Inventor
EARHART DAVID EARL
US6 patents
⚠️ This page may combine multiple inventors who share the name “EARHART DAVID EARL”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
GM GLOBAL TECH OPERATIONS INC
5 patentsUS7604561B2Oct 20, 2009
Multi-speed countershaft transmission with a planetary gear set and method
GM GLOBAL TECH OPERATIONS INC60 citations95
US8038564B2Oct 18, 2011
Multi-speed transmission
GM GLOBAL TECH OPERATIONS INC19 citations91
US7896770B2Mar 1, 2011
Multi-speed transmission
GM GLOBAL TECH OPERATIONS INC26 citations91
US7846055B2Dec 7, 2010
Multi-speed split dual clutch transmission
GM GLOBAL TECH OPERATIONS INC13 citations82
US7837589B2Nov 23, 2010
Multi-speed split dual clutch transmission
GM GLOBAL TECH OPERATIONS INC10 citations82