Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5692493 | Tongue Protector | Lawrence A. Weinstein, Beverly J. Wallace, Fredrick M. Richards, David R. Autote | 1997-12-02 |
| 5598839 | Positive expiratory pressure device | Rex A. Niles, Ronald McHenry, Stephen J. Scheuermann | 1997-02-04 |