Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6437554 | High current measurement system incorporating an air-core transducer | Philip L. Atwater, James DeHaan | 2002-08-20 |
| 4903163 | Directional harmonic overcurrent relay device | Philip L. Atwater | 1990-02-20 |
| 4891576 | Ground-based transmission line conductor motion sensor | Umberto Milano | 1990-01-02 |
| 4243970 | Open circuit alarm | Patrick C. Hardee | 1981-01-06 |