Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5499625 | Esophageal-tracheal double lumen airway | Michael Frass, Gregor Dean Long, John S. Kline, David S. Sheridan, E. David Fink +1 more | 1996-03-19 |
| 4844080 | Ultrasound contact medium dispenser | Michael Frass | 1989-07-04 |
| 4688568 | Respiratory tube or airway | Michael Frass, Jonas Zahler | 1987-08-25 |