Inventor
PLEE STEVEN L
US21 patents
⚠️ This page may combine multiple inventors who share the name “PLEE STEVEN L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MOTOROLA INC
13 patentsUS6456927B1Sep 24, 2002
Spectral knock detection method and system therefor
MOTOROLA INC59 citations95
US5387253AFeb 7, 1995
Spectral misfire detection system and method therefor
MOTOROLA INC63 citations95
US5915272AJun 22, 1999
Method of detecting low compression pressure responsive to crankshaft acceleration measurement and apparatus therefor
MOTOROLA INC67 citations94
US5841025ANov 24, 1998
Misfire detection method and apparatus
MOTOROLA INC46 citations92
US5559705ASep 24, 1996
Adaptive profile correction for rotating position encoders in reciprocating engines
MOTOROLA INC41 citations92
US5515720AMay 14, 1996
Acceleration based misfire detection system and method with improved signal fidelity
MOTOROLA INC35 citations92
US5508927AApr 16, 1996
Apparatus and method for variable windowed peak detection in a misfire detection system
MOTOROLA INC20 citations92
US5637788AJun 10, 1997
Apparatus and method of detecting a leak in an evaporative emissions system
MOTOROLA INC36 citations89
US5400644AMar 28, 1995
Knock detection system
MOTOROLA INC51 citations89
US7089895B2Aug 15, 2006
Valve operation in an internal combustion engine
MOTOROLA INC15 citations81
US5858306AJan 12, 1999
Modified noble metal catalyst based calorimetric sensor and method
MOTOROLA INC17 citations81
US5806014ASep 8, 1998
Combustion control of an internal combustion engine proximate an extinction limit
MOTOROLA INC15 citations73
US5503007AApr 2, 1996
Misfire detection method and apparatus therefor
MOTOROLA INC14 citations73
BARRACK TECHNOLOGY LTD
7 patentsUS5076237ADec 31, 1991
Means and method for measuring and controlling smoke from an internal combustion engine
BARRACK TECHNOLOGY LTD69 citations95
US5219227AJun 15, 1993
Method and apparatus for determining burned gas temperature, trapped mass and NOx emissions in an internal combustion engine
BARRACK TECHNOLOGY LTD31 citations92
US5113828AMay 19, 1992
Method and apparatus for determining combustion conditions and for operating an engine
BARRACK TECHNOLOGY LTD23 citations92
US5067463ANov 26, 1991
Method and apparatus for operating an engine
BARRACK TECHNOLOGY LTD31 citations92
US5038744AAug 13, 1991
Method and apparatus for controlling spark ignition in an internal combustion engine
BARRACK TECHNOLOGY LTD28 citations91
US4940033AJul 10, 1990
Method of operating an engine and measuring certain operating parameters
BARRACK TECHNOLOGY LTD22 citations78
US4930478AJun 5, 1990
Method of operating an engine
BARRACK TECHNOLOGY LTD19 citations78