Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5036846 | Crew oxygen mask with pneumatic comfort adjustment | Charles C. Aulgur, David A. DiPasquale, Thomas K. McDonald | 1991-08-06 |
| 4915106 | Crew oxygen mask with pneumatic comfort adjustment | Charles C. Aulgur, David A. DiPasquale, Thomas K. McDonald | 1990-04-10 |