Assignee
VISTA RESEARCH INC
US·14 granted patents·1,064 citations·filing 1986–1999
Top patents by PatentIndex Score
14 records- 0196US5090234APositive displacement pump apparatus and methods for detection of leaks in pressurized pipeline systemsVISTA RESEARCH INC·Filed 1990·Granted Feb 25, 1992·119 cites·10 claims
- 0295US5415033ASimplified apparatus for detection of leaks in pressurized pipelinesVISTA RESEARCH INC·Filed 1993·Granted May 16, 1995·106 cites·10 claims
- 0395US5375455AMethods for measuring flow rates to detect leaksVISTA RESEARCH INC·Filed 1993·Granted Dec 27, 1994·97 cites·21 claims
- 0494US5189904ATemperature compensated methods for detection of leaks in pressurized pipeline systems using piston displacement apparatusVISTA RESEARCH INC·Filed 1992·Granted Mar 2, 1993·94 cites·16 claims
- 0594US5078006AMethods for detection of leaks in pressurized pipeline systemsVISTA RESEARCH INC·Filed 1990·Granted Jan 7, 1992·113 cites·9 claims
- 0691US4646560ASystem and method for leak detection in liquid storage tanksVISTA RESEARCH INC·Filed 1986·Granted Mar 3, 1987·61 cites·20 claims
- 0790US5950487AGauge for measuring liquid levelsVISTA RESEARCH INC·Filed 1996·Granted Sep 14, 1999·101 cites·23 claims
- 0890US5163314ATemperature compensated methods for detection of leaks in pressurized pipeline systems using gas controlled apparatusVISTA RESEARCH INC·Filed 1992·Granted Nov 17, 1992·73 cites·12 claims
- 0988US5170657ATemperature compensated methods for detection of leaks in pressurized pipeline systemsVISTA RESEARCH INC·Filed 1992·Granted Dec 15, 1992·64 cites·12 claims
- 1086US6003376AAcoustic system for measuring the location and depth of underground pipeVISTA RESEARCH INC·Filed 1998·Granted Dec 21, 1999·93 cites·50 claims
- 1183US6082182AApparatus for measuring the flow rate due to a leak in a pressurized pipe systemVISTA RESEARCH INC·Filed 1999·Granted Jul 4, 2000·45 cites·12 claims
- 1273US5948969AMethods for measuring the flow rate due to a leak in a pressurized pipe systemVISTA RESEARCH INC·Filed 1997·Granted Sep 7, 1999·33 cites·57 claims
- 1370US5146784ASensor for measuring liquid-level changes in storage tanksVISTA RESEARCH INC·Filed 1991·Granted Sep 15, 1992·32 cites·7 claims
- 1470US5127266AMethods for liquid measurement using quasi-static reference subsystemVISTA RESEARCH INC·Filed 1990·Granted Jul 7, 1992·33 cites·3 claims
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