Issued Patents All Time
Showing 26–34 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5298855 | Harmonic-adjusted power factor meter | W. Mack Grady | 1994-03-29 |
| 5298854 | Harmonic-adjusted watt-hour meter | William A. Moncrief | 1994-03-29 |
| 5298859 | Harmonic-adjusted watt-hour meter | William A. Moncrief | 1994-03-29 |
| 5270637 | Impulse direction detector for ac power systems | Richard Piehl | 1993-12-14 |
| 5212441 | Harmonic-adjusted power factor meter | W. Mack Grady | 1993-05-18 |
| 5184066 | Method and apparatus for disabling all operations of an electronic instrument except for an automatic test procedure | Jamie Nicholson, Craig Waterman | 1993-02-02 |
| 5089979 | Apparatus for digital calibration of detachable transducers | Frederic W. Nitz, Scott Terry | 1992-02-18 |
| 4694402 | Waveform disturbance detection apparatus and method | Frederic W. Nitz | 1987-09-15 |
| 4642563 | Power line impulse measurement system | Steve Terry | 1987-02-10 |