Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7387572 | Gaming machine with a trunnion mounted display | — | 2008-06-17 |
| D508268 | Gaming machine | James M. Rasmussen, Norman R. Wurz, William C. Cesaroni, Robert J. Glenn, II, Jack B. Hough | 2005-08-09 |
| 5477703 | Geothermal cell and recovery system | Harry J. Hanchar | 1995-12-26 |
| 5335910 | Pinball machine having a conveyor belt ball lift | Raymond C. Tanzer | 1994-08-09 |
| 5333866 | Pinball machine having an interactive playfield | Raymond C. Tanzer | 1994-08-02 |
| 5158292 | Pivoting gate and target assembly for a pinball machine | — | 1992-10-27 |
| 4667277 | Indicator lamp assembly | — | 1987-05-19 |
| 4243222 | Seesaw targets apparatus for pinball game | Irwin J. Grabel | 1981-01-06 |