Inventor · disambiguated record
Edward K. Howell
Also filed as: HOWELL EDWARD K · HOWELL EDWARD KEITH
63 granted patents·2,057 citations·filing 1974–2007
99Inventor score
Top patents by PatentIndex Score
63 records- 0198US7643256B2Electromechanical switching circuitry in parallel with solid state switching circuitry selectively switchable to carry a load appropriate to such circuitryGEN ELECTRIC·Filed 2006·Granted Jan 5, 2010·69 cites·24 claims
- 0298US4723187ACurrent commutation circuitGEN ELECTRIC·Filed 1986·Granted Feb 2, 1988·105 cites·31 claims
- 0398US4583146AFault current interrupterGEN ELECTRIC·Filed 1984·Granted Apr 15, 1986·96 cites·5 claims
- 0498US4288833ALightning arrestorGEN ELECTRIC·Filed 1979·Granted Sep 8, 1981·119 cites·13 claims
- 0597US4168514ACombination circuit breaker-lightning arrestorGEN ELECTRIC·Filed 1977·Granted Sep 18, 1979·63 cites·16 claims
- 0697US4001646AGround fault circuit interrupter utilizing a single transformerGEN ELECTRIC·Filed 1975·Granted Jan 4, 1977·80 cites·19 claims
- 0795US4297741ARate sensing instantaneous trip mode networkGEN ELECTRIC·Filed 1979·Granted Oct 27, 1981·69 cites·10 claims
- 0894US4961100ABidirectional field effect semiconductor device and circuitGEN ELECTRIC·Filed 1988·Granted Oct 2, 1990·100 cites·7 claims
- 0994US4700256ASolid state current limiting circuit interrupterGEN ELECTRIC·Filed 1986·Granted Oct 13, 1987·62 cites·4 claims
- 1094US4408186APower line communication over ground and neutral conductors of plural residential branch circuitsGEN ELECTRIC·Filed 1981·Granted Oct 4, 1983·122 cites·15 claims
- 1194US4266259ALong-time and short-time overcurrent signal processor for circuit breaker static trip unitsGEN ELECTRIC·Filed 1979·Granted May 5, 1981·63 cites·17 claims
- 1294US4150411AGround fault circuit interrupter utilizing a single transformerGEN ELECTRIC·Filed 1977·Granted Apr 17, 1979·61 cites·20 claims
- 1394US3953766AGround fault circuit interrupter and electronic module thereforGEN ELECTRIC·Filed 1974·Granted Apr 27, 1976·60 cites·24 claims
- 1493US5164872ALoad circuit commutation circuitGEN ELECTRIC·Filed 1991·Granted Nov 17, 1992·85 cites·7 claims
- 1593US4115829AOvercurrent and ground fault responsive trip unit for circuit breakersGEN ELECTRIC·Filed 1977·Granted Sep 19, 1978·54 cites·12 claims
- 1692US4636907AArcless circuit interrupterGEN ELECTRIC·Filed 1985·Granted Jan 13, 1987·78 cites·22 claims
- 1792US4631621AGate turn-off control circuit for a solid state circuit interrupterGEN ELECTRIC·Filed 1985·Granted Dec 23, 1986·46 cites·7 claims
- 1891US3973171AGround fault circuit interrupting device with grounded neutral detectionGEN ELECTRIC·Filed 1975·Granted Aug 3, 1976·47 cites·8 claims
- 1989US7542250B2Micro-electromechanical system based electric motor starterGEN ELECTRIC·Filed 2007·Granted Jun 2, 2009·19 cites·28 claims
- 2089US4271444AGround fault trip mode network for static trip circuit breakersGEN ELECTRIC·Filed 1979·Granted Jun 2, 1981·41 cites·18 claims
- 2188US4288769AAmbient temperature responsive trip device for static trip circuit breakersGEN ELECTRIC·Filed 1979·Granted Sep 8, 1981·26 cites·13 claims
- 2286US4433326APower line communication system using the neutral and ground conductors of a residential branch circuitGEN ELECTRIC·Filed 1981·Granted Feb 21, 1984·62 cites·13 claims
- 2385US4675776ABistable undervoltage release circuit for circuit breakersGEN ELECTRIC·Filed 1984·Granted Jun 23, 1987·25 cites·14 claims
- 2484US3986152ANegative impedance networkGEN ELECTRIC·Filed 1975·Granted Oct 12, 1976·22 cites·4 claims
- 2583US5339210ADC circuit interrupterGEN ELECTRIC·Filed 1992·Granted Aug 16, 1994·40 cites·5 claims
- 2683US4271447APower supply for circuit breaker static trip unitGEN ELECTRIC·Filed 1979·Granted Jun 2, 1981·30 cites·8 claims
- 2773US4631622AMultiple static trip circuit breaker coordinationGEN ELECTRIC·Filed 1984·Granted Dec 23, 1986·26 cites·5 claims
- 2872US7473859B2Gating voltage control system and method for electrostatically actuating a micro-electromechanical deviceGEN ELECTRIC·Filed 2007·Granted Jan 6, 2009·7 cites·18 claims
- 2972US4652962AHigh speed current limiting circuit interrupterGEN ELECTRIC·Filed 1986·Granted Mar 24, 1987·28 cites·7 claims
- 3072US4429340ABargraph displays for static trip circuit breakersGEN ELECTRIC·Filed 1983·Granted Jan 31, 1984·23 cites·3 claims
- 3172US3950677AHousing mounting arrangement for ground fault circuit interrupterGEN ELECTRIC·Filed 1974·Granted Apr 13, 1976·15 cites·7 claims
- 3271US4645889AVaristor quenched arc chute for current limiting circuit interruptersGEN ELECTRIC·Filed 1986·Granted Feb 24, 1987·17 cites·5 claims
- 3368US4609839ANoise inverter circuit for a power line communication systemGEN ELECTRIC·Filed 1984·Granted Sep 2, 1986·26 cites·7 claims
- 3467US4345289AGround fault circuit interrupting device with improved thyristor triggeringGEN ELECTRIC·Filed 1981·Granted Aug 17, 1982·23 cites·7 claims
- 3567US4216516APortable ground fault protectorGEN ELECTRIC·Filed 1978·Granted Aug 5, 1980·17 cites·4 claims
- 3666US4644309AHigh speed contact driver for circuit interruption deviceGEN ELECTRIC·Filed 1986·Granted Feb 17, 1987·14 cites·6 claims
- 3765US4638244AGround connection monitorGEN ELECTRIC·Filed 1984·Granted Jan 20, 1987·18 cites·13 claims
- 3864US4658227AHigh speed magnetic contact driverGEN ELECTRIC·Filed 1986·Granted Apr 14, 1987·14 cites·17 claims
- 3963US4639933ASteering logic circuit for a digital data transceiverGEN ELECTRIC·Filed 1985·Granted Jan 27, 1987·26 cites·6 claims
- 4061US4636906ASolid state circuit interruption employing a stored charge power transistorGEN ELECTRIC·Filed 1985·Granted Jan 13, 1987·12 cites·8 claims
- 4160US4583232ACarrier current digital data transceiverGEN ELECTRIC·Filed 1984·Granted Apr 15, 1986·19 cites·20 claims
- 4259US4428019AGround fault circuit interrupting device with improved integrated circuit power supplyGEN ELECTRIC·Filed 1981·Granted Jan 24, 1984·17 cites·5 claims
- 4355US4598187ACurrent limiting circuit breakerGEN ELECTRIC·Filed 1984·Granted Jul 1, 1986·8 cites·11 claims
- 4454US7091871B2Electrical hazard detection systemHOWELL EDWARD KEITH·Filed 2004·Granted Aug 15, 2006·11 cites·25 claims
- 4552US4717796ALow voltage vacuum circuit interrupterGEN ELECTRIC·Filed 1987·Granted Jan 5, 1988·8 cites·10 claims
- 4651US4725701ALow voltage vacuum circuit interrupterGEN ELECTRIC·Filed 1987·Granted Feb 16, 1988·8 cites·8 claims
- 4751US4620122APiezoelectric contact driver for circuit interruptersGEN ELECTRIC·Filed 1985·Granted Oct 28, 1986·8 cites·1 claims
- 4850US4274121ATarget circuit for circuit breaker static trip unitGEN ELECTRIC·Filed 1979·Granted Jun 16, 1981·9 cites·15 claims
- 4948US4578653AFrequency selective filter circuitGEN ELECTRIC·Filed 1984·Granted Mar 25, 1986·9 cites·11 claims
- 5048US3963959AGround fault circuit interrupting device and differential current sensor thereforGEN ELECTRIC·Filed 1975·Granted Jun 15, 1976·8 cites·11 claims
Showing the top 50 of 63 patent records by PatentIndex Score.
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