Inventor · disambiguated record
Lawrence P. Ziehr
Also filed as: ZIEHR LAWRENCE · ZIEHR LAWRENCE P
37 granted patents·9 pending applications·830 citations·filing 1998–2023
98Inventor score
Files withGM GLOBAL TECH OPERATIONS LLC19GM GLOBAL TECH OPERATIONS INC9DAIMLER CHRYSLER CORP6ZIEHR LAWRENCE P5GEN MOTORS CORP4
Top patents by PatentIndex Score
46 records- 0197US11065936B2Vehicle thermal system architectureGM GLOBAL TECH OPERATIONS LLC·Filed 2018·Granted Jul 20, 2021·16 cites·20 claims
- 0296US7395787B1Air separator for low flow rate cooling systemsGM GLOBAL TECH OPERATIONS INC·Filed 2007·Granted Jul 8, 2008·42 cites·16 claims
- 0396US6118099AController for heating in reversible air conditioning and heat pump HVAC system for electric vehiclesDAIMLER CHRYSLER CORP·Filed 1998·Granted Sep 12, 2000·131 cites·8 claims
- 0495US11152653B2Battery thermal managementGM GLOBAL TECH OPERATIONS LLC·Filed 2019·Granted Oct 19, 2021·9 cites·19 claims
- 0595US11072259B2Vehicle thermal systems low to high quality energy management, storage, recovery, and optimizationGM GLOBAL TECH OPERATIONS LLC·Filed 2018·Granted Jul 27, 2021·11 cites·16 claims
- 0695US10953726B2Battery thermal managementGM GLOBAL TECH OPERATIONS LLC·Filed 2019·Granted Mar 23, 2021·9 cites·16 claims
- 0795US7441414B2Method for pre-cooling automotive vehicle passenger compartmentGEN MOTORS CORP·Filed 2004·Granted Oct 28, 2008·71 cites·20 claims
- 0895US6138466ASystem for cooling electric vehicle batteriesDAIMLER CHRYSLER CORP·Filed 1998·Granted Oct 31, 2000·222 cites·8 claims
- 0994US7637031B2Evaporator core drying systemGM GLOBAL TECH OPERATIONS INC·Filed 2007·Granted Dec 29, 2009·33 cites·9 claims
- 1092US11433738B2Vehicle thermal managementGM GLOBAL TECH OPERATIONS LLC·Filed 2020·Granted Sep 6, 2022·4 cites·16 claims
- 1192US9631872B2Multi-circuited vehicular thermal management system and methodGM GLOBAL TECH OPERATIONS LLC·Filed 2013·Granted Apr 25, 2017·12 cites·8 claims
- 1291US7287581B2Full function vehicle HVAC/PTC thermal systemGEN MOTORS CORP·Filed 2003·Granted Oct 30, 2007·45 cites·4 claims
- 1390US9618242B2Method for controlling a thermal storage heat pump systemGM GLOBAL TECH OPERATIONS LLC·Filed 2013·Granted Apr 11, 2017·11 cites·18 claims
- 1489US6077158AAir handling controller for HVAC system for electric vehiclesDAIMLER CHRYSLER CORP·Filed 1998·Granted Jun 20, 2000·50 cites·4 claims
- 1588US11235641B2Thermal system control for a vehicleGM GLOBAL TECH OPERATIONS LLC·Filed 2020·Granted Feb 1, 2022·3 cites·11 claims
- 1688US8918240B2Method for operating hybrid vehicleGM GLOBAL TECH OPERATIONS INC·Filed 2013·Granted Dec 23, 2014·16 cites·22 claims
- 1784US9327577B2Vehicle heat pump system and method utilizing thermal storageGM GLOBAL TECH OPERATIONS INC·Filed 2013·Granted May 3, 2016·6 cites·17 claims
- 1880US10557401B2Thermal management systems, coolant valves and control logic for vehicle powertrainsGM GLOBAL TECH OPERATIONS LLC·Filed 2017·Granted Feb 11, 2020·2 cites·20 claims
- 1980US7567864B2Method for controlling a vehicle's lighting functionalityGEN MOTORS CORP·Filed 2005·Granted Jul 28, 2009·10 cites·15 claims
- 2079US10066561B2Control of engine exhaust backpressure following engine cold-startGM GLOBAL TECH OPERATIONS LLC·Filed 2016·Granted Sep 4, 2018·2 cites·14 claims
- 2179US8330591B2Method and system for adjusting vehicular components based on sun positionZIEHR LAWRENCE P·Filed 2006·Granted Dec 11, 2012·7 cites·20 claims
- 2276US6659727B2Control method for a dual mode compressor drive systemGEN MOTORS CORP·Filed 2001·Granted Dec 9, 2003·20 cites·10 claims
- 2374US10415689B2Thermoelectric generator for transmission warm-upGM GLOBAL TECH OPERATIONS LLC·Filed 2018·Granted Sep 17, 2019·1 cites·13 claims
- 2474US10094464B2Thermoelectric generator for transmission warm-upGM GLOBAL TECH OPERATIONS LLC·Filed 2016·Granted Oct 9, 2018·1 cites·1 claims
- 2574US8932743B2Thermal management controls for a vehicle having a rechargeable energy storage systemSIMONINI MATTHEW·Filed 2010·Granted Jan 13, 2015·7 cites·20 claims
- 2672US12460850B2Vapor injection refrigerant systemsGM GLOBAL TECH OPERATIONS LLC·Filed 2023·Granted Nov 4, 2025·0 cites·8 claims
- 2769US7971441B2Receiver/dryer-accumulator-internal heat exchanger for vehicle air conditioning systemGM GLOBAL TECH OPERATIONS INC·Filed 2007·Granted Jul 5, 2011·3 cites·18 claims
- 2867US8387406B2Refrigerant system oil accumulation removalZIEHR LAWRENCE P·Filed 2008·Granted Mar 5, 2013·2 cites·8 claims
- 2967US7908877B2Vehicle HVAC controlGM GLOBAL TECH OPERATIONS INC·Filed 2008·Granted Mar 22, 2011·7 cites·18 claims
- 3067US6059027AAnti-fog controller for reversible air conditioning and heat pump HVAC system for electric vehiclesDAIMLER CHRYSLER CORP·Filed 1998·Granted May 9, 2000·26 cites·16 claims
- 3163US8739564B2Controlling temperature of vehicle devices using a variable speed fanMAJOR GREGORY A·Filed 2008·Granted Jun 3, 2014·3 cites·8 claims
- 3262US11807074B2Vehicle cabin comfort management systemGM GLOBAL TECH OPERATIONS LLC·Filed 2021·Granted Nov 7, 2023·0 cites·20 claims
- 3360US11845321B2Vehicle thermal management at condensers of the refrigerant loopGM GLOBAL TECH OPERATIONS LLC·Filed 2020·Granted Dec 19, 2023·0 cites·10 claims
- 3456US6092376AAir handling controller for HVAC system for electric vehiclesDAIMLER CHRYSLER CORP·Filed 1999·Granted Jul 25, 2000·28 cites·5 claims
- 3554US2008034767A1Methods of Optimizing Vehicular Air Conditioning Control SystemsGM GLOBAL TECH OPERATIONS INC·Filed 2006·Application pending·0 cites
- 3653US2022250506A1Battery thermal preconditioningGM GLOBAL TECH OPERATIONS LLC·Filed 2021·Application pending·0 cites
- 3751US8807445B2Auxiliary heater pump controlRIBADENEIRA MARCELO X·Filed 2009·Granted Aug 19, 2014·5 cites·10 claims
- 3850US2007186573A1Methods of and systems for dual drive HVAC compressor controls in automotive vehiclesZIEHR LAWRENCE P·Filed 2006·Application pending·0 cites
- 3949US2007131782A1Vehicle position data enhanced solar sensing for vehicle HVAC applicationsZIEHR LAWRENCE P·Filed 2005·Application pending·0 cites
- 4049US2014230463A1Method for controlling a compressor of a thermal storage heat pump systemGM GLOBAL TECH OPERATIONS INC·Filed 2013·Application pending·0 cites
- 4148US2019390593A1Control System For A Heat ExchangerGM GLOBAL TECH OPERATIONS LLC·Filed 2018·Application pending·0 cites
- 4247US10844772B2Thermal management system and method for a vehicle propulsion systemGM GLOBAL TECH OPERATIONS LLC·Filed 2018·Granted Nov 24, 2020·0 cites·3 claims
- 4346US6094930ARefrigerant flow management center for automobilesDAIMLER CHRYSLER CORP·Filed 1998·Granted Aug 1, 2000·15 cites·8 claims
- 4440US2018194196A1Systems and methods utilizing heat pumps to recover thermal energy from exhaust gasGM GLOBAL TECH OPERATIONS LLC·Filed 2017·Application pending·0 cites
- 4540US2014174707A1Method and system for thermal storage in a vehicleGM GLOBAL TECH OPERATIONS INC·Filed 2012·Application pending·0 cites
- 4635US2005257545A1Dual compressor HVAC systemZIEHR LAWRENCE P·Filed 2004·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Lawrence P. Ziehr files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →