Issued Patents 2016
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9517367 | Respiratory mask having a clean air inlet chamber | Gary E. Dwyer, William A. Mittelstadt, Carl W. Raines, III, David M. Blomberg, Michael J. Cowell | 2016-12-13 |
| 9510626 | Sleeve-fit respirator cartridge | David M. Blomberg, Michael J. Cowell, William A. Mittelstadt, Carl W. Raines, III | 2016-12-06 |