Inventor · disambiguated record
Joseph C. Engel
Also filed as: ENGEL JOSEPH C · ENGEL JOSEPH CHARLES
92 granted patents·5 pending applications·4,844 citations·filing 1974–2020
99Inventor score
Files withWESTINGHOUSE ELECTRIC CORP47EATON CORP41ENGEL JOSEPH C2ABB POWER T & D CO1ASEA BROWN BOVERI INC1
Top patents by PatentIndex Score
97 records- 0199US7319574B2Arc fault detection apparatus, method and system for an underground electrical conductorEATON CORP·Filed 2005·Granted Jan 15, 2008·82 cites·24 claims
- 0299US5691869ALow cost apparatus for detecting arcing faults and circuit breaker incorporating sameEATON CORP·Filed 1995·Granted Nov 25, 1997·252 cites·11 claims
- 0399US5224006AElectronic circuit breaker with protection against sputtering arc faults and ground faultsWESTINGHOUSE ELECTRIC CORP·Filed 1991·Granted Jun 29, 1993·366 cites·12 claims
- 0497US6720872B1Ground fault/arc fault circuit interrupter and method of testing the same with a test button and a reset buttonEATON CORP·Filed 2002·Granted Apr 13, 2004·89 cites·26 claims
- 0597US6522509B1Arc fault detection in ac electric power systemsEATON CORP·Filed 2000·Granted Feb 18, 2003·111 cites·26 claims
- 0697US6167329ADual microprocessor electronic trip unit for a circuit interrupterEATON CORP·Filed 1998·Granted Dec 26, 2000·166 cites·2 claims
- 0796US7253602B2Self-powered power bus sensor employing wireless communicationEATON CORP·Filed 2005·Granted Aug 7, 2007·62 cites·3 claims
- 0896US5384712AEnergy monitoring system for a plurality of local stations with snapshot polling from a central stationEATON CORP·Filed 1991·Granted Jan 24, 1995·147 cites·13 claims
- 0996US4351013ACircuit interrupter with multiple display and parameter entry meansWESTINGHOUSE ELECTRIC CORP·Filed 1980·Granted Sep 21, 1982·67 cites·13 claims
- 1095US5315531AEnergy monitoring system for a plurality of local stations with snapshot polling from a central stationWESTINGHOUSE ELECTRIC CORP·Filed 1992·Granted May 24, 1994·112 cites·21 claims
- 1195US4428022ACircuit interrupter with digital trip unit and automatic resetWESTINGHOUSE ELECTRIC CORP·Filed 1982·Granted Jan 24, 1984·83 cites·7 claims
- 1295US4186431ALinear light sourceWESTINGHOUSE ELECTRIC CORP·Filed 1978·Granted Jan 29, 1980·36 cites·9 claims
- 1394US6707652B2Electrical switching apparatus including glowing contact protectionEATON CORP·Filed 2002·Granted Mar 16, 2004·69 cites·6 claims
- 1494US5940256ACircuit breaker responsive to repeated in-rush currents produced by a sputtering arc faultEATON CORP·Filed 1994·Granted Aug 17, 1999·86 cites·13 claims
- 1594US5559719ADigitally controlled circuit interrupter with improved automatic selection of sampling interval for 50 Hz and 60 Hz power systemsEATON CORP·Filed 1994·Granted Sep 24, 1996·108 cites·10 claims
- 1694US4351012ACircuit interrupter with digital trip unit and means to enter trip settingsWESTINGHOUSE ELECTRIC CORP·Filed 1980·Granted Sep 21, 1982·52 cites·4 claims
- 1793US7417554B2Wireless system for one or more electrical switching apparatusEATON CORP·Filed 2006·Granted Aug 26, 2008·26 cites·24 claims
- 1892US7253640B2Arc fault detector and method for locating an arc faultEATON CORP·Filed 2003·Granted Aug 7, 2007·57 cites·31 claims
- 1992US7145322B2Self-powered power bus sensor employing wireless communicationEATON CORP·Filed 2004·Granted Dec 5, 2006·52 cites·21 claims
- 2092US5726577AApparatus for detecting and responding to series arcs in AC electrical systemsEATON CORP·Filed 1996·Granted Mar 10, 1998·90 cites·19 claims
- 2192US5600527ACircuit interrupter providing protection and waveform capture for harmonic analysisEATON CORP·Filed 1994·Granted Feb 4, 1997·92 cites·11 claims
- 2292US5420799ACircuit breaker - associated backpack unit for lower-link communication with a PC computer monitoring system and energy monitoring system using a plurality of such backpack unitsEATON CORP·Filed 1994·Granted May 30, 1995·122 cites·10 claims
- 2392US5420740AGround fault circuit interrupter with immunity to wide band noiseEATON CORP·Filed 1993·Granted May 30, 1995·90 cites·7 claims
- 2492US5017859AIntegral capacitive divider bus bar voltage measuring apparatus and combined current sensorWESTINGHOUSE ELECTRIC CORP·Filed 1989·Granted May 21, 1991·79 cites·7 claims
- 2592US4747061AAutomatic transfer switch for a wide range of source voltageWESTINGHOUSE ELECTRIC CORP·Filed 1986·Granted May 24, 1988·74 cites·7 claims
- 2692US4335437ACircuit interrupter with energy management functionsWESTINGHOUSE ELECTRIC CORP·Filed 1980·Granted Jun 15, 1982·66 cites·10 claims
- 2792US4292570AEnergy-conserving illumination systemWESTINGHOUSE ELECTRIC CORP·Filed 1979·Granted Sep 29, 1981·49 cites·6 claims
- 2891US5325315AProcess for auto calibration of a microprocessor based overcurrent protective device and apparatusWESTINGHOUSE ELECTRIC CORP·Filed 1993·Granted Jun 28, 1994·73 cites·40 claims
- 2990US6948846B2Test apparatus for power circuits of an electrical distribution deviceEATON CORP·Filed 2003·Granted Sep 27, 2005·47 cites·25 claims
- 3090US6057997ACircuit breaker responsive to repeated in-rush currents produced by a sputtering arc faultEATON CORP·Filed 1999·Granted May 2, 2000·69 cites·2 claims
- 3189US7558033B2Arc fault circuit interrupter and method of parallel and series arc fault detectionEATON CORP·Filed 2007·Granted Jul 7, 2009·20 cites·26 claims
- 3289US6175780B1Accessory network for an electronic trip unitEATON CORP·Filed 1998·Granted Jan 16, 2001·77 cites·8 claims
- 3389US6084756AApparatus for testing protection of an electric power distribution circuit by an arc fault circuit breakerEATON CORP·Filed 1999·Granted Jul 4, 2000·82 cites·15 claims
- 3489US5579194AMotor starter with dual-slope integratorEATON CORP·Filed 1994·Granted Nov 26, 1996·52 cites·8 claims
- 3588US5627716AOvercurrent protection deviceEATON CORP·Filed 1996·Granted May 6, 1997·96 cites·34 claims
- 3686US5861683APanelboard for controlling and monitoring power or energyEATON CORP·Filed 1997·Granted Jan 19, 1999·138 cites·27 claims
- 3786US5270898ASure chip plusWESTINGHOUSE ELECTRIC CORP·Filed 1990·Granted Dec 14, 1993·70 cites·11 claims
- 3886US4894796AAutomatic transfer switch with programmable displayWESTINGHOUSE ELECTRIC CORP·Filed 1986·Granted Jan 16, 1990·56 cites·13 claims
- 3986US4180841AGround fault circuit interrupter with grounded neutral protectionWESTINGHOUSE ELECTRIC CORP·Filed 1977·Granted Dec 25, 1979·34 cites·16 claims
- 4085US5627718AApparatus providing protection and metering in an ac electrical system utilizing a multi-function sampling techniqueEATON CORP·Filed 1994·Granted May 6, 1997·54 cites·13 claims
- 4185US5060166AMethod and apparatus for rapidly analyzing AC waveforms containing DC offsetsABB POWER T & D CO·Filed 1989·Granted Oct 22, 1991·52 cites·21 claims
- 4285US4912522ALight driven remote system and power supply thereforASEA BROWN BOVERI INC·Filed 1988·Granted Mar 27, 1990·79 cites·6 claims
- 4385US4335413ACircuit interrupter with remote indicator and power supplyWESTINGHOUSE ELECTRIC CORP·Filed 1980·Granted Jun 15, 1982·27 cites·10 claims
- 4484US5596473AElectrical switches with current protection interfaced with a remote station and a portable local unitEATON CORP·Filed 1995·Granted Jan 21, 1997·73 cites·4 claims
- 4584US4980794AElectromagnetic contactor with lightweight wide range current transducer with sintered powdered metal coreWESTINGHOUSE ELECTRIC CORP·Filed 1989·Granted Dec 25, 1990·32 cites·58 claims
- 4682US4016451AHigh pressure discharge lamp dimming circuit utilizing variable duty-cycle photocouplerWESTINGHOUSE ELECTRIC CORP·Filed 1975·Granted Apr 5, 1977·33 cites·4 claims
- 4780US6084758APower distribution system with circuit breakers remotely resettable by signals transmitted over the power linesEATON CORP·Filed 1998·Granted Jul 4, 2000·88 cites·13 claims
- 4880US4331997ACircuit interrupter with digital trip unit and potentiometers for parameter entryWESTINGHOUSE ELECTRIC CORP·Filed 1980·Granted May 25, 1982·37 cites·8 claims
- 4979US5418677AThermal modeling of overcurrent trip during power lossEATON CORP·Filed 1994·Granted May 23, 1995·42 cites·9 claims
- 5079US4331999ACircuit interrupter with digital trip unit and power supplyWESTINGHOUSE ELECTRIC CORP·Filed 1980·Granted May 25, 1982·34 cites·14 claims
Showing the top 50 of 97 patent records by PatentIndex Score.
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