Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8764588 | Illuminated game-playing apparatuses and games | — | 2014-07-01 |
| 8573216 | Vertical drop out box method and apparatus | — | 2013-11-05 |
| 6847310 | Keyboard | Joseph Yang | 2005-01-25 |
| D470150 | Hand-held device keypad | Charles R. Lewis, Jr., Joseph Yang, George Crothall | 2003-02-11 |
| D470151 | Hand-held device keyboard | Charles R. Lewis, Jr., Joseph Yang, George Crothall | 2003-02-11 |