Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D311232 | Ankle exerciser or similar article | Denis Burke Drennan | 1990-10-09 |
| 4372300 | Cast wedge | Denis Burke Drennan, Thomas R. Schleicher | 1983-02-08 |
| 4315504 | Elbow suspension device | Dennis B. Drennan, Thomas R. Schleicher | 1982-02-16 |
| 4186738 | Heel supporting boot for bed patients | Thomas R. Schleicher, Denis Burke Drennan | 1980-02-05 |