Assignee
AXELSON INC
US14 patents
Top patents by PatentIndex Score
US4671312AJun 9, 1987
Wireline cutting actuator and valve
AXELSON INC59 citations94
US4619434AOct 28, 1986
Heat sensitive motor valve jack
AXELSON INC39 citations91
US4421134ADec 20, 1983
Heat sensitive gate valve
AXELSON INC28 citations91
US4434967AMar 6, 1984
Valve self-relieving seats
AXELSON INC33 citations88
US5067510ANov 26, 1991
Adjustable, fusible, manually operable valve lock-open assembly
AXELSON INC34 citations83
US4523602AJun 18, 1985
Pressure controller
AXELSON INC19 citations74
US4469119ASep 4, 1984
Pilot valve with fusible lockout knob
AXELSON INC7 citations72
US4505291AMar 19, 1985
Heat sensitive fire safe valve energy assist device
AXELSON INC10 citations71
US4527770AJul 9, 1985
In-service test valve
AXELSON INC9 citations69
US4480653ANov 6, 1984
In-service test valve
AXELSON INC18 citations69
US5140894AAug 25, 1992
Gas spring actuator
AXELSON INC17 citations64
US5027847AJul 2, 1991
Pneumatic valve actuator sequencing control system and sequencing relay device incorporated therein
AXELSON INC5 citations63
US4974631ADec 4, 1990
Dome pressure maintaining valve
AXELSON INC2 citations63
US4625764ADec 2, 1986
Relay valve
AXELSON INC4 citations54