Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7967681 | System and method for providing enhanced amusement game tournament play | Lonnie Ropp, Keith D. Johnson, Dwight Sullivan | 2011-06-28 |
| 7070506 | System and method for providing pinball machine tournament play | Lonnie Ropp, Dwight Sullivan | 2006-07-04 |