Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5128883 | Method for absolute position determination of multi-speed devices | David C. Cunningham | 1992-07-07 |
| 4857926 | Phase-responsive angular tracking device | David C. Cunningham | 1989-08-15 |