Inventor · disambiguated record
Michael D. Geren
Also filed as: GEREN MICHAEL · GEREN MICHAEL D
25 granted patents·1 pending application·587 citations·filing 1996–2017
97Inventor score
Top patents by PatentIndex Score
26 records- 0195US9843220B2Method and apparatus for operating an internal charger system of a portable electronic deviceMOTOROLA SOLUTIONS INC·Filed 2015·Granted Dec 12, 2017·25 cites·8 claims
- 0290US7068012B1Atmospheric explosive battery protection circuit having a robust protection systemMOTOROLA INC·Filed 2005·Granted Jun 27, 2006·51 cites·17 claims
- 0387US6879133B1Battery protection circuitMOTOROLA INC·Filed 2004·Granted Apr 12, 2005·67 cites·20 claims
- 0485US9209676B2Method and apparatus for charging batteries having different voltage ranges with a single conversion chargerMOTOROLA SOLUTIONS INC·Filed 2012·Granted Dec 8, 2015·10 cites·17 claims
- 0578US6819083B1Dual use thermistor for battery cell thermal protection and battery pack overcharge/undercharge protectionMOTOROLA INC·Filed 2003·Granted Nov 16, 2004·38 cites·18 claims
- 0676US8659263B2Power supply circuit having low idle power dissipationOGLESBEE JOHN W·Filed 2010·Granted Feb 25, 2014·6 cites·20 claims
- 0776US6127804ALithium ion charging means and method using ionic relaxation controlFiled 1999·Granted Oct 3, 2000·71 cites·9 claims
- 0874US6903533B1Power fault battery protection circuitMOTOROLA INC·Filed 2003·Granted Jun 7, 2005·37 cites·18 claims
- 0972US5969508ABattery charging method using battery circuitry impedence measurement to determine optimum charging voltageMOTOROLA INC·Filed 1998·Granted Oct 19, 1999·61 cites·10 claims
- 1070US6307758B1Transformer secondary disconnectMOTOROLA INC·Filed 2000·Granted Oct 23, 2001·16 cites·6 claims
- 1167US6771051B2Thermally limited battery protection and charging circuitMOTOROLA INC·Filed 2002·Granted Aug 3, 2004·23 cites·13 claims
- 1267US6100664ASub-miniature high efficiency battery charger exploiting leakage inductance of wall transformer power supply, and method thereforMOTOROLA INC·Filed 1999·Granted Aug 8, 2000·50 cites·19 claims
- 1362US6956487B2Battery charging status indication circuitMOTOROLA INC·Filed 2002·Granted Oct 18, 2005·15 cites·11 claims
- 1461US9097775B2Apparatus and method for discharging a battery and determining a condition of the batteryMOTOROLA SOLUTIONS INC·Filed 2012·Granted Aug 4, 2015·1 cites·17 claims
- 1561US5694025ABattery charger with control circuitMOTOROLA INC·Filed 1996·Granted Dec 2, 1997·28 cites·13 claims
- 1658US7145313B2Battery protection circuit for simulating an overcurrent condition based on battery current flowMOTOROLA INC·Filed 2004·Granted Dec 5, 2006·13 cites·15 claims
- 1756US7096047B2Electronic audio accessory for use with automotive stereo loudspeakersMOTOROLA INC·Filed 2001·Granted Aug 22, 2006·5 cites·11 claims
- 1851US6091229ASub-miniature high efficiency battery charger system and methodMOTOROLA INC·Filed 1999·Granted Jul 18, 2000·25 cites·12 claims
- 1949US6879517B2Battery circuit with three-terminal memory deviceMOTOROLA INC·Filed 2002·Granted Apr 12, 2005·5 cites·4 claims
- 2048US10759301B2Systems and methods for reducing current drain in batteriesMOTOROLA SOLUTIONS INC·Filed 2017·Granted Sep 1, 2020·0 cites·20 claims
- 2148US9985694B2Methods and systems for contactless battery dischargingMOTOROLA SOLUTIONS INC·Filed 2014·Granted May 29, 2018·0 cites·10 claims
- 2245US6400587B1Universal input flyback with secondary shunt voltage limiterMOTOROLA INC·Filed 2001·Granted Jun 4, 2002·6 cites·4 claims
- 2345US6054843AHigh speed battery charging system with high accuracy voltage sensingMOTOROLA INC·Filed 1999·Granted Apr 25, 2000·19 cites·7 claims
- 2440US7027604B2Circuit to prevent acoustic feedback for a cellular speakerphoneMOTOROLA INC·Filed 2001·Granted Apr 11, 2006·0 cites·6 claims
- 2537US5705915AMethod for charging a batteryMOTOROLA INC·Filed 1997·Granted Jan 6, 1998·15 cites·8 claims
- 2637US2005269989A1Cell balancing circuitGEREN MICHAEL D·Filed 2004·Application pending·0 cites
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