Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6695698 | Electro-mechanical coin operated capsule dispensing game system | Bryan P. Hansen, William Pfutzenreuter | 2004-02-24 |
| 6550774 | Electro-mechanical coin operated prize capsule fishing simulator game system | Michael Stroll, Bryan P. Hansen, William Pfutzenreuter | 2003-04-22 |
| 5938195 | Serpentine ramp for a pinball game | Raymond Czajaka, Dan K. P. Lee | 1999-08-17 |
| 5632482 | Vertically disposed multi-level pinball game | — | 1997-05-27 |
| 5501466 | Coin projecting game apparatus | Wallace W. Welch, William F. Triplett, Katherine A. Adams | 1996-03-26 |
| 5474292 | Pinball game ball diverter mechanism | Robert S. Morrison | 1995-12-12 |
| 5383663 | Player controlled dump ramp for a pinball game | Raymond J. Czajka | 1995-01-24 |
| D352738 | Pinball game cabinet | Raymond J. Czajka | 1994-11-22 |
| 5358241 | Helical monorail ramp for a pinball game | Raymond J. Czajka | 1994-10-25 |
| 5356141 | Roulette scoring device | Barry Oursler, Zofia Bil | 1994-10-18 |