RK

Roger B. Krieger

General Motors: 9 patents #1,725 of 18,328Top 10%
Overall (All Time): #585,194 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
7117726 Method and apparatus for indirect measurement of engine cylinder pressure 2006-10-10
7036483 Diesel engine with dual-lobed intake cam for compression ratio control Sherif H. El Tahry 2006-05-02
6918384 Diesel engine with cam phasers for in-cylinder temperature control Forrest A. Jehlik, Sherif H. El Tahry 2005-07-19
6907725 Method for reducing engine exhaust emissions Patrick G. Szymkowicz, Arjun D. Tuteja 2005-06-21
6830020 Diesel engine with intake cam phaser for compression ratio control Sherif H. El Tahry 2004-12-14
4969329 Two cycle engine with exhaust emission control Robert A. Bolton, Albert A. Miller, Paul E. Reinke 1990-11-13
4969330 Two cycle engine catalytic emission control Edward G. Groff, Rodney B. Rask, Robert A. Bolton, Paul E. Reinke 1990-11-13
4955338 Engine and high turbulence piston therefor Ramachandra Diwakar, Keith Meintjes, Edward G. Groff 1990-09-11
4919088 Two cycle engine scavenging heat control Rodney B. Rask 1990-04-24