Inventor
MATHIS LOGAN H
US6 patents
Patents
6 patentsUS5927324AJul 27, 1999
Cross flow with crossmirror and lock out capability valve
ROSS OPERATING VALVE CO22 citations90
US4542767ASep 24, 1985
Monitor for double safety valves
ROSS OPERATING VALVE CO40 citations89
US4883091ANov 28, 1989
Multi-port self-regulating proportional pressure control valve
ROSS OPERATING VALVE CO25 citations85
US5850852ADec 22, 1998
Crossflow with crossmirror and lock out capability valve
ROSS OPERATING VALVE CO9 citations71
US6318396B1Nov 20, 2001
Double valve with anti-tiedown capability
ROSS OPERATING VALVE CO6 citations70
US6155293ADec 5, 2000
Double valve with anti-tiedown capability
ROSS OPERATING VALVE CO11 citations70