Inventor

LANGHAM RONALD F

US2 patents

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

BAKER OIL TOOLS INC

1 patent

US4467870AAug 28, 1984

Fluid pressure actuator for subterranean well apparatus

BAKER OIL TOOLS INC88 citations89

OTIS ENG CO

1 patent

US4299281ANov 10, 1981

Compensating bridge plug

OTIS ENG CO8 citations69