Precision Navigation, Inc.
9Patents
0Active
9Granted
27Portfolio score
Filing activity: Jul 2, 1987 → Oct 12, 1999
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6243660A | Digital compass with multiple sensing and reporting capability | Physics | 108 | Expired |
| US6297732A | Radar/laser detection device with multi-sensing and reporting capability | Performing Operations; Transporting | 71 | Expired |
| US4851775A | Digital compass and magnetometer having a sensor coil wound on a high permeability isotropic core | Physics | 63 | Expired |
| US5239264A | Zero-offset magnetometer having coil and core sensor controlling period of an oscillator circuit | Physics | 52 | Expired |
| US5428902A | Inclinometer sensing circuitry and operation | Physics | 21 | Expired |
| US6084406A | Half-cycle saturable-core magnetometer circuit | Physics | 20 | Expired |
| US5381603A | Reference pointer for a compass display | Physics | 8 | Expired |
| US5680708A | Temperature compensated tilt sensor | Physics | 5 | Expired |
| USD345310S | Directional compass for mounting on a surface | General | 2 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.