Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4641088 | Root mean square measuring device for negative sequence current | — | 1987-02-03 |
| 4275356 | Digital time dependent relay circuitry | Stig Aviander | 1981-06-23 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4641088 | Root mean square measuring device for negative sequence current | — | 1987-02-03 |
| 4275356 | Digital time dependent relay circuitry | Stig Aviander | 1981-06-23 |