Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6400543 | Electronic trip unit with user-adjustable sensitivity to current spikes | Alan J. Messerli | 2002-06-04 |
| 6262872 | Electronic trip unit with user-adjustable sensitivity to current spikes | Alan J. Messerli | 2001-07-17 |