Assignee
ALLEGHENY VALVE CO
US·4 granted patents·84 citations·filing 1981–1982
Top patents by PatentIndex Score
4 records- 0187US4445533AAir check valve assembly for powdered bulk product transportALLEGHENY VALVE CO·Filed 1981·Granted May 1, 1984·51 cites·12 claims
- 0252US4508131ASafety valving for cargo tanks used for bulk transportation of hazardous commoditiesALLEGHENY VALVE CO·Filed 1982·Granted Apr 2, 1985·15 cites·7 claims
- 0346US4453698AStuffing box with O-ring detent for control mechanism of emergency valveALLEGHENY VALVE CO·Filed 1982·Granted Jun 12, 1984·10 cites·10 claims
- 0442US4457486ADischarge control means for a storage tank for liquidALLEGHENY VALVE CO·Filed 1982·Granted Jul 3, 1984·8 cites·14 claims
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