Inventor

CLARK RALPH B

4 patents

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

CATERPILLAR TRACTOR CO

2 patents

US4041804AAug 16, 1977

Limited slip differential with clutch control means

CATERPILLAR TRACTOR CO51 citations89

US3976154AAug 24, 1976

Drive line differential apparatus for a vehicle

CATERPILLAR TRACTOR CO46 citations87

CLARK RALPH B

1 patent

USD472293SMar 25, 2003

Fish lure having a weighted ornamented head and multifilamentous trailing skirt

CLARK RALPH B12 citations66

DRAVO LIME CO

1 patent

US5628811AMay 13, 1997

Method of ameliorating acid soil to enhance plant growth

DRAVO LIME CO15 citations65