Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4479111 | Photo-optical switch apparatus | Craig C. Madsen, Daniel B. Stewart | 1984-10-23 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4479111 | Photo-optical switch apparatus | Craig C. Madsen, Daniel B. Stewart | 1984-10-23 |