Issued Patents All Time
Showing 51–66 of 66 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6750563 | Voltage sag and over-voltage compensation device with pulse-width modulated transformer | Dong-Myung Lee | 2004-06-15 |
| 6597549 | Capacitor switch with external resistor and insertion whip | Raj Anand, Cary J. Ahrano | 2003-07-22 |
| 6583978 | Limited restrike electric power circuit interrupter suitable for use as a line capacitor and load switch | Cary J. Ahrano, Brian Berner | 2003-06-24 |
| 6559562 | Voltage sag and over-voltage compensation device with pulse width modulated autotransformer | — | 2003-05-06 |
| 6483679 | Capacitor switch with external resistor and insertion whip | Raj Anand, Cary J. Ahrano | 2002-11-19 |
| 6316742 | Limited restrike circuit interrupter used as a line capacitor and load switch | Cary J. Ahrano, Brian Berner | 2001-11-13 |
| 6236010 | Circuit interrupter including a penetrating electrical contact with grip and release structure | — | 2001-05-22 |
| 6114778 | High voltage synchronous switch for capacitors | J. P. Werner | 2000-09-05 |
| 5900723 | Voltage based VAR compensation system | — | 1999-05-04 |
| 4972055 | Multiple vacuum interrupter fluid insulated circuit breaker with isolation gap | John R. Perulfi | 1990-11-20 |
| 4654806 | Method and apparatus for monitoring transformers | Thomas D. Poyser, Randall N. Avery, John W. Bankoske, John D. Borst, Clive W. Kimblin +6 more | 1987-03-31 |
| 4510477 | Current transformer | John R. Perulfi | 1985-04-09 |
| 4307274 | Circuit interrupter using dielectric liquid with energy storage | William H. Fischer, Charles F. Cromer, Sylvester J. Dropik, Kent D. Daschke | 1981-12-22 |
| 4288668 | Circuit interrupter using a minimum of dielectric liquid | William H. Fischer, Charles F. Cromer | 1981-09-08 |
| 4273978 | Liquid interrupter module | — | 1981-06-16 |
| 4229627 | Gas puffer type current interrupter and method | — | 1980-10-21 |