Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10212525 | Universal earpiece | Lawrence T. Hagen, Johan D. Carlson, Randall W. Roberts | 2019-02-19 |
| 9398362 | Universal earpiece | Lawrence T. Hagen, Johan D. Carlson, Randall W. Roberts | 2016-07-19 |
| D698445 | Earpiece | Randall W. Roberts, Lawrence T. Hagen, D. Johan Carlson | 2014-01-28 |