Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6591203 | Fault locator for radial sub-transmission and distribution systems | Ratan Das | 2003-07-08 |
| 6489773 | Method for synchronizing two power systems using anticipation technique to compensate for breaker closing time | James P. Sagazio | 2002-12-03 |
| 6298309 | Current based frequency tracking method and apparatus | Ratan Das, Cliff Downs | 2001-10-02 |
| 6115675 | Double interpolation anti-skew compensation of sampled analog data points in a protective relay | James Stoupis | 2000-09-05 |
| 6081768 | Digital peak detector | Yi Hu, David G. Hart, James Stoupis | 2000-06-27 |
| 5832413 | Generator protection system and method for phasor estimation and frequency tracking during frequency ramping | Frederick P. Perfect, David G. Hart, James Stoupis | 1998-11-03 |