Inventor

CLOSE FRANK

GB3 patents

Patents

3 patents

US5013187AMay 7, 1991

Positioning components and energizing sealing assemblies therefor

COOPER IND INC12 citations69

US4957313ASep 18, 1990

Emergency suspension system for drill casings

COOPER IND INC9 citations69

US4951972AAug 28, 1990

Rotatable sealing assemblies

COOPER IND INC4 citations58