Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6899101 | Logical display for a breathing apparatus mask | David V. Haston, Nicolo J. Luzie, Jr., Carl E. Schaefer, Carl Toft | 2005-05-31 |
| 5357950 | Breath actuated positive pressure demand regulator with override | Max L. Kranz | 1994-10-25 |