Issued Patents 2021
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11100748 | Systems and methods for electronic gaming in which an active area alternates between sets of reels | Karl Roelofs | 2021-08-24 |
| 10957159 | Gaming machine and method for displaying a free spin count-up | Karl Roelofs, Michael P. Casey | 2021-03-23 |
| 10937269 | Electronic gaming machines with free play multipliers | Karl Roelofs | 2021-03-02 |