Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8590669 | Sound attenuating device using an embedded layer for acoustical tuning | Barry Wyerman, Chuck Zupan | 2013-11-26 |
| 8418806 | Sound attenuating device using an embedded layer for acoustical tuning | Barry Wyerman, Chuck Zupan | 2013-04-16 |