Inventor

John R. Grabowski

Inventor
Dearborn, MI, US

Overview

20→
Patents
1992–2011
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 20 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

F01Lprimary
F01LCyclically operating valves for machines or engines15%
F02DControlling combustion engines15%
Y02TClimate change mitigation technologies related to transportation13%
H01FMagnets11%
B62DMotor vehicles7%
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems6%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters6%
B60LPropulsion of electrically-propelled vehicles4%
F02PIgnition, other than compression ignition, for internal-combustion engines4%
B60HArrangements of heating, cooling, ventilating or other air-treating devices specially adapted for passenger or goods spaces of vehicles2%
PatentTitleYear
7,970,528'Gaseous fuel management system for automotive vehicle'20117,540,264'Initialization of electromechanical valve actuator in an internal combustion engine'20097,509,931'Power electronics circuit for electromechanical valve actuator of an internal combustion engine'20097,367,296'Bi-directional power electronics circuit for electromechanical valve actuator of an internal combustion engine'20087,167,793'Engine position correction'20077,156,082'Controlling spark for an engine with controllable valves'20077,082,934'Controlling spark for an engine with controllable valves'20067,054,737'Power electronics circuit with voltage regulator for electromechanical valve actuator of an internal combustion engine'20067,036,469'Bi-directional power electronics circuit for electromechanical valve actuator of an internal combustion engine'20067,021,255'Initialization of electromechanical valve actuator in an internal combustion engine'20066,777,904'Method and system for controlling a motor'20046,727,670'Battery current limiter for a high voltage battery pack in a hybrid electric vehicle powertrain'20046,534,972'Magneto-resistive position sensor and variable reluctance controller interface circuit'20036,101,435'Method for compensating a power assist steering system control signal'20006,089,344'Method and apparatus for determining the center position of a steering system'20006,073,721'Method for limiting hydraulic assist in a power assist steering system'20006,069,460'Method for controlling an electro-hydraulic power assist steering system'20006,023,558'Graphics compression for an emulation system'20005,254,926'Current-mode hysteresis control for controlling a motor'19935,159,542'Selectable hysteresis controller for pulse width modulated inverter'1992

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992–1993Patents assigned to FORD MOTOR CO (2)· patent assignee history
1992–2011Based in Dearborn, MI, US· patent location history
2000–2003Patents assigned to FORD GLOBAL TECH INC (5)· patent assignee history
2000Patents assigned to APPLE COMPUTER (1)· patent assignee history
2000Based in Sunnyvale, CA, US· patent location history
2004–2009Patents assigned to FORD GLOBAL TECH LLC (11)· patent assignee history
2011Patents assigned to FORD GLOBAL TECH (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
FORD GLOBAL TECH LLC112004–2009
FORD GLOBAL TECH INC52000–2003
FORD MOTOR CO21992–1993
APPLE COMPUTER12000
FORD GLOBAL TECH12011
Locations
LocationPatentsSpan
Dearborn, MI, US191992–2011
Sunnyvale, California, US12000