Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9275521 | Method of adapting a class II game to provide the play characteristics of a class III game | Yi-Chen Chang, Olaf Vancura | 2016-03-01 |
| 9275522 | Method of adapting a class II game to provide the play characteristics of a class III game | Yi-Chen Chang, Olaf Vancura | 2016-03-01 |
| 8439742 | Method of adapting a class II game to provide the play characteristics of a class III game | Yi-Chen Chang, Olaf Vancura | 2013-05-14 |