Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5703745 | System for detection of transients from a coupling capacitor voltage transformer used in a protective relay | Daqing Hou | 1997-12-30 |
| 5694281 | Zero sequence voltage-polarized directional element for protective relays | Armando Guzman-Casillas | 1997-12-02 |
| 5602707 | Detection of transformer high side fuse operations in a power transmission system | Edmund O. Schweitzer, III | 1997-02-11 |