Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5331301 | Circuit breaker | James M. Early, James J. Shortt, Martin F. Healy, Hendrik A. Bosch, Soedjiemat Fransesco Darmohoetomo +1 more | 1994-07-19 |
| 5200873 | Circuit interrupter | — | 1993-04-06 |
| 5191318 | Loss of neutral detecting circuit | — | 1993-03-02 |
| 5089796 | Earth leakage trip indicator | James J. Shortt | 1992-02-18 |
| 4933801 | Ground fault circuit interrupter | Liam Kenny | 1990-06-12 |
| 4931893 | Loss of neutral or ground protection circuit | Henry J. Zylstra | 1990-06-05 |