Issued Patents 2017
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9794694 | Parametric in-ear impedance matching device | Elwood G. Norris, Brian Kappus | 2017-10-17 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9794694 | Parametric in-ear impedance matching device | Elwood G. Norris, Brian Kappus | 2017-10-17 |