Inventor
SPARKS GREGORY E
US6 patents
⚠️ This page may combine multiple inventors who share the name “SPARKS GREGORY E”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DEERE & CO
5 patentsUS5012415AApr 30, 1991
Control system calibration
DEERE & CO43 citations90
US4799645AJan 24, 1989
Pilot operated hydraulic control valve
DEERE & CO47 citations90
US4523494AJun 18, 1985
Steering pressure responsive differential lock control system
DEERE & CO18 citations73
US5201174AApr 13, 1993
Auxiliary hydraulic pump system
DEERE & CO15 citations72
US4419642ADec 6, 1983
Solenoid with saturable element
DEERE & CO14 citations70