Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4228412 | Electrical switching apparatus and energizing circuits therefor | Robert Owen, George S. Parmenter | 1980-10-14 |
| 4217634 | Voltage and current sources | Robert Owen | 1980-08-12 |