Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6405728 | Breathing apparatus | Maurice Van Hall, David Ian Middleton, Henri Schwegman, James Leslie McMillan | 2002-06-18 |
| 5954250 | Harnesses | Maurice Van Hall, David Ian Middleton, Henri Schwegman, James Leslie McMillan | 1999-09-21 |