| Patents for H02H 3 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection (33,031) |
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| 07/14/2009 | US7561392 Intrinsically safe data transmission device |
| 07/14/2009 | US7561391 Input voltage sensing circuit |
| 07/14/2009 | US7561389 Alternating-current voltage output apparatus |
| 07/14/2009 | US7561388 Fail-open surge protection system |
| 07/14/2009 | US7560948 Circuit for minimizing or eliminating pulse anomalies in human body model electrostatic discharge tests |
| 07/14/2009 | US7560912 Hybrid filter for high slew rate output current application |
| 07/14/2009 | US7560900 Rechargeable lithium battery protection device |
| 07/14/2009 | CA2464323C Directional element to determine faults on ungrounded power systems |
| 07/14/2009 | CA2335895C Circuit protection device with half cycle self test |
| 07/09/2009 | WO2009052305A3 Adaptive power management system for aircraft galleys |
| 07/09/2009 | US20090177839 Method for analyzing performance information |
| 07/09/2009 | US20090174981 Nonvolatile status indicator switch |
| 07/09/2009 | US20090174980 Load Driving and Diagnosis System and Control Method |
| 07/09/2009 | US20090174979 Current Limiter Having Overload Indication Function |
| 07/09/2009 | US20090174977 Hardware overvoltage disconnecting circuit |
| 07/09/2009 | US20090174976 Current differential relay device, signal processing method thereof and power transmission line protection system |
| 07/09/2009 | US20090174972 High-Power Ultracapacitor Energy Storage Pack and Method of Use |
| 07/09/2009 | DE102005006867B4 Halbleiterschalter mit Spannungsüberwachung Semiconductor switch with voltage monitoring |
| 07/08/2009 | EP2076951A2 System and method for detection multiple current limits |
| 07/08/2009 | EP1634172B1 Fault tolerant data storage circuit |
| 07/08/2009 | CN201270408Y Detection and protection apparatus for leakage |
| 07/08/2009 | CN201270407Y Measurement and control apparatus for microcomputer synthetic protection |
| 07/08/2009 | CN101479905A An earth leakage protection device with time alert feature |
| 07/08/2009 | CN101479904A A time alert device for use together with an earth leakage protection device |
| 07/08/2009 | CN101478140A Self-disengaging three phase combined over-voltage protector |
| 07/08/2009 | CN101478139A Multi-path large power velocity modulated valve overcurrent real-time protection apparatus having on-line self-detection function |
| 07/08/2009 | CN101478138A Overcurrent protection circuit and method |
| 07/08/2009 | CN100512607C Method for manufacture of laminated ceramic substrate and multilayer ceramic substrate |
| 07/08/2009 | CN100511906C Electronic trip unit, protection method used therein and selection system comprising the electronic trip unit |
| 07/08/2009 | CN100511905C Method and apparatus for ground fault protection |
| 07/08/2009 | CN100511551C Protective switch device comprising a differential current triggering device |
| 07/07/2009 | US7558038 Field upgradeable circuit breaker firmware and programmer therefor |
| 07/07/2009 | US7558037 Over current protection circuit and method |
| 07/07/2009 | US7558035 Anomaly control device for a dual fan of computer |
| 07/07/2009 | US7558034 Bi-directional ground fault circuit interrupter |
| 07/07/2009 | US7558033 Arc fault circuit interrupter and method of parallel and series arc fault detection |
| 07/07/2009 | US7558031 Intelligent automatic bypass for a motor control device |
| 07/07/2009 | US7557723 System and method for evaluating ground-fault circuit interrupters |
| 07/02/2009 | WO2009080865A1 Control of operation of protection relay |
| 07/02/2009 | US20090168284 Circuit arrangement for detecting undervoltage in an energy source |
| 07/02/2009 | US20090168283 Voltage control circuit |
| 07/02/2009 | US20090168277 Series arc fault current interrupter apparatus |
| 07/02/2009 | US20090168272 Protective circuitry for electronic device |
| 07/02/2009 | US20090167249 Method for verifying smart battery failures by measuring input charging voltage and associated systems |
| 07/01/2009 | EP2074438A1 Solar inverter and plant for converting solar energy into electrical energy |
| 07/01/2009 | EP1290556B1 Fast swapping of processors in a data processing system |
| 07/01/2009 | CN201266829Y Residual current type electric detector for monitoring fire |
| 07/01/2009 | CN201266828Y 多功能电器 Multifunctional Electric |
| 07/01/2009 | CN201266827Y Microcomputer comprehensive protector for mining |
| 07/01/2009 | CN201266826Y Electric fire intelligent protector |
| 07/01/2009 | CN101473505A Earthing fault breaker with end-to-life protection function |
| 07/01/2009 | CN101471557A Digital current differential protection relay |
| 07/01/2009 | CN101471556A Under-voltage protection circuit |
| 07/01/2009 | CN101471555A Safety master |
| 07/01/2009 | CN100508326C Device for the prevention of serious faults in electrical mains supply networks |
| 06/30/2009 | US7554785 Lightning damage protection for composite aircraft |
| 06/30/2009 | US7554784 Surge detection circuit |
| 06/30/2009 | US7554783 High-power foldback mechanism in system for providing power over communication link |
| 06/30/2009 | US7554782 Safety PLC |
| 06/30/2009 | US7554454 Apparatus and method for simultaneously detecting the power state of a plurality of circuit breaker switches |
| 06/30/2009 | US7554318 Transient reversing voltage detecting circuit |
| 06/25/2009 | WO2009079591A1 Fault current limiter incorporating a superconducting article |
| 06/25/2009 | WO2009078075A1 Aerogenerator system |
| 06/25/2009 | WO2009077214A1 Drive system and associated control method |
| 06/25/2009 | WO2009076991A1 Fault direction determination |
| 06/25/2009 | WO2009076769A1 A method and system for protecting an electrical power transmission network |
| 06/25/2009 | WO2009076697A1 Method and apparatus for detecting a fault in a neutral return line of an electrical network |
| 06/25/2009 | US20090161282 Transient protection at a line interface |
| 06/25/2009 | US20090161281 Capacitor sharing surge protection circuit |
| 06/25/2009 | US20090161278 Short-circuit protection circuit |
| 06/25/2009 | US20090161277 Method and device for preventing damage to a semiconductor switch circuit during a failure |
| 06/25/2009 | US20090161275 Integrated controlling chip |
| 06/25/2009 | US20090161273 High voltage tolerant electrostatic discharge protection circuit |
| 06/25/2009 | US20090161271 Novel circuit interrupting device with interconnecting reset and test buttons |
| 06/25/2009 | US20090161270 Industrial arc fault circuit interrupter and method of detecting arcing conditions |
| 06/25/2009 | US20090160664 Power supply and power cord for max power setting |
| 06/25/2009 | CA2708067A1 Method and apparatus for detecting a fault in a neutral return line of an electrical network |
| 06/25/2009 | CA2697236A1 Wind turbine generator |
| 06/24/2009 | EP1384303B1 Electric power supply with a safety cut-off |
| 06/24/2009 | CN201263081Y Electric leakage circuit breaker |
| 06/24/2009 | CN201263080Y Phase-lack non-deenergize device |
| 06/24/2009 | CN201263079Y Under-voltage protection circuit, power supply circuit and television set |
| 06/24/2009 | CN201263078Y Integrated equipment of user demarcation circuit breaker |
| 06/24/2009 | CN101467322A Residual current device having voltage dependent and voltage independent modes of operation |
| 06/24/2009 | CN101465537A Lightning proof device for computer |
| 06/24/2009 | CN101465536A Automatic judgment unit corrector for inverse connection of phase line zero line |
| 06/24/2009 | CN101465535A Output voltage short circuit protection circuit |
| 06/24/2009 | CN101465534A Circuit breaker |
| 06/24/2009 | CN100505462C Leakage circuit breaker |
| 06/24/2009 | CN100505461C Protection circuit for a switched mode power supply |
| 06/24/2009 | CN100505460C Electric power device and power source control method |
| 06/24/2009 | CN100505459C Electric power saving protector |
| 06/24/2009 | CN100505458C Fuse circuit |
| 06/24/2009 | CN100505457C Dual AND-OR protection outlet fault-tolerant mechanism |
| 06/24/2009 | CN100505456C Warning processing circuit |
| 06/24/2009 | CN100504709C Overcurrent detecting circuit and regulator having the same |
| 06/23/2009 | US7551417 Thin film circuit substrate, piezoelectric speaker device, display device, and sound-generating display device |
| 06/23/2009 | US7551416 Power supply equipped with an independent overload protection mechanism |
| 06/23/2009 | US7551415 Repair circuitry with an enhanced ESD protection device |
| 06/23/2009 | US7551412 Wiring fault correction circuit |