Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8333260 | Deep insertion vented earpiece system | Karl Cartwright, Kris Cartwright | 2012-12-18 |
| 7784583 | Deep insertion vented earpiece system | Karl Cartwright, Kris Cartwright | 2010-08-31 |