Issued Patents 2017
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D805257 | Hearing protector headband | Edvard B. E. Maansson, Gregory G. Jager, Douglas D. Fletcher, Angela L. Pan, Eric O. Hemberg +1 more | 2017-12-12 |
| D795801 | Battery pack | Douglas D. Fletcher, Eric O. Hemberg | 2017-08-29 |
| 9628897 | Adaptive frequency response, adaptive automatic level control and handling radio communications for a hearing protector | Douglas D. Fletcher, Eric O. Hemberg | 2017-04-18 |
| 9564283 | Limiting migration of target material | Tomi Tuohimaa, Per Takman | 2017-02-07 |