Issued Patents All Time
Showing 26–40 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |
| 9510089 | Dynamic location determination for a directionally controllable parametric emitter | Elwood G. Norris, James Barnes | 2016-11-29 |
| 9432785 | Error correction for ultrasonic audio systems | Elwood G. Norris | 2016-08-30 |
| 9402135 | Magnetostrictive parametric transducer | Elwood G. Norris | 2016-07-26 |
| 9368098 | Parametric emitter system with noise cancelation | Elwood G. Norris | 2016-06-14 |
| 9363597 | Distance-based audio processing for parametric speaker system | Richard Kulavik, Elwood G. Norris | 2016-06-07 |
| 9351083 | Transparent parametric emitter | David S. Hecht, Elwood G. Norris, Mark Norris | 2016-05-24 |
| 9271102 | Multi-dimensional parametric audio system and method | Richard Kulavik, Elwood G. Norris | 2016-02-23 |
| 9258651 | Transparent parametric transducer and related methods | Elwood G. Norris | 2016-02-09 |
| 9002043 | Parametric transducer and related methods | Mark Norris, Elwood G. Norris | 2015-04-07 |
| 8976997 | Transparent parametric emitter | David S. Hecht, Elwood G. Norris, Mark Norris | 2015-03-10 |