Assignee

BESON JOHN

US3 patents

Top patents by PatentIndex Score

US5338003AAug 16, 1994

Dual seal ball valve

BESON JOHN42 citations91

US4566671AJan 28, 1986

Gate valve having a secondary seal

BESON JOHN20 citations72

US4377273AMar 22, 1983

Gate valve having a secondary seal

BESON JOHN18 citations72