Assignee
SMITH CORP A O
US·358 granted patents·44 pending applications·7,814 citations·filing 1974–2025
Top patents by PatentIndex Score
402 records- 0199US7932658B2Interior permanent magnet motor including rotor with flux barriersSMITH CORP A O·Filed 2008·Granted Apr 26, 2011·94 cites·65 claims
- 0298US7821175B2Stator assembly for an electric machine and method of manufacturing the sameSMITH CORP A O·Filed 2008·Granted Oct 26, 2010·38 cites·31 claims
- 0398US7690897B2Controller for a motor and a method of controlling the motorSMITH CORP A O·Filed 2006·Granted Apr 6, 2010·62 cites·15 claims
- 0498US7183741B2Switch assembly, electric machine having the switch assembly, and method of controlling the sameSMITH CORP A O·Filed 2005·Granted Feb 27, 2007·75 cites·13 claims
- 0597US10443894B2System and method for control of electric water heaterSMITH CORP A O·Filed 2016·Granted Oct 15, 2019·15 cites·18 claims
- 0697US7348706B2Stator assembly for an electric machine and method of manufacturing the sameSMITH CORP A O·Filed 2005·Granted Mar 25, 2008·36 cites·24 claims
- 0797US7042192B2Switch assembly, electric machine having the switch assembly, and method of controlling the sameSMITH CORP A O·Filed 2005·Granted May 9, 2006·43 cites·18 claims
- 0897US6989649B2Switch assembly, electric machine having the switch assembly, and method of controlling the sameSMITH CORP A O·Filed 2003·Granted Jan 24, 2006·72 cites·54 claims
- 0996US7427844B2Switch assembly, electric machine having the switch assembly, and method of controlling the sameSMITH CORP A O·Filed 2007·Granted Sep 23, 2008·38 cites·18 claims
- 1096US7332845B2Spoke permanent magnet rotorSMITH CORP A O·Filed 2006·Granted Feb 19, 2008·29 cites·33 claims
- 1196US7327118B2Electric machine and method of operating the electric machineSMITH CORP A O·Filed 2006·Granted Feb 5, 2008·41 cites·4 claims
- 1296US7268505B2Electric machine and method of operating the electric machineSMITH CORP A O·Filed 2005·Granted Sep 11, 2007·50 cites·40 claims
- 1396US4930204AMethod of forming composite tubular structureSMITH CORP A O·Filed 1989·Granted Jun 5, 1990·87 cites·8 claims
- 1496US4792320AComposite tubular structureSMITH CORP A O·Filed 1987·Granted Dec 20, 1988·101 cites·7 claims
- 1595US7923881B2Interior permanent magnet motor and rotorSMITH CORP A O·Filed 2008·Granted Apr 12, 2011·61 cites·20 claims
- 1695US7610671B2Method for assembling an electric motor using a slip fit tolerance ringSMITH CORP A O·Filed 2005·Granted Nov 3, 2009·22 cites·15 claims
- 1795US7541701B2Totally enclosed fan cooled motorSMITH CORP A O·Filed 2007·Granted Jun 2, 2009·42 cites·20 claims
- 1894US7603204B2System and method for controlling temperature of a liquid residing within a tankSMITH CORP A O·Filed 2006·Granted Oct 13, 2009·33 cites·18 claims
- 1994US6040363AMetathesis polymerizered olefin composites including sized reinforcement materialSMITH CORP A O·Filed 1998·Granted Mar 21, 2000·96 cites·21 claims
- 2094US5409254ARear suspension with aligned coil springs and twist beam axleSMITH CORP A O·Filed 1993·Granted Apr 25, 1995·129 cites·12 claims
- 2193US8035273B2Rotor assembly having two core portions each with a reduced back portionSMITH CORP A O·Filed 2007·Granted Oct 11, 2011·25 cites·22 claims
- 2293US7672751B2System and method for controlling temperature of a liquid residing within a tankSMITH CORP A O·Filed 2007·Granted Mar 2, 2010·21 cites·9 claims
- 2393US7247967B2Electric motor having a statorSMITH CORP A O·Filed 2004·Granted Jul 24, 2007·51 cites·14 claims
- 2493US7098567B2Brushless permanent magnet machine with reduced cogging and torque ripple and method of producing the sameSMITH CORP A O·Filed 2005·Granted Aug 29, 2006·21 cites·26 claims
- 2593US6291920B1Motor counter weight attachmentSMITH CORP A O·Filed 2000·Granted Sep 18, 2001·49 cites·19 claims
- 2693US4984981AHeater with flame powered logic supply circuitSMITH CORP A O·Filed 1989·Granted Jan 15, 1991·98 cites·20 claims
- 2793US4895551ADynamically balanced drive shaftSMITH CORP A O·Filed 1987·Granted Jan 23, 1990·64 cites·10 claims
- 2892US7671555B2Motor, a method of operating a motor, and a system including a motorSMITH CORP A O·Filed 2006·Granted Mar 2, 2010·25 cites·51 claims
- 2992US5308115AVehicle frame with overlapped sectionsSMITH CORP A O·Filed 1992·Granted May 3, 1994·78 cites·11 claims
- 3092US4511790AMultiple load control apparatus having load equalizationSMITH CORP A O·Filed 1982·Granted Apr 16, 1985·109 cites·16 claims
- 3192US4333002AMultiple device control apparatusSMITH CORP A O·Filed 1980·Granted Jun 1, 1982·115 cites·8 claims
- 3292US4131413ASelf-contained electric igniter with rechargeable batterySMITH CORP A O·Filed 1977·Granted Dec 26, 1978·70 cites·10 claims
- 3391US9791172B2Dual sensor combustion systemSMITH CORP A O·Filed 2015·Granted Oct 17, 2017·5 cites·27 claims
- 3491US7574120B2System and method for estimating and indicating temperature characteristics of temperature controlled liquidsSMITH CORP A O·Filed 2006·Granted Aug 11, 2009·18 cites·15 claims
- 3591US7143503B2Brushless permanent magnet machine with axial modules of rotor magnetization skew and method of producing the sameSMITH CORP A O·Filed 2005·Granted Dec 5, 2006·20 cites·43 claims
- 3691US6940198B2Brushless permanent magnet machine with reduced cogging and torque ripple and method of producing the sameSMITH CORP A O·Filed 2003·Granted Sep 6, 2005·33 cites·34 claims
- 3791US6867525B2Brushless permanent magnet machine with axial modules of rotor magnetization skew and method of producing the sameSMITH CORP A O·Filed 2003·Granted Mar 15, 2005·36 cites·32 claims
- 3891US4958118AWide range, self-starting single phase motor speed controlSMITH CORP A O·Filed 1989·Granted Sep 18, 1990·80 cites·16 claims
- 3991US4286573AWater heater heat trap assemblySMITH CORP A O·Filed 1980·Granted Sep 1, 1981·64 cites·4 claims
- 4091US4161667AFlexible mounting of electric motorsSMITH CORP A O·Filed 1977·Granted Jul 17, 1979·60 cites·3 claims
- 4190US10753644B2Water heaterSMITH CORP A O·Filed 2017·Granted Aug 25, 2020·6 cites·16 claims
- 4290US7737598B2Electric motor having a statorSMITH CORP A O·Filed 2007·Granted Jun 15, 2010·18 cites·20 claims
- 4390US7709991B2Rotor assembly for an electric machine including a vibration damping member and method of manufacturing sameSMITH CORP A O·Filed 2005·Granted May 4, 2010·19 cites·27 claims
- 4490US7687965B2Electric machine, stator assembly for an electric machine, and method of manufacturing the sameSMITH CORP A O·Filed 2007·Granted Mar 30, 2010·17 cites·15 claims
- 4590US7613855B2Modular control system and method for water heatersSMITH CORP A O·Filed 2005·Granted Nov 3, 2009·24 cites·16 claims
- 4690US7514887B2Electrical machine and method of controlling the sameSMITH CORP A O·Filed 2006·Granted Apr 7, 2009·21 cites·30 claims
- 4790US4975560AApparatus for powering the corrosion protection system in an electric water heaterSMITH CORP A O·Filed 1989·Granted Dec 4, 1990·46 cites·5 claims
- 4890US4817564AWater heater constructionSMITH CORP A O·Filed 1988·Granted Apr 4, 1989·46 cites·22 claims
- 4990US4672250ADrive motor bearing apparatusSMITH CORP A O·Filed 1984·Granted Jun 9, 1987·78 cites·3 claims
- 5090US4546300AElectric power supply connection for submersible capacitor-start motor apparatusSMITH CORP A O·Filed 1983·Granted Oct 8, 1985·89 cites·3 claims
Showing the top 50 of 402 patent records by PatentIndex Score.
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