Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5886429 | Voltage sag/swell testing station | Ricardo Chan, Gregorio C-Y Chung, David Gerez, William Blane Leuschner, George P. Olson | 1999-03-23 |
| 5302890 | Harmonic-adjusted power factor meter | Alexander McEachern | 1994-04-12 |
| 5298855 | Harmonic-adjusted power factor meter | Alexander McEachern | 1994-03-29 |
| 5298856 | Harmonic-adjusted power factor meter | Alexander McEachern | 1994-03-29 |
| 5212441 | Harmonic-adjusted power factor meter | Alexander McEachern | 1993-05-18 |