Inventor

HAWN KEITH A

US3 patents

Patents

3 patents

US5674401AOct 7, 1997

Oil monitor with magnetic field

COMPUTATIONAL SYSTEMS INC93 citations93

US5614830AMar 25, 1997

Oil monitor with magnetic field

COMPUTATIONAL SYSTEMS INC65 citations93

US5262732ANov 16, 1993

Oil monitor with magnetic field

COMPUTATIONAL SYSTEMS INC77 citations93