Issued Patents 2024
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12128259 | Respirator negative pressure fit check devices and methods | William A. Mittelstadt, Carl W. Raines, III, David R. Stein, David M. Blomberg, Michael J. Cowell +6 more | 2024-10-29 |
| 11992078 | Headwear suspension attachment element | David M. Castiglione, Michael J. Cowell, William A. Mittelstadt, Jill E. Gulliver, Ian Kelsall +3 more | 2024-05-28 |