Inventor
KRIEGER ROGER B
US9 patents
⚠️ This page may combine multiple inventors who share the name “KRIEGER ROGER B”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
GEN MOTORS CORP
8 patentsUS6907725B2Jun 21, 2005
Method for reducing engine exhaust emissions
GEN MOTORS CORP53 citations94
US4969329ANov 13, 1990
Two cycle engine with exhaust emission control
GEN MOTORS CORP42 citations90
US7036483B2May 2, 2006
Diesel engine with dual-lobed intake cam for compression ratio control
GEN MOTORS CORP11 citations82
US6830020B1Dec 14, 2004
Diesel engine with intake cam phaser for compression ratio control
GEN MOTORS CORP16 citations81
US6918384B2Jul 19, 2005
Diesel engine with cam phasers for in-cylinder temperature control
GEN MOTORS CORP15 citations79
US4969330ANov 13, 1990
Two cycle engine catalytic emission control
GEN MOTORS CORP11 citations72
US4955338ASep 11, 1990
Engine and high turbulence piston therefor
GEN MOTORS CORP17 citations69
US4919088AApr 24, 1990
Two cycle engine scavenging heat control
GEN MOTORS CORP4 citations62