Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11158154 | Gaming system and method providing optimized audio output | David Small, David Froy, Stefan Keilwert | 2021-10-26 |
| 11011015 | Gaming system and method providing personal audio preference profiles | David Small, David Froy, Stefan Keilwert | 2021-05-18 |
| 10891822 | Gaming machines using holographic imaging | Stefan Keilwert | 2021-01-12 |