Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7984716 | Self-conforming sound attenuation earplug | Ricky W. Purcell, Steven Craig Gehling, Waihong Leong, Anne C. Moser, Sean S. Corbin | 2011-07-26 |
| 7886745 | Self-fitting device for location in an ear canal | Ricky W. Purcell, Thomas Wozny, Kenneth M. Ross | 2011-02-15 |