Assignee
SHAFER VALVE CO
8 granted patents·200 citations·filing 1974–1993
Top patents by PatentIndex Score
8 records- 0183US5361622ADevice and method for detection of leaks in pressurized fluid vesselsSHAFER VALVE CO·Filed 1993·Granted Nov 8, 1994·52 cites·10 claims
- 0281US4144743AElectronic fluid pipeline leak detector and methodSHAFER VALVE CO·Filed 1978·Granted Mar 20, 1979·33 cites·16 claims
- 0379US4012944AElectronic fluid pipeline leak detector and methodSHAFER VALVE CO·Filed 1974·Granted Mar 22, 1977·29 cites·10 claims
- 0475US4102128AHand pump system for hydraulic motorSHAFER VALVE CO·Filed 1977·Granted Jul 25, 1978·22 cites·14 claims
- 0569US4091658AElectronic fluid pipeline leak detector and methodSHAFER VALVE CO·Filed 1975·Granted May 30, 1978·20 cites·5 claims
- 0664US5244004AHydraulic pipeline valve operating systemSHAFER VALVE CO·Filed 1992·Granted Sep 14, 1993·24 cites·26 claims
- 0758US4633702ATorque and friction testerSHAFER VALVE CO·Filed 1984·Granted Jan 6, 1987·18 cites·19 claims
- 0815US4005642ACross-over port construction for hydraulic motorsSHAFER VALVE CO·Filed 1975·Granted Feb 1, 1977·2 cites·3 claims
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