VISTA RESEARCH GROUP, LLC
26Patents
10Active
26Granted
42Portfolio score
Filing activity: Feb 21, 1986 → Feb 27, 2017 · 2 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5090234A | Positive displacement pump apparatus and methods for detection of leaks in pressurized pipeline systems | Physics | 105 | Expired |
| US5078006A | Methods for detection of leaks in pressurized pipeline systems | Physics | 91 | Expired |
| US5189904A | Temperature compensated methods for detection of leaks in pressurized pipeline systems using piston displacement apparatus | Physics | 80 | Expired |
| US5415033A | Simplified apparatus for detection of leaks in pressurized pipelines | Physics | 76 | Expired |
| US6003376A | Acoustic system for measuring the location and depth of underground pipe | Physics | 73 | Expired |
| US5163314A | Temperature compensated methods for detection of leaks in pressurized pipeline systems using gas controlled apparatus | Physics | 66 | Expired |
| US5375455A | Methods for measuring flow rates to detect leaks | Physics | 61 | Expired |
| US5950487A | Gauge for measuring liquid levels | Physics | 59 | Expired |
| US5170657A | Temperature compensated methods for detection of leaks in pressurized pipeline systems | Physics | 58 | Expired |
| US4646560A | System and method for leak detection in liquid storage tanks | Physics | 46 | Expired |
| US6549857B2 | Methods for detecting leaks in pressurized piping with a pressure measurement system | Physics | 41 | Expired |
| US6082182A | Apparatus for measuring the flow rate due to a leak in a pressurized pipe system | Physics | 24 | Expired |
| US8026842B2 | Method for surveillance to detect a land target | Physics | 21 | Active |
| US5948969A | Methods for measuring the flow rate due to a leak in a pressurized pipe system | Physics | 21 | Expired |
| US5127266A | Methods for liquid measurement using quasi-static reference subsystem | Emerging Cross-Sectional Technologies | 19 | Expired |
| US8026844B2 | Radar visibility model | Physics | 16 | Active |
| US5146784A | Sensor for measuring liquid-level changes in storage tanks | Physics | 16 | Expired |
| US6499353B1 | Method and apparatus for remote measurement of physical properties inside a sealed container | Physics | 15 | Expired |
| US8330647B2 | Sensor suite and signal processing for border surveillance | Physics | 12 | Active |
| US9030351B2 | Sensor suite and signal processing for border surveillance | Physics | 11 | Active |
| US9696409B2 | Sensor suite and signal processing for border surveillance | Physics | 9 | Active |
| US9268008B1 | Detection of low observable objects in clutter using non-coherent radars | Physics | 9 | Active |
| USD810894S1 | Autoclave drain connector | General | 4 | Active |
| USD810893S1 | Plumbing fitting | General | 3 | Active |
| US9348342B1 | Water supply assembly for an autoclave | Human Necessities | 2 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.