Inventor
HAAK WILLARD J
9 patents
⚠️ This page may combine multiple inventors who share the name “HAAK WILLARD J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CATERPILLAR TRACTOR CO
7 patentsUS4250794AFeb 17, 1981
High pressure hydraulic system
CATERPILLAR TRACTOR CO63 citations95
US3972267AAug 3, 1976
Overruning load control for hydraulic jacks
CATERPILLAR TRACTOR CO22 citations81
US4206688AJun 10, 1980
Overrunning load control for hydraulic motors
CATERPILLAR TRACTOR CO22 citations79
US4102425AJul 25, 1978
Front wheel drive system for a vehicle
CATERPILLAR TRACTOR CO19 citations73
US4126083ANov 21, 1978
Attitude control for implement
CATERPILLAR TRACTOR CO8 citations71
US4029166AJun 14, 1977
Final sprocket drive for track-type vehicles
CATERPILLAR TRACTOR CO15 citations70
US3990528ANov 9, 1976
Epicyclic final drive for track-type vehicles
CATERPILLAR TRACTOR CO10 citations65