Inventor · disambiguated record
Qi Ma
Also filed as: MA QI · MA QI Y · MA QI-YUAN
34 granted patents·4 pending applications·302 citations·filing 1993–2023
97Inventor score
Files withGM GLOBAL TECH OPERATIONS INC16MA QI11EDAN INSTRUMENTS INC2UNIV BRITISH COLUMBIA2ABBOUD AMIN1
Top patents by PatentIndex Score
38 records- 0195US8442747B2Cylinder air mass prediction systems for stop-start and hybrid electric vehiclesMA QI·Filed 2010·Granted May 14, 2013·17 cites·22 claims
- 0295US7302937B2Calibration of model-based fuel control for engine start and crank to run transitionGM GLOBAL TECH OPERATIONS INC·Filed 2006·Granted Dec 4, 2007·35 cites·22 claims
- 0393US8892339B2Transmission load predicting system for a stop-start system and a hybrid electric vehicleMA QI·Filed 2010·Granted Nov 18, 2014·12 cites·20 claims
- 0493US7565892B1Method and apparatus for controlling mode transition in a spark-ignition direct-injection internal combustion engineGM GLOBAL TECH OPERATIONS INC·Filed 2008·Granted Jul 28, 2009·31 cites·20 claims
- 0592US8855896B2Intake manifold refill and holding control systems and methodsMA QI·Filed 2010·Granted Oct 7, 2014·12 cites·12 claims
- 0691US8543318B2Controlled engine shutdown system for a stop-start system and a hybrid electric vehicleMA QI·Filed 2010·Granted Sep 24, 2013·11 cites·19 claims
- 0791US7841769B2Method and apparatus for determining temperature in a gas feedstreamGM GLOBAL TECH OPERATIONS INC·Filed 2007·Granted Nov 30, 2010·19 cites·12 claims
- 0888US8392097B2Method for starting an internal combustion engine within a hybrid powertrainMA QI·Filed 2010·Granted Mar 5, 2013·9 cites·13 claims
- 0987US8694231B2Vehicle rollback control systems and methodsMA QI·Filed 2010·Granted Apr 8, 2014·7 cites·26 claims
- 1081US8635987B2Engine speed control systems and methodsMA QI·Filed 2010·Granted Jan 28, 2014·5 cites·20 claims
- 1180US7848872B2Method and apparatus for monitoring recirculated exhaust gas in an internal combustion engineGM GLOBAL TECH OPERATIONS INC·Filed 2007·Granted Dec 7, 2010·14 cites·14 claims
- 1278US8972150B2Selective cylinder disablement control systems and methodsMA QI·Filed 2010·Granted Mar 3, 2015·4 cites·20 claims
- 1376US8152369B2Method and apparatus for determining temperature in a gas feedstreamMA QI·Filed 2010·Granted Apr 10, 2012·3 cites·15 claims
- 1476US7204236B2Calibration of model-based fuel control with fuel dynamics compensation for engine start and crank to run transitionGM GLOBAL TECH OPERATIONS INC·Filed 2006·Granted Apr 17, 2007·9 cites·24 claims
- 1572US8453620B2Systems and methods for improved engine start-stop responseABBOUD AMIN·Filed 2010·Granted Jun 4, 2013·3 cites·20 claims
- 1672US7712445B2Fuel pressure boost method and apparatusGM GLOBAL TECH OPERATIONS INC·Filed 2007·Granted May 11, 2010·6 cites·12 claims
- 1770US8150604B2Method and apparatus for reducing spark plug foulingMA QI·Filed 2009·Granted Apr 3, 2012·8 cites·20 claims
- 1867US5512702AMethod for in-situ immobilization of lead in contaminated soils, wastes, and sediments using solid calcium phosphate materialsUNIV OHIO STATE RES FOUND·Filed 1993·Granted Apr 30, 1996·43 cites·17 claims
- 1965US8296038B2Method and system for determining engine brake torque in real timeVERDEJO JULIAN R·Filed 2009·Granted Oct 23, 2012·5 cites·18 claims
- 2063US12390192B2Detection probe, transmission apparatus, and detection deviceEDAN INSTRUMENTS INC·Filed 2023·Granted Aug 19, 2025·0 cites·20 claims
- 2163US7784441B2Method and apparatus for supporting stop-and-go engine functionalityGM GLOBAL TECH OPERATIONS INC·Filed 2009·Granted Aug 31, 2010·3 cites·10 claims
- 2262US5547922AFabrication of oxide superconductor devices and circuits by impurity ion implantationUNIV BRITISH COLUMBIA·Filed 1995·Granted Aug 20, 1996·25 cites·27 claims
- 2361US2010198613A1Computer SystemUNIV CITY·Filed 2008·Application pending·0 cites
- 2460US12390193B2Detection probe, transmission device, and detection instrumentEDAN INSTRUMENTS INC·Filed 2023·Granted Aug 19, 2025·0 cites·20 claims
- 2560US7793641B2Model-based fuel control for engine start and crank-to-run transitionGM GLOBAL TECH OPERATIONS INC·Filed 2006·Granted Sep 14, 2010·4 cites·28 claims
- 2659US8001942B2High pressure piston pump actuating system using automotive starter systemGM GLOBAL TECH OPERATIONS INC·Filed 2007·Granted Aug 23, 2011·3 cites·17 claims
- 2758US7690344B2Method and apparatus for supporting stop-and-go engine functionalityGM GLOBAL TECH OPERATIONS INC·Filed 2008·Granted Apr 6, 2010·2 cites·7 claims
- 2854US8334687B2Systems and methods for measuring rotational speed and position of a rotating deviceMA QI·Filed 2009·Granted Dec 18, 2012·3 cites·18 claims
- 2952US7775091B2Method and apparatus for determining intake air massGM GLOBAL TECH OPERATIONS INC·Filed 2008·Granted Aug 17, 2010·2 cites·15 claims
- 3050US7683799B2Absolute angular position sensing system based on radio frequency identification technologyGM GLOBAL TECH OPERATIONS INC·Filed 2007·Granted Mar 23, 2010·1 cites·8 claims
- 3147US12448331B2Organic silicon nano-precursor medium transmission inhibitor, its preparation method and useSOBUTE NEW MAT CO LTD·Filed 2020·Granted Oct 21, 2025·0 cites·7 claims
- 3247US10826282B2Copper bar component for switching input/output mode of uninterruptible power supply, and power systemHUAWEI TECH CO LTD·Filed 2019·Granted Nov 3, 2020·0 cites·20 claims
- 3346US2022378357A1Device and method for acquiring brain electrical signalUNIV TSINGHUA·Filed 2022·Application pending·0 cites
- 3442US7769524B2Control system for determining mass air flowGM GLOBAL TECH OPERATIONS INC·Filed 2008·Granted Aug 3, 2010·0 cites·20 claims
- 3542US2009193795A1Method and apparatus for regenerating an aftertreatment device for a spark-ignition direct-injection engineGM GLOBAL TECH OPERATIONS INC·Filed 2008·Application pending·0 cites
- 3640US2010082219A1Engine Using Glow Plug Resistance For Estimating Combustion TemperatureGM GLOBAL TECH OPERATIONS INC·Filed 2008·Application pending·0 cites
- 3739US7647162B2Utilized function for fuel dynamics during engine start and crank-to-run transitionGM GLOBAL TECH OPERATIONS INC·Filed 2006·Granted Jan 12, 2010·0 cites·18 claims
- 3839US5795848AOxide superconductor devices fabricated by impurity ion implantationUNIV BRITISH COLUMBIA·Filed 1996·Granted Aug 18, 1998·6 cites·5 claims
Join the waitlist — get patent alerts
Get an alert when Qi Ma 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 →