Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11109148 | Isophasic waveguide for a loudspeaker | Steven Desrosiers, Zhao Zuo | 2021-08-31 |
| 10129644 | Systems and methods for adaptive zone control of a large scale audio system | Nathan Butler, Adam David Maxwell Shulman | 2018-11-13 |
| 9911406 | Method and system for large scale audio system | Nathan Butler, Steven Desrosiers, Matthew Joseph Dube, Jeffrey A. Rocha | 2018-03-06 |
| 9661418 | Method and system for large scale audio system | Nathan Butler, Steven Desrosiers, Matthew Joseph Dube, Jeffrey A. Rocha, John Francis Dugan | 2017-05-23 |
| D746264 | Speaker | John Francis Dugan, Matthew Joseph Dube | 2015-12-29 |
| 9219954 | Acoustic horn manifold | Steven Desrosiers | 2015-12-22 |
| 9215524 | Acoustic horn manifold | Steven Desrosiers | 2015-12-15 |
| 8371202 | Method and apparatus for protecting vehicles and personnel against incoming projectiles | Jefferson E. Odhner, John McNeil | 2013-02-12 |