Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5655527 | Respiratory mask with floating seal responsive to pressurized gas | Patrick M. Handke | 1997-08-12 |
| 5647357 | Respiratory mask facial seal | Shari S. Barnett, Patrick M. Handke, Kristine K. Sabo | 1997-07-15 |
| 5592938 | Mask apparatus | Patrick M. Handke | 1997-01-14 |