Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5699570 | Pressure relief valve vent line mattress system and method | John W. Wilkinson | 1997-12-23 |
| 5652985 | Self-adjusting pressure relief support system and methodology | John W. Wilkinson, Thomas S. Hargest | 1997-08-05 |
| 5649331 | Self-adjusting pressure relief support system and methodology | John W. Wilkinson, Thomas S. Hargest | 1997-07-22 |