| Patents for H02H 9 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection (21,232) |
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| 02/28/2002 | WO2002017458A1 Ground fault interrupter |
| 02/28/2002 | WO2002017456A2 Protective relay |
| 02/28/2002 | US20020024792 Overvoltage-protection device |
| 02/28/2002 | US20020024791 Integrated electrostatic discharge and overcurrent device |
| 02/28/2002 | US20020024787 Polymer fuse and filter apparatus |
| 02/28/2002 | US20020024784 Protective relay |
| 02/28/2002 | DE10040231A1 Kurzschluss-Schutzsystem für Schiffe Short circuit protection system for ships |
| 02/28/2002 | CA2420421A1 Protective relay |
| 02/28/2002 | CA2355485A1 Surge protection device |
| 02/27/2002 | EP1181760A2 Devices and methods for protection of rechargeable elements |
| 02/27/2002 | EP0998776B1 Control circuit for a direct current motor |
| 02/27/2002 | CN1080015C Improved electrophoresis circuit for electronic products |
| 02/27/2002 | CN1080014C Self-oscillation circuit with adjustable off delay time |
| 02/26/2002 | US6351363 Multi-stage polydiode-based electrostatic discharge protection circuit |
| 02/26/2002 | US6351362 Protection circuit for an LCD controller IC |
| 02/26/2002 | US6351361 Overcurrent protection device |
| 02/21/2002 | WO2002015539A1 Filter system and method to suppress interference imposed upon a frequency-division multiplexed channel |
| 02/21/2002 | WO2002015361A1 Instant tripping device for short circuits in electrical dc and ac networks of surface and underwater vessels, especially combat vessels, and offshore installations |
| 02/21/2002 | WO2002015360A1 An electrode arrangement for circuit energy conditioning |
| 02/21/2002 | WO2002015358A1 Method and device for localising single-pole earth faults |
| 02/21/2002 | WO2002015355A2 Method and device for identifying and localising high-ohm, single-pole earth faults |
| 02/21/2002 | WO2002014736A1 Cryostat for electrical devices such as superconducting current limiters and electrical machines such as transformers, motors, generators and electrical magnets with a superconducting winding |
| 02/21/2002 | WO2001084687A3 Sensitive ground fault detection system for use in compensated electric power distribution networks |
| 02/21/2002 | DE10038192A1 Current limiting device e.g. for electric motor, has voltage-dependent resistance element in parallel with one or more high-temperature superconductive structures |
| 02/20/2002 | CN2478272Y Overvoltage protector of leakage protector |
| 02/19/2002 | US6349022 Latching protection circuit |
| 02/19/2002 | CA2015967C Packaged solid state surge protector |
| 02/14/2002 | US20020019315 Electrical power transmission system using superconductors |
| 02/14/2002 | US20020018330 Series protection device for a telephone line |
| 02/14/2002 | US20020018327 Multi-winding fault-current limiter coil with flux shaper and cooling for use in an electrical power transmission/distribution application |
| 02/14/2002 | US20020017974 Electrical transformer |
| 02/13/2002 | EP1012942B1 Circuit arrangement for protecting integrated circuits against electrostatic discharges |
| 02/12/2002 | US6347028 Load control system having an overload protection circuit |
| 02/07/2002 | US20020015273 Protection of intrinsically sage circuits |
| 02/07/2002 | US20020015272 Switch device and overcurrent controlling method |
| 02/07/2002 | DE10035634A1 Supraleitungseinrichtung mit induktiver Strombegrenzereinheit unter Verwendung von Hoch-Tc-Supraleitermaterial Superconducting device with inductive current limiter unit using high-Tc superconductor material |
| 02/06/2002 | EP1177490A1 Voltage regulator provided with a current limiter |
| 02/06/2002 | CN2476125Y Safety lightning arrester for TV set |
| 02/06/2002 | CN1334984A Current limiting device |
| 02/06/2002 | CN1334629A Over-voltage protector of power supply |
| 02/06/2002 | CN1334628A Over-voltage and over-current warming circuit for protection unit of main distribution frame |
| 02/06/2002 | CN1078966C Rechargeable battery with built-in safety circuit for portable electric apparatus |
| 02/05/2002 | US6344958 Overvoltage protection circuit with overvoltage removal sensing |
| 02/05/2002 | US6344956 Oxide bulk superconducting current limiting element current |
| 01/31/2002 | WO2002009253A1 System for overvoltage protection |
| 01/31/2002 | WO2002009129A1 Superconducting device with inductive current limiter using a high-tc superconducting material |
| 01/31/2002 | WO2000059094A9 Devices and methods for protection of rechargeable elements |
| 01/31/2002 | US20020012261 A.C./D.C. converter |
| 01/31/2002 | US20020011647 Current-limiting device |
| 01/30/2002 | EP1176688A1 AC to DC converter |
| 01/30/2002 | CN2475206Y Automatic cut-off type telephone protector for thunder and lightning |
| 01/29/2002 | US6342994 Protective device against excessive currents, in particular for resettable protection of a controlled switch |
| 01/24/2002 | WO2002007284A1 Methods and systems for improving esd clamp response time |
| 01/24/2002 | DE10122851A1 Automatische Zündänderung, wenn Motorleitungen bei einem Soft-Starter für einen Dreiecksmotor vertauscht sind Automatic Zündänderung if motor leads are reversed with a soft starter for a delta motor |
| 01/23/2002 | EP1173873A1 Self-recovering current-limiting device with liquid metal |
| 01/23/2002 | CN2473790Y Fall-down type lightning arrester |
| 01/23/2002 | CN1078396C Connector of load in consumer electric network |
| 01/17/2002 | WO2002005400A1 Fault-current limiter with multi-winding coil |
| 01/17/2002 | DE10132415A1 Circuit protection for fail-safe circuit used in explosive area uses monitoring of load voltage for selective interruption |
| 01/16/2002 | EP0850486B1 Electrical switch |
| 01/16/2002 | CN1331830A Electrical power transmission system using superconductors |
| 01/16/2002 | CN1331517A Integrated transmitting/receiving radio frequency device |
| 01/15/2002 | US6339194 Supported superconductor |
| 01/15/2002 | CA2221803C Transformerless conditioning of a power distribution system |
| 01/10/2002 | US20020003687 Current limiter with electric valves for limiting the short-circuit current in an electric power circuit |
| 01/09/2002 | EP1169763A1 Protective circuit for an electronic device |
| 01/09/2002 | CN2471004Y Crowbar device of neutral point directly grounding system |
| 01/09/2002 | CN1330441A High power current limiter |
| 01/09/2002 | CN1077734C New lightening-protective method for distribution transformer and low voltage power network |
| 01/08/2002 | US6337785 Fault current limiter |
| 01/03/2002 | US20020002426 Intrinsically safe communication and control system for use in hazardous locations including satalite box and console with monitor and backlit each is intrinsically safe |
| 01/03/2002 | US20020001160 Overvoltage protection device |
| 01/03/2002 | US20020000568 Two-terminal semiconductor overcurrent limiter |
| 01/03/2002 | DE10109172A1 Current limiter used in an electrical circuit comprises a silicon substrate, an n-conducting layer, n+ layers formed on opposite surfaces of the n- conducting layer, and electrodes formed on opposite surfaces of the substrate |
| 01/03/2002 | DE10029853A1 Circuit for reducing contact current during contact bounce in switch device e.g. for use in motor vehicles, has drop resistor which receives switch-on current until parallel switch responds |
| 01/02/2002 | EP1168644A2 Transmission/reception integrated radio-frequency apparatus |
| 01/02/2002 | EP1168560A2 High electrical power current limiter being useful in electrical power system |
| 01/02/2002 | EP1168449A2 Zweipol-halbleiter-überstromschutz |
| 01/02/2002 | EP1166420A1 Safety barrier for limiting current and voltage |
| 01/02/2002 | EP1166370A2 Superconductor composite wire for current limiters |
| 01/02/2002 | CN2469567Y Outdoor antenna lightning protector for TV set |
| 01/02/2002 | CN1329758A Resistive current-limiting device with at least one printed conductor covered by insulating layer by using high voltage superconductive material |
| 01/02/2002 | CN1077339C Coaxial surge arrestor/power extractor assembly |
| 01/01/2002 | US6335654 Inrush current control circuit |
| 01/01/2002 | US6335608 Fault protection circuitry for motor controllers |
| 01/01/2002 | CA2198096C A self-excited oscillator type switch power supply with overcurrent protection |
| 12/27/2001 | US20010055186 Zero threshold surge suppressor |
| 12/27/2001 | US20010054873 Electric motor control |
| 12/27/2001 | US20010054760 Semiconductor integrated circuit |
| 12/26/2001 | CN1328689A Multilayer conductive polymer device and method of manufacturing same |
| 12/26/2001 | CN1076920C Remote actuated switch and protection circuit |
| 12/26/2001 | CN1076904C Durable approach switch with automatic overload protection function |
| 12/26/2001 | CN1076896C Current limiting device |
| 12/20/2001 | WO2001097353A1 Overcurrent protection circuit |
| 12/20/2001 | DE19945869A1 Multichannel current limiter for redundant electrical supply device, has current limiter circuit per channel with control inputs for varying limit value and signal output for signal representing current in channel |
| 12/20/2001 | DE10029418A1 Excess current protection circuit has current limiter connected in series with switch element with steep current-voltage characteristic for low voltages and flat characteristic for high voltages |
| 12/19/2001 | CN1076531C Electronic protection system and circuit comprising said system |
| 12/19/2001 | CA2350984A1 High electrical power current limiter being useful in electrical power system |
| 12/18/2001 | US6331764 Supplemental battery overcharge protection device |
| 12/18/2001 | US6331763 Devices and methods for protection of rechargeable elements |