Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5536082 | Game playfield mounting system | Steve Ritchie, Peter J. Piotrowski | 1996-07-16 |
| 5415403 | Magnetic ball lock for a pinball game | Steve Ritchie | 1995-05-16 |
| 5358243 | Ball trough for pinball games | Brian Eddy | 1994-10-25 |
| 5350174 | Below the playfield ball delivery system for a pinball game | Steve Ritchie | 1994-09-27 |
| D335150 | Trigger handle switch for pinball type games | Steven Ritchie | 1993-04-27 |
| 5186462 | Oscillating ball cannon | Steve Ritchie, Dwight Sullivan | 1993-02-16 |
| 5158291 | Ball accelerator for rolling ball games | Charles R. Bleich, Manu Jayswal, Walter E. Smolucha | 1992-10-27 |