Alexander McEachern
34Patents
20h-index
17Co-inventors
82Inventor score
Filing activity: May 28, 1985 → Jan 18, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5089979A | Apparatus for digital calibration of detachable transducers | Electricity | 121 | Expired |
| US5536979A | Charger for hand-held rechargeable electric apparatus with switch for reduced magnetic field | Emerging Cross-Sectional Technologies | 111 | Expired |
| US5212441A | Harmonic-adjusted power factor meter | Physics | 91 | Expired |
| US5302890A | Harmonic-adjusted power factor meter | Physics | 76 | Expired |
| US5347464A | High-pass filter for enhancing the resolution of AC power line harmonic measurements | Physics | 70 | Expired |
| US5298854A | Harmonic-adjusted watt-hour meter | Physics | 68 | Expired |
| US5300924A | Harmonic measuring instrument for AC power systems with a time-based threshold means | Physics | 64 | Expired |
| US5298856A | Harmonic-adjusted power factor meter | Physics | 63 | Expired |
| US5680028A | Charger for hand-held rechargeable electric apparatus with reduced magnetic field | Emerging Cross-Sectional Technologies | 60 | Expired |
| US5298855A | Harmonic-adjusted power factor meter | Physics | 59 | Expired |
| US5307009A | Harmonic-adjusted watt-hour meter | Physics | 59 | Expired |
| US5298888A | Harmonic measuring instrument for AC power systems with latched indicator means | Physics | 58 | Expired |
| US5298885A | Harmonic measuring instrument for AC power systems with poly-phase threshold means | Physics | 57 | Expired |
| US5298859A | Harmonic-adjusted watt-hour meter | Physics | 55 | Expired |
| US4694402A | Waveform disturbance detection apparatus and method | Physics | 55 | Expired |
| US7511468B2 | Harmonics measurement instrument with in-situ calibration | Physics | 53 | Active |
| US5530738A | Electric power measuring instrument with speech synthesis feature | Emerging Cross-Sectional Technologies | 29 | Expired |
| US4642563A | Power line impulse measurement system | Physics | 22 | Expired |
| US5742153A | Coasting power supply for AC power system waveform measuring instrument | Physics | 22 | Expired |
| US5581471A | Method and apparatus for storing electric power measurements | Physics | 21 | Expired |
| US5471401A | Waveform library for characterizing an AC power line spectrum | Physics | 18 | Expired |
| US5408523A | Electronic remote data recorder with facsimile output for utility AC power systems | Electricity | 16 | Expired |
| US5526694A | Instrument for detecting hidden structural damage in multi-story buildings | Physics | 11 | Expired |
| US5789677A | Dual-axis force feedback accelerometer | Physics | 7 | Expired |
| US6285169A | Sag generator with switch-mode impedance | Physics | 7 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.