Issued Patents 2017
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9794694 | Parametric in-ear impedance matching device | Elwood G. Norris, James Barnes | 2017-10-17 |
| 9780753 | Adaptive equalization for an ultrasonic audio system | Elwood G. Norris | 2017-10-03 |
| 9769573 | Transparent parametric transducer and related methods | David S. Hecht, Elwood G. Norris, Mark Norris | 2017-09-19 |
| 9667173 | Electrostatic parametric transducer and related methods | Mark Norris, Elwood G. Norris | 2017-05-30 |
| 9661423 | Transparent parametric emitter | David S. Hecht, Elwood G. Norris, Mark Norris | 2017-05-23 |
| 9654229 | Parametric transducer microphone system | Elwood G. Norris | 2017-05-16 |
| 9635466 | Parametric in-ear impedance matching device | Elwood G. Norris | 2017-04-25 |
| 9596529 | Parametric transducer with adaptive carrier amplitude | Elwood G. Norris | 2017-03-14 |