Assignee
POSI SEAL INTERNATIONAL
US·9 granted patents·384 citations·filing 1975–1988
Top patents by PatentIndex Score
9 records- 0191US4113268AExtended temperature range valve sealPOSI SEAL INTERNATIONAL·Filed 1977·Granted Sep 12, 1978·81 cites·7 claims
- 0290US4533114AFail-safe actuator for rotary valvesPOSI SEAL INTERNATIONAL·Filed 1983·Granted Aug 6, 1985·71 cites·26 claims
- 0386US3986699APositive shut-off sealPOSI SEAL INTERNATIONAL·Filed 1975·Granted Oct 19, 1976·57 cites·12 claims
- 0482US4744572AAll-metal, valve sealing mechanismPOSI SEAL INTERNATIONAL·Filed 1987·Granted May 17, 1988·69 cites·27 claims
- 0578US4261546AQuarter-turn valve actuatorPOSI SEAL INTERNATIONAL·Filed 1980·Granted Apr 14, 1981·38 cites·8 claims
- 0661US4306706ACryogenic valve sealPOSI SEAL INTERNATIONAL·Filed 1979·Granted Dec 22, 1981·20 cites·5 claims
- 0760US4779841AAssembly and method for installing and retaining valve sealsPOSI SEAL INTERNATIONAL·Filed 1986·Granted Oct 25, 1988·22 cites·5 claims
- 0842US4836500AAssembly and method for installing and retaining valve sealsPOSI SEAL INTERNATIONAL·Filed 1988·Granted Jun 6, 1989·12 cites·12 claims
- 0941US4335748ABidirectional control valvePOSI SEAL INTERNATIONAL·Filed 1980·Granted Jun 22, 1982·14 cites·12 claims
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