| Patents for H02H 9 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection (21,232) |
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| 02/23/1994 | EP0583749A1 Non-linear inductance and method for producing the coil core |
| 02/22/1994 | US5289335 Surge protector of non-inductive resistor connected in series with zinc oxide arrester which is also connected in parallel with spark gap, durability |
| 02/22/1994 | US5289334 CMOS on-chip ESD protection circuit and semiconductor structure |
| 02/22/1994 | US5289109 Current limit circuit |
| 02/17/1994 | WO1994003955A1 High temperature superconducting fault current limiter |
| 02/16/1994 | CN2156575Y Thunder insulator |
| 02/15/1994 | US5287263 Inrush current control circuit |
| 02/15/1994 | US5287241 Shunt circuit for electrostatic discharge protection |
| 02/15/1994 | US5287008 Electrostatic discharge noise suppression method and system for electronic devices |
| 02/14/1994 | CA2101499A1 Input protection circuit for power converter |
| 02/08/1994 | US5285344 Overvoltage protection device |
| 02/02/1994 | CN1081554A Incandescent Globe Power Reducer |
| 02/01/1994 | US5283707 Inrush current limiting circuit |
| 01/27/1994 | DE4224244A1 Electronic switch for PTC load - has adjuster between supply voltage source and load, switchable by control voltage. |
| 01/25/1994 | US5280983 Semiconductor processing system with robotic autoloader and load lock |
| 01/20/1994 | WO1994001961A1 Switching arrangement for a communications channel |
| 01/20/1994 | WO1994001960A1 Remotely actuated switch and protection circuit |
| 01/20/1994 | WO1994001911A1 Series circuit provided with by-pass circuits, as well as by-pass circuit to be used therewith |
| 01/20/1994 | WO1994001909A1 Current limiters in power utility applications |
| 01/20/1994 | CA2139436A1 Switching arrangement for a communications channel |
| 01/20/1994 | CA2139435A1 Remotely actuated switch and protection circuit |
| 01/19/1994 | EP0579561A1 Protection circuit for power components against overvoltages |
| 01/13/1994 | DE4222365A1 Actuator element for door lock of vehicle central locking - has linear element displaced by electric motor via gear and lead-screw with limit switch to signal on=off states |
| 01/12/1994 | CN2153129Y Resistive-capacitive overvoltage absorber |
| 01/11/1994 | US5278771 Programmable timed electrical power management device |
| 01/06/1994 | WO1994000963A1 Incandescent globe power reducer |
| 01/06/1994 | WO1994000856A1 Gas tube vent-safe device |
| 01/06/1994 | CA2139329A1 Gas tube vent-safe device |
| 01/05/1994 | EP0576836A2 Current limiting element |
| 01/05/1994 | DE4233542C1 Switch=on current limiting device for power regulation of electrical appliance - uses triac switch controlled via full-wave rectifier bridge providing pulsed DC signal including time-delayed switching transistor |
| 01/04/1994 | US5276422 Surge absorber |
| 12/29/1993 | EP0576395A1 Protection device for protecting an electrical appliance against overvoltage in the power distribution network |
| 12/29/1993 | EP0575715A2 Procedure and equipment dor avoiding inrush currents |
| 12/29/1993 | CN2151570Y Electronic timing non-damage protective switch |
| 12/29/1993 | CN2151569Y Safety unit for program-controlled telephone switch board |
| 12/28/1993 | US5274524 Programmable protection circuit and its monolithic manufacturing |
| 12/28/1993 | US5274262 Protection device |
| 12/22/1993 | CN1079846A Protection method for preventing thunder to distribution transformer |
| 12/22/1993 | CN1023277C Voltage type electronic relay |
| 12/21/1993 | US5272588 Surge protector |
| 12/21/1993 | US5272586 Technique for improving ESD immunity |
| 12/21/1993 | US5272584 Hot-plugging circuit for the interconnection of cards to boards |
| 12/21/1993 | US5272392 Current limited power semiconductor device |
| 12/21/1993 | US5272363 Bidirectional protection component |
| 12/15/1993 | CN2149702Y Protective circuit arrangement for domestic electric appliance with time accumulation function |
| 12/07/1993 | US5268592 Sequential connector |
| 12/01/1993 | EP0571598A1 Thyristor controlled series capacitor vernier control system |
| 12/01/1993 | CN2148424Y Compound type overvoltage protecting device |
| 11/23/1993 | US5264766 Wiper motor high current protection PTC |
| 11/18/1993 | EP0570310A1 Signal generator for the remote detection of functional failure of overvoltage protection devices mounted on electrical distribution lines |
| 11/18/1993 | EP0570309A1 Method for the remote detection of errors of function of lightning arresters built in distribution lines of the mains |
| 11/18/1993 | EP0569883A2 Circuit arrangement for limiting the current at make in an electronic componentry |
| 11/11/1993 | DE4307291C1 Switching-on current surge reduction system for AC load transformer - has voltage integral of at least 2 phase voltages reduced by half over initial switching-on duration with sequential switching to increased effective value. |
| 11/11/1993 | DE4215323A1 Mains socket overvoltage protection circuit - ensures complete disconnection of varistor from voltage supply on over heating of varistor and indicates defect |
| 11/10/1993 | CN2146074Y Electronic protector |
| 11/03/1993 | EP0568421A1 Protection device of an integrated circuit against electrostatic discharges |
| 11/03/1993 | CN1022657C Surface contact power connector |
| 10/28/1993 | WO1993021678A1 Improvements in surge diverters |
| 10/28/1993 | WO1993021677A1 An overload protective system |
| 10/27/1993 | EP0567293A1 Superconducting current limiting device |
| 10/27/1993 | CN2144888Y Three-phase combined type overvoltage protector |
| 10/27/1993 | CN2144887Y Breakdown luminous shape overvoltage protecting device |
| 10/27/1993 | CN2144861Y Double protecting electricity-saving silencer |
| 10/26/1993 | US5257157 Protector network for A-C equipment |
| 10/26/1993 | US5257156 Turn-on transient overcurrent response suppressor |
| 10/20/1993 | EP0470090B1 Automatically resetting protection arrangement for a telephone subscriber line interface circuit |
| 10/19/1993 | US5255146 Electrostatic discharge detection and clamp control circuit |
| 10/06/1993 | EP0563912A1 A protective device for computers and the like |
| 10/05/1993 | US5250508 Protective line insert having magnetic core surrounded by superconductor and non-superconducting electric coil, immersed in dielectric cooling fluid |
| 09/29/1993 | EP0562980A1 Auto-protected divider bridge |
| 09/22/1993 | EP0561149A2 Arrangement for current supply of an electronic unit from a three phase network |
| 09/22/1993 | CN1076559A Over-voltage protective method and apparatus for AC power supply |
| 09/21/1993 | US5247419 Low voltage switchgear |
| 09/21/1993 | US5247273 Surge absorber for protection of communication equipment connected to communication lines |
| 09/15/1993 | EP0560026A1 Device for the operation of loads on AC supply terminals |
| 09/15/1993 | EP0278585B1 Packaged solid state surge protector |
| 09/15/1993 | CN2142237Y Thunder proof wave-choking electricity-isolating device for telecommunication transmission line |
| 09/14/1993 | US5245500 270 Volt DC system with transient suppressor |
| 09/14/1993 | US5245499 Monolithic overvoltage protection device |
| 09/07/1993 | US5243648 Protective device for computers and the like |
| 09/07/1993 | US5243488 Protection circuit limiting overvoltages between two selected limits and its monolithic integration |
| 09/07/1993 | US5243487 Gravure press with crowbar circuit |
| 09/07/1993 | US5243257 Surge voltage protector |
| 09/07/1993 | CA1322022C Device enabling the restoration of the mains current in the event of a breakdown of one or more elements of a series connection |
| 08/31/1993 | US5241445 Electronic part having safeguard function |
| 08/25/1993 | CN2141141Y Conversion power supply protector for dc trolley-wire locomotives |
| 08/19/1993 | DE4214897C1 Circuit for protection of electronics against transient voltage surges - has detector stage that identifies increase and switches supply to internal arrangement having capacitor and constant current supply |
| 08/19/1993 | DE4204559A1 Limitation of switching voltage on connecting inductive load e.g. compensation reactor coil in AC loop - connecting voltage limiter during high voltage periods and disconnecting during stationary operation of load |
| 08/17/1993 | US5237483 Protector system for low voltage power feed |
| 08/11/1993 | EP0555144A1 Pump station |
| 08/11/1993 | EP0554484A1 Three-phase power supply |
| 08/11/1993 | CN2140115Y Miniature combined current-equal broad-=band power choker |
| 08/10/1993 | US5235505 Overcurrent detector |
| 08/10/1993 | US5235309 Resistive current limiter |
| 08/10/1993 | US5235215 Memory device for use in power control circuits |
| 08/05/1993 | WO1993015542A1 Overvoltage and overload current attenuator |
| 08/05/1993 | WO1993015541A1 Shunt circuit for electrostatic discharge protection |
| 08/04/1993 | EP0554191A1 Protection component for a circuit in an automobile |
| 08/03/1993 | US5233497 Overvoltage protection device |
| 08/03/1993 | US5233214 Controllable, temperature-compensated voltage limiter |