Issued Patents 2017
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9744328 | Air filtration device having tuned air distribution system | Britton G. Billingsley, David M. Blomberg | 2017-08-29 |
| 9744329 | Air filtration device having subsections lacking fluid communication | Britton G. Billingsley, David M. Blomberg | 2017-08-29 |