Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4211249 | Liquid level control system | — | 1980-07-08 |
| 4201225 | Method and apparatus for measuring stimulated acoustic reflex latency time | James W. Bethea, III, O. Clayton Mitchell | 1980-05-06 |