Inventor · disambiguated record
John D. Harnden, Jr.
Also filed as: HARNDEN JR JOHN D
29 granted patents·1,156 citations·filing 1975–1990
98Inventor score
Top patents by PatentIndex Score
29 records- 0198US4742263APiezoelectric switchPACIFIC BELL·Filed 1987·Granted May 3, 1988·153 cites·5 claims
- 0296US4559496ALCD Hook-on digital ammeterGEN ELECTRIC·Filed 1984·Granted Dec 17, 1985·103 cites·8 claims
- 0396US4068281AThermally responsive metal oxide varistor transient suppression circuitGEN ELECTRIC·Filed 1976·Granted Jan 10, 1978·57 cites·9 claims
- 0495US4819126APiezoelectic relay module to be utilized in an appliance or the likePACIFIC BELL·Filed 1988·Granted Apr 4, 1989·76 cites·10 claims
- 0594US4626698AZero crossing synchronous AC switching circuits employing piezoceramic bender-type switching devicesGEN ELECTRIC·Filed 1984·Granted Dec 2, 1986·53 cites·41 claims
- 0692US4670682APiezoelectric ceramic switching devices and systems and method of making the sameGEN ELECTRIC·Filed 1984·Granted Jun 2, 1987·44 cites·40 claims
- 0791US4145708APower module with isolated substrates cooled by integral heat-energy-removal meansGEN ELECTRIC·Filed 1977·Granted Mar 20, 1979·72 cites·12 claims
- 0888US4764714AElectronic starting circuit for an alternating current motorGEN ELECTRIC·Filed 1987·Granted Aug 16, 1988·50 cites·11 claims
- 0988US4697118APiezoelectric switchGEN ELECTRIC·Filed 1986·Granted Sep 29, 1987·36 cites·26 claims
- 1088US4546658APiezoelectric force/pressure sensorGEN ELECTRIC·Filed 1984·Granted Oct 15, 1985·51 cites·20 claims
- 1188US4360847ADiode assisted relay contactorGEN ELECTRIC·Filed 1981·Granted Nov 23, 1982·40 cites·25 claims
- 1287US4755706APiezoelectric relays in sealed enclosuresGEN ELECTRIC·Filed 1986·Granted Jul 5, 1988·35 cites·16 claims
- 1384US4310837AElectrical device termination high temperature indicatorGEN ELECTRIC·Filed 1980·Granted Jan 12, 1982·42 cites·30 claims
- 1483US4584525ACurrent-shunt system for known conductorsGEN ELECTRIC·Filed 1983·Granted Apr 22, 1986·39 cites·14 claims
- 1583US4561314AMagnetoelastic force/pressure sensorGEN ELECTRIC·Filed 1983·Granted Dec 31, 1985·37 cites·25 claims
- 1678US4489234ARadiant-energy heating and/or cooking apparatus with honeycomb coverplateGEN ELECTRIC·Filed 1983·Granted Dec 18, 1984·46 cites·12 claims
- 1775US4438396ALow cost volt/ampere meter with liquid crystal displayGEN ELECTRIC·Filed 1981·Granted Mar 20, 1984·27 cites·23 claims
- 1874US4678957APiezoelectric ceramic switching devices and systems and methods of making the sameGEN ELECTRIC·Filed 1986·Granted Jul 7, 1987·20 cites·10 claims
- 1974US4658154APiezoelectric relay switching circuitGEN ELECTRIC·Filed 1985·Granted Apr 14, 1987·20 cites·18 claims
- 2074US4070701AInverter power supplyGEN ELECTRIC·Filed 1976·Granted Jan 24, 1978·19 cites·32 claims
- 2172US5235159AControl system, method of operating a heating apparatus and controlled heating apparatusGEN ELECTRIC·Filed 1990·Granted Aug 10, 1993·37 cites·163 claims
- 2272US4060783AMagnetic circuit and method of makingGEN ELECTRIC·Filed 1975·Granted Nov 29, 1977·16 cites·13 claims
- 2359US4714847AAdvanced piezoeceramic power switching devices employing protective gastight enclosure and method of manufactureGEN ELECTRIC·Filed 1984·Granted Dec 22, 1987·13 cites·27 claims
- 2456US4300392AInterchangeable networks with non-linear sensors and method of producing such networksGEN ELECTRIC·Filed 1980·Granted Nov 17, 1981·19 cites·11 claims
- 2555US4967568AControl system, method of operating an atmospheric cooling apparatus and atmospheric cooling apparatusGEN ELECTRIC·Filed 1989·Granted Nov 6, 1990·25 cites·187 claims
- 2654US4471300ALDC Hook-on digital ammeterGEN ELECTRIC·Filed 1981·Granted Sep 11, 1984·12 cites·8 claims
- 2752US4689517AAdvanced piezoceramic power switching devices employing protective gastight enclosure and method of manufactureGEN ELECTRIC·Filed 1986·Granted Aug 25, 1987·9 cites·4 claims
- 2840US4669160AMethod for prepolarizing and centering a piezoelectric ceramic switching deviceGEN ELECTRIC·Filed 1986·Granted Jun 2, 1987·4 cites·2 claims
- 2932US4680840AMethod for prepolarizing and centering a piezoceramic power switching deviceGEN ELECTRIC·Filed 1986·Granted Jul 21, 1987·1 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →