Assignee
ANDERSON GREENWOOD & CO
US·16 granted patents·483 citations·filing 1975–1987
Top patents by PatentIndex Score
16 records- 0187US4705065ASafety relief system for control or vent valvesANDERSON GREENWOOD & CO·Filed 1986·Granted Nov 10, 1987·50 cites·26 claims
- 0287US4429711AMultivalve manifold interlock and control systemANDERSON GREENWOOD & CO·Filed 1982·Granted Feb 7, 1984·63 cites·16 claims
- 0386US4602657AValve manifold for a differential pressure transmitterANDERSON GREENWOOD & CO·Filed 1985·Granted Jul 29, 1986·63 cites·21 claims
- 0483US4319492APressure transmitter manifoldANDERSON GREENWOOD & CO·Filed 1980·Granted Mar 16, 1982·47 cites·7 claims
- 0578US4821772ADual active selector valveANDERSON GREENWOOD & CO·Filed 1985·Granted Apr 18, 1989·35 cites·27 claims
- 0675US4674530APressure relief device for vesselsANDERSON GREENWOOD & CO·Filed 1986·Granted Jun 23, 1987·35 cites·5 claims
- 0772US4682495ATesting device for pilot valvesANDERSON GREENWOOD & CO·Filed 1986·Granted Jul 28, 1987·28 cites·15 claims
- 0868US4453417AUnitized measurement instrument connector apparatusANDERSON GREENWOOD & CO·Filed 1982·Granted Jun 12, 1984·31 cites·2 claims
- 0967US4609008ANon-flowing pressure responsive pilot valveANDERSON GREENWOOD & CO·Filed 1985·Granted Sep 2, 1986·36 cites·23 claims
- 1067US4388940APressure relief deviceANDERSON GREENWOOD & CO·Filed 1981·Granted Jun 21, 1983·21 cites·12 claims
- 1163US4445531APilot for safety valveANDERSON GREENWOOD & CO·Filed 1981·Granted May 1, 1984·22 cites·13 claims
- 1258US4672995ARedundant pilot valve control systemANDERSON GREENWOOD & CO·Filed 1985·Granted Jun 16, 1987·17 cites·19 claims
- 1346US4222408ACheck valveANDERSON GREENWOOD & CO·Filed 1978·Granted Sep 16, 1980·13 cites·1 claims
- 1442US4632143APressure boost attachment for pilot valvesANDERSON GREENWOOD & CO·Filed 1985·Granted Dec 30, 1986·8 cites·13 claims
- 1533US4746095ABonnet lockANDERSON GREENWOOD & CO·Filed 1987·Granted May 24, 1988·7 cites·18 claims
- 1632US3986525AInternal tank valveANDERSON GREENWOOD & CO·Filed 1975·Granted Oct 19, 1976·7 cites·11 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →