Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6708692 | Demand flow control valve | Charles H. Lee | 2004-03-23 |
| D411297 | Oxygen mask | Richard A. Black | 1999-06-22 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6708692 | Demand flow control valve | Charles H. Lee | 2004-03-23 |
| D411297 | Oxygen mask | Richard A. Black | 1999-06-22 |