| Patents for H01F 38 - Adaptations of transformers or inductances for specific applications or functions (13,550) |
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| 05/17/1988 | US4744138 Method of manufacturing a high-voltage current transformer |
| 05/05/1988 | WO1988003320A1 Demountable fixing system for ignition coils in internal combustion engines |
| 05/04/1988 | EP0266231A1 Device for the digital acquisition of the alternating current output from a saturated magnetic core current transformer |
| 05/03/1988 | US4742296 Arrangement for measuring electrical power |
| 04/28/1988 | DE3708101A1 Loesbare befestigungs-anordnung fuer direkt-zuendspulen an brennkraftmaschinen Releasable fastening arrangement for directly-engine-ignition coils |
| 04/27/1988 | EP0264612A1 Current sensor and method for registering the current flux in analysing conductors |
| 04/26/1988 | US4740773 Ignition device with a high-voltage terminal |
| 04/26/1988 | US4740731 Two capacitor apparatus for sequential starting and operation of multiple series connected discharge lamps |
| 04/21/1988 | WO1988002944A1 Inductive coupled power system |
| 04/19/1988 | US4739296 Current transformer cooled by a circulating dielectric fluid |
| 04/12/1988 | US4737704 Transformer for arc and plasma setups having broad current adjustment range |
| 04/06/1988 | EP0262431A1 Heat-protective enclosure |
| 04/06/1988 | EP0262430A1 Current transformer device for high-voltage open air installations |
| 04/06/1988 | EP0262293A1 Measuring transformer for the measurement of a current flowing in an electric conductor |
| 04/05/1988 | US4736179 Ignition coil for internal combustion engines |
| 03/24/1988 | DE3730291A1 Zuendspule fuer mehrzylinder-brennkraftmaschine Ignition Coil for multi-cylinder internal combustion engine |
| 03/15/1988 | US4731599 Combined high-voltage current and voltage transformer |
| 03/08/1988 | US4730224 For transferring signals between processing circuits |
| 03/08/1988 | US4730178 Bobbins coils with terminal housing |
| 03/01/1988 | US4728918 Storage coil with air gap in core |
| 02/24/1988 | EP0256939A1 Current-measuring device |
| 02/24/1988 | EP0256207A1 Watchdog circuit for transmission line sensor module |
| 02/16/1988 | US4724604 Method of manufacturing a part with a coil |
| 02/11/1988 | WO1988001096A1 Rotary signal coupler |
| 02/03/1988 | EP0255409A1 Electrical connections of the secondary circuit of an ignition coil |
| 01/27/1988 | EP0254464A1 Regulated power supplies |
| 01/27/1988 | EP0253978A1 Electric transformer |
| 01/27/1988 | EP0253939A1 Expansible element for an ignition coil |
| 01/27/1988 | EP0253937A1 Low tension electrical connection device for an ignition coil, particularly for internal combustion car engines |
| 01/26/1988 | US4721935 Bobbins coils with terminal housing |
| 01/20/1988 | EP0253494A1 Winding form for high voltage transformer |
| 01/13/1988 | EP0252141A1 Magnetic circuit device provided with a current coil. |
| 01/07/1988 | EP0250834A1 Ignition coil, particularly an ignition coil for the ignition devices of internal-combustion engines |
| 01/07/1988 | DE3622190A1 Coil Core |
| 12/30/1987 | WO1987007977A1 Ignition coil for ignition systems of internal combustion engines |
| 12/30/1987 | CN87103745A Ignition coil for ignition systems of internal combustion engines |
| 12/29/1987 | US4715337 Engine ignition system with an insulated and extendable extender |
| 12/23/1987 | DE3720164A1 Magnetic induction coupling system for contact-free transmission of a signal between at least two units |
| 12/23/1987 | DE3640992A1 Zuendspule fuer zuendanlagen von brennkraftmaschinen Ignition coil for ignition systems of internal combustion machinery |
| 12/23/1987 | DE3619464A1 Zuendspule fuer zuendanlagen von brennkraftmaschinen Ignition coil for ignition systems of internal combustion machinery |
| 12/17/1987 | WO1987007774A1 Ignition coil for ignition systems of internal combustion engines |
| 12/17/1987 | DE3619984A1 Ignition coil for ignition systems of internal combustion engines |
| 12/16/1987 | CN87104021A Amplitude coil for final cascade of line scanning of television set |
| 12/15/1987 | US4713642 Face connected instrument transformer |
| 12/15/1987 | CA1230373A1 Ignition transformer and spark plug cover assembly |
| 12/09/1987 | EP0248717A1 Electromagnetic bobbin and ignition device for an internal-combustion engine comprising such a bobbin |
| 12/09/1987 | EP0248329A2 Amplitude coil for the output line deflection stage of a television receiver |
| 12/02/1987 | CN87103749A 电气变换器 Electrical converter |
| 11/24/1987 | US4709205 Inductive sensor for current measurement |
| 11/17/1987 | US4707619 Saturable inductor switch and pulse compression power supply employing the switch |
| 11/10/1987 | US4706017 Electrical current sensor |
| 10/28/1987 | EP0242354A1 Ignition device with a high voltage connection. |
| 10/28/1987 | EP0167556B1 Inductive electric connector |
| 10/21/1987 | EP0241505A1 Induction firing arrangement for a missile decoy system |
| 10/20/1987 | US4701738 High-voltage current transformer |
| 10/14/1987 | EP0240737A1 Ballast coil, especially for gas discharge lamps |
| 10/14/1987 | EP0240736A1 Ballast device or transformer, especially for discharge lamps |
| 10/13/1987 | US4700166 Current transformer having a rectangular iron core |
| 10/06/1987 | CA1227840A1 Electrical interconnect arrangement for a gfci magnetic sensor module plug-in subassembly |
| 10/01/1987 | DE3702782A1 Instrumentation transformer for high voltage (high tension) |
| 09/30/1987 | EP0238524A1 Current transformer for a static electricity counter. |
| 09/30/1987 | CN87101790A Combined high-voltage current and voltage mutual-inductor |
| 09/17/1987 | DE3608390A1 Combined high-voltage current transformer and voltage converter |
| 09/17/1987 | DE3608389A1 Combined high-voltage current transformer and voltage converter |
| 09/17/1987 | DE3608388A1 Combined high-voltage current transformer and voltage converter |
| 09/16/1987 | EP0236974A2 Combined current and voltage transformer for a high-voltage installation |
| 09/16/1987 | EP0236642A1 High-voltage connection device, particularly for a high-voltage transformer |
| 09/15/1987 | US4694246 Movable core transducer |
| 09/09/1987 | EP0236190A1 Multistage high-voltage transformer, particularly for a trichromatic cathode ray tube |
| 09/02/1987 | EP0233988A1 Current converter for measuring current flowing in an electric conductor |
| 08/26/1987 | EP0233756A1 Current probe |
| 08/25/1987 | US4689592 Combined transformer and inductor |
| 08/25/1987 | US4689546 Internal armature current monitoring in large three-phase generator |
| 08/19/1987 | EP0232471A2 High-voltage current transducer and method for producing it |
| 08/19/1987 | CN87100638A Measuring transformer for measuring current flowing in electrical conductor |
| 08/13/1987 | DE3603720A1 Ignition transformer which is operated using high frequency (radio frequency), for oil or gas burners |
| 08/11/1987 | US4685395 Controlled inductive coupling device |
| 08/05/1987 | EP0230811A2 Ignition coil with a closed magnetic circuit |
| 08/04/1987 | US4684912 Winding form for high voltage transformer |
| 07/28/1987 | US4683518 Ignition for oil burner |
| 07/28/1987 | US4683513 Dual current transformer current sensing method and sensor |
| 07/22/1987 | EP0229220A1 Current transformer |
| 07/22/1987 | CN86108680A Current transformers |
| 07/21/1987 | US4682101 Current transformer for direct and alternating current |
| 07/16/1987 | WO1987004298A1 Magnetic circuit device provided with a current coil |
| 07/08/1987 | EP0228012A1 Internal armature current monitoring in large three-phase generator |
| 07/08/1987 | CN86108255A Internal armature current monitoring in large three-phase generator |
| 07/07/1987 | US4677960 High efficiency voltage doubling ignition coil for CD system producing pulsed plasma type ignition |
| 07/07/1987 | CA1223931A1 Non-magnetic core current sensor |
| 07/02/1987 | WO1987004002A1 Current transformers |
| 07/02/1987 | WO1987003999A1 Ignition system for internal combustion engines |
| 07/02/1987 | DE3546126A1 Zuendanlage fuer brennkraftmaschinen Engine-ignition system for |
| 06/30/1987 | US4677538 Sweep transformer with terminating PC board |
| 06/24/1987 | EP0226180A1 Internal common neutral bus in large three-phase generator |
| 06/24/1987 | CN86107515A Internal common neutral bus in large three-phase generator |
| 06/23/1987 | US4675796 High switching frequency converter auxiliary magnetic winding and snubber circuit |
| 06/23/1987 | US4675639 Transformer assembly and winding therefor |
| 06/23/1987 | US4675638 Ferromagnetic multiple shell core for electric coils |
| 06/19/1987 | DE3544508A1 Combined transducer for measuring current and voltage simultaneously on pipe-sheathed conductors |
| 06/18/1987 | WO1987003737A1 High-voltage connection device, particularly for high voltage transformer |