1980 | EP0019884A1 Circuit arrangement for supervising the operational characteristics of an excess voltage arrester without spark gap |
| 12/09/1980 | US4238812 Circuit protection devices comprising PTC elements |
| 12/02/1980 | US4237516 Protective electrical discharge device |
| 12/02/1980 | US4237515 Protective electrical discharge device |
| 12/02/1980 | US4237441 Low resistivity PTC compositions |
| 12/02/1980 | US4236298 Method of trimming thermistor or other electrical components and the contacts thereof |
| 11/18/1980 | US4234902 Enclosed lightning arrester |
| 11/12/1980 | EP0018846A1 Electrical resistor and method of making same |
| 11/11/1980 | US4233641 Line protector for a communications circuit |
| 11/11/1980 | US4232441 Method for preparing rare earth or yttrium, transition metal oxide thermistors |
| 11/04/1980 | US4232214 PTC Honeycomb heating element with multiple electrode layers |
| 11/04/1980 | US4231902 Films, cobalt oxide, zinc oxide, manganese oxide |
| 11/04/1980 | US4231816 Chromium, iron, cobalt |
| 11/04/1980 | US4231254 Rare earth or yttrium, transition metal oxide thermistors |
| 10/29/1980 | EP0018067A1 Line protector for a communications circuit |
| 10/29/1980 | EP0017979A1 Electrical network and method of manufacturing same |
| 10/28/1980 | US4230935 Immersion heater |
| 10/16/1980 | WO1980002143A1 Process for preparing gel-like composition of acetylene high polymer,and process for fabrication thereof |
| 10/15/1980 | EP0017375A1 Exhaust gas sensor having porous metal-impregnated ceramic element |
| 10/15/1980 | EP0017337A1 Line protector for a communications circuit |
| 10/15/1980 | EP0017324A1 Surge voltage arrester with fail-safe feature |
| 10/14/1980 | US4228454 High temperature cadmium boracite semiconductor device |
| 10/14/1980 | US4228128 Exhaust gas sensor having porous, metal-impregnated ceramic element |
| 10/14/1980 | CA1087387A1 Nonlinear resistor material and method of manufacture |
| 10/07/1980 | US4227229 Lightning arrester device |
| 10/01/1980 | EP0016263A1 Thin film resistor having a high temperature coefficient and method of manufacturing the same |
| 10/01/1980 | EP0016251A1 Thin-film electronic circuit and method of manufacturing same |
| 09/30/1980 | US4225468 Temperature coefficient of resistance modifiers for thick film resistors |
| 09/30/1980 | CA1086537A1 Cermet composition for and method of making strain gage transducers |
| 09/16/1980 | US4223366 Gapless surge arrester |
| 09/16/1980 | US4222783 Barium titanate series ceramics having a positive temperature coefficient of electric resistance |
| 09/09/1980 | US4222025 Nonconductors, cylinders, gold, silver |
| 09/09/1980 | US4222024 Thermistor assembly |
| 09/02/1980 | CA1085062A1 Method of manufacturing electric resistors from metal sheets or films, and the resistors obtained thereby |
| 08/26/1980 | US4219862 Lightning arrester device |
| 08/26/1980 | US4219518 Controlled quenching |
| 08/19/1980 | US4218721 Heat transfer system for voltage surge arresters |
| 08/12/1980 | US4217570 Multilayer passivation coating |
| 08/12/1980 | CA1083681A1 Resistance element for obtaining linear output for variable resistor |
| 08/06/1980 | EP0013977A1 Thick film resistor composition |
| 07/29/1980 | US4215020 Electrical resistor material, resistor made therefrom and method of making the same |
| 07/29/1980 | CA1082809A1 Irreversible semiconductor switching element and semiconductor memory device utilizing the same |
| 07/29/1980 | CA1082447A1 Voltage stable compositions |
| 07/23/1980 | EP0013401A1 Lightning arrester device for power transmission line |
| 07/15/1980 | CA1081450A1 Electric resistor having a resistance body of silicon carbide and a negative temperature coefficient |
| 07/08/1980 | US4212045 Multi-terminal varistor configuration |
| 07/08/1980 | US4211994 Resistors, polycrystalline |
| 07/01/1980 | US4210800 Heating element comprising a PTC-resistor body |
| 07/01/1980 | US4210774 Methyl methacrylate polymer |
| 07/01/1980 | CA1080590A1 Electrically semi-conducting ceramic body |
| 06/24/1980 | US4209764 Firing mixture of glass frit and tantalum particles |
| 06/24/1980 | US4209474 Process for preparing semiconducting silicon carbide sintered body |
| 06/24/1980 | US4208786 Titania thermistor and method of fabricating |
| 06/17/1980 | US4208449 Pyrolysis of carbon compounds and silicon compounds |
| 06/11/1980 | EP0012002A1 Glaze resistor compositions |
| 06/10/1980 | US4206647 Titania thermistor and method of fabricating |
| 06/10/1980 | CA1079056A1 Cermet varistors |
| 06/03/1980 | US4206308 Organic heat-sensitive semiconductive materials |
| 05/27/1980 | US4205299 Chrome-nickel film containing one of metals gold, aluminum, cobalt or tin |
| 05/27/1980 | US4205298 Resistor material, resistor made therefrom and method of making the same |
| 05/27/1980 | US4205051 Stabilized zirconia for oxygen ion-conductive solid electrolyte |
| 05/27/1980 | US4204935 Thin-film resistor and process for the production thereof |
| 05/20/1980 | US4204239 Abnormal voltage protection device |
| 05/20/1980 | US4204187 Printed circuit substrate with resistance elements |
| 05/20/1980 | US4204186 Temperature probe |
| 05/20/1980 | US4204107 Thick-film thermal printing head and method of manufacturing the same |
| 05/20/1980 | US4203199 Solid state sensor |
| 05/20/1980 | CA1078076A1 Thermometers (solenoid resistance thermometer) |
| 05/20/1980 | CA1077654A1 Vehicles comprising dibutyl carbitol |
| 05/13/1980 | US4203143 Protective device |
| 05/13/1980 | US4202917 Method for manufacture of indium oxide (III) film |
| 05/13/1980 | US4202799 Organic-heat-sensitive semiconductive compounds |
| 05/13/1980 | CA1077351A1 Resistance material and resistor made therefrom |
| 05/13/1980 | CA1077254A1 Electric insulators |
| 05/06/1980 | US4201968 Temperature probe assembly |
| 05/06/1980 | US4200973 Method of making self-temperature regulating electrical heating cable |
| 05/06/1980 | US4200970 Method of adjusting resistance of a thermistor |
| 04/22/1980 | CA1076265A1 Thick film resistance thermometer |
| 04/16/1980 | EP0009992A1 Articles from resistance foils and their use |
| 04/16/1980 | EP0009825A1 Humidity variation detecting apparatus |
| 04/15/1980 | US4198669 Compact PTC resistor |
| 04/15/1980 | US4198443 Sinterless zinc oxide varistor devices |
| 04/15/1980 | CA1075829A1 Thick film varistor and method of making the same |
| 04/15/1980 | CA1075828A1 Cylindrical varistor and method of making the same |
| 04/08/1980 | US4197521 Thick film fusing resistor |
| 04/01/1980 | US4196411 Dual resistor element |
| 04/01/1980 | CA1074642A1 Metallized glass seal resistor compositions and resistor spark plugs |
| 03/25/1980 | CA1074096A1 Positive temperature coefficient compositions |
| 03/18/1980 | US4194174 Method for fabricating ballasted finger electrode |
| 03/18/1980 | US4194108 Thermal printing head and method of making same |
| 03/11/1980 | CA1073556A1 Article with electrically-resistive glaze for use in high-electric fields and method of making same |
| 03/05/1980 | EP0008437A1 Resistor and/or conductor composition comprising a hexaboride conductive material |
| 03/04/1980 | US4191938 Lasing |
| 03/04/1980 | US4191665 Barium titanate semiconductor ceramic compositions |
| 02/26/1980 | CA1072687A1 Thermistor with leads and method of making |
| 02/20/1980 | EP0008275A1 Plug connector comprising an automatic control device to stabilise the temperature of at least one connection point |