Inventor

KEYES DAVID JOHN

US2 patents

⚠️ This page may combine multiple inventors who share the name “KEYES DAVID JOHN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

GM GLOBAL TECH OPERATIONS INC

1 patent

US7862943B2Jan 4, 2011

Method and apparatus for starting a fuel cell engine in a vehicle equipped with an ultracapacitor

GM GLOBAL TECH OPERATIONS INC15 citations79

WHITEHOUSE KRISTIAN M

1 patent

US8154242B2Apr 10, 2012

Method of fully charging an electrical energy storage device using a lower voltage fuel cell system

WHITEHOUSE KRISTIAN M1 citations33