Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1029788 | Voice masking headphone | Douglas W. Fletcher, Gregory G. Jager, Jacob T. Lusson, Eric O. Hemberg | 2024-06-04 |
| D978443 | Hearing protector | Gregory G. Jager, Douglas D. Fletcher, Eric O. Hemberg, Oscar Hemberg, Anders Hellberg +1 more | 2023-02-14 |
| D766520 | Hearing protector | Douglas D. Fletcher, Nicolas A. Echeverri, Kelly R. Potter, Brenda M. Bonney, Garin G. Ipsen +3 more | 2016-09-13 |