Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5822440 | Enhanced concert audio process utilizing a synchronized headgear system | Randy Oltman, Perry L. Nusbaum, Ken Schaffer | 1998-10-13 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5822440 | Enhanced concert audio process utilizing a synchronized headgear system | Randy Oltman, Perry L. Nusbaum, Ken Schaffer | 1998-10-13 |