Inventor
Allen Lehmen
Inventor
Howell, MI, US
Overview
Patents· 24 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
Y02Tprimary
Y02TClimate change mitigation technologies related to transportation23%
F02DControlling combustion engines16%
B60WConjoint control of vehicle sub-units of different type or different function11%
F01NGas-flow silencers or exhaust apparatus for machines or engines in general10%
B60KArrangement or mounting of propulsion units or of transmissions in vehicles5%
F02NStarting of combustion engines4%
Y10TTechnical subjects covered by former us classification4%
B60HArrangements of heating, cooling, ventilating or other air-treating devices specially adapted for passenger or goods spaces of vehicles2%
F02MSupplying combustion engines in general with combustible mixtures or constituents thereof2%
F02PIgnition, other than compression ignition, for internal-combustion engines2%
PatentTitleYear
11,073,064Gasoline particulate filter diagnostics202111,073,063Gasoline particulate filter diagnostics202111,041,423Method and system for leak detection at a particulate filter202110,928,275Systems and methods for coordinating engine-off vehicle diagnostic monitors202110,598,069Method and system for regenerating a gasoline particulate filter202010,323,562Gasoline particulate filter diagnostics201910,059,338Method and system for regenerating a gasoline particulate filter201810,041,424Methods and system for catalyst reactivation20189,644,559'Systems and methods for improving engine emissions during starting'20179,599,052'Methods and system for catalyst reactivation'20179,470,173'System and method for reducing engine oil dilution'20169,399,961'Method and system for air fuel ratio control and detecting cylinder imbalance'20169,139,194'Hybrid powertrain input torque management'20159,108,620'Method to reduce powertrain noise and vibration during engine start in hybrid vehicle'20158,968,154'Method and apparatus for controlling a hydraulic pump for a multimode transmission of a powertrain system'20158,956,265'Method and apparatus for executing a clutch-driven engine autostart operation'20158,851,055'Method and apparatus for controlling hybrid powertrain system in response to engine temperature'20148,489,267'Method and system for adapting engine coolant temperature (ECT) warm-up trajectory based on heater core loading to adjust cabin temperature'20138,328,682'System and method for controlling amount of time needed to commence transmitting engine torque in a vehicle'20128,290,691'Method and apparatus for optimizing engine on/off cycling in a vehicle'20128,214,095'Method and apparatus for detecting engine firing in a hybrid powertrain system'20127,287,512'Throttle position sensor'20076,594,562'Diagnostic method for vehicle evaporative emissions'20036,435,164'Fuel weathering method for vehicle evaporative emission system'2002Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2002–2003Patents assigned to FORD GLOBAL TECH INC (2)· patent assignee history
2002–2003Based in Dearborn, MI, US· patent location history
2007Based in Iron Ridge, WI, US· patent location history
2012–2015Patents assigned to GM GLOBAL TECH OPERATIONS INC (9)· patent assignee history
2012–2015Patents assigned to LEHMEN ALLEN J (8)· patent assignee history
2012–2021Based in Howell, MI, US· patent location history
2015Patents assigned to CHIN POH FONG (3)· patent assignee history
2016–2021Patents assigned to FORD GLOBAL TECH LLC (12)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| FORD GLOBAL TECH LLC | 12 | 2016–2021 |
| GM GLOBAL TECH OPERATIONS INC | 9 | 2012–2015 |
| LEHMEN ALLEN Jself | 8 | 2012–2015 |
| CHIN POH FONG | 3 | 2015 |
| FORD GLOBAL TECH INC | 2 | 2002–2003 |
Locations
| Location | Patents | Span |
|---|---|---|
| Howell, MI, US | 21 | 2012–2021 |
| Dearborn, MI, US | 2 | 2002–2003 |
| Iron Ridge, WI, US | 1 | 2007 |