Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6061217 | Electrical switching apparatus employing twice-energized trip actuator | Kurt A. Grunert, William E. Beatty, Jr., David H. Groves, David Olszewski, H. Richard Beck +1 more | 2000-05-09 |
| 4801772 | Current limiting circuit interrupter with insulating wedge | Walter V. Bratkowski | 1989-01-31 |
| 4725800 | Circuit breaker with magnetic shunt hold back circuit | Kurt A. Grunert, Stephen A. Mrenna | 1988-02-16 |
| 4419649 | Circuit breaker for use on AC and DC circuits | Eugene J. Walker | 1983-12-06 |
| 4336516 | Circuit breaker with stored energy toggle-lock structure | Walter V. Bratkowski, John A. Wafer | 1982-06-22 |
| 4295025 | Circuit breaker with electromechanical trip means | William E. Beatty, Jr. | 1981-10-13 |
| 4266210 | Circuit breaker with improved arc extinguishing means | Stephen A. Mrenna | 1981-05-05 |