Issued Patents 2017
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9820040 | Sound masking system | John C. Heine | 2017-11-14 |
| 9666174 | System and method for defined area sound masking | Christopher Calisi, Gregory Saunders, Mitchell Nollman, Gordon V. Cook, Stephen Shenefield | 2017-05-30 |
| 9596539 | Wireless sound-emitting device and system for remotely controlling a sound-emitting device | Christopher Calisi, Gordon V. Cook, Edward Driscoll | 2017-03-14 |