WMS GAMING, INC.
979Patents
792Active
979Granted
63Portfolio score
Filing activity: Sep 17, 1993 → Sep 11, 2014 · 504 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6159097A | Gaming machine with variable probability of obtaining bonus game payouts | Physics | 1,216 | Expired |
| US6159098A | Dual-award bonus game for a gaming machine | Physics | 1,203 | Expired |
| US6190255A | Bonus game for a gaming machine | Physics | 1,135 | Expired |
| US6159095A | Video gaming device having multiple stacking features | Human Necessities | 1,131 | Expired |
| US6155925A | Bonus game for gaming machine with payout percentage varying as function of wager | Physics | 994 | Expired |
| US6347996B1 | Gaming machine with concealed image bonus feature | Physics | 926 | Expired |
| US6004207A | Slot machine with incremental pay-off multiplier | Physics | 909 | Expired |
| US6203429A | Gaming machine with bonus mode | Human Necessities | 880 | Expired |
| US6234897A | Gaming device with variable bonus payout feature | Human Necessities | 725 | Expired |
| US6270411A | Gaming machine with animated reel symbols for payoff | Physics | 722 | Expired |
| US6315660A | Gaming machines with board game theme | Human Necessities | 713 | Expired |
| US5449173A | Reel-type slot machine with supplemental payoff | Physics | 711 | Expired |
| US6517433B2 | Reel spinning slot machine with superimposed video image | Electricity | 614 | Expired |
| US6443837B1 | Bonus games for gaming machines with strategy options | Physics | 597 | Expired |
| US6749510B2 | Centralized gaming system with modifiable remote display terminals | Physics | 579 | Expired |
| US6364766B1 | Gaming machine with sorting feature | Physics | 577 | Expired |
| US6254481A | Gaming machine with unified image on multiple video displays | Human Necessities | 557 | Expired |
| US5456465A | Method for determining payoffs in reel-type slot machines | Physics | 555 | Expired |
| US6561904B2 | Decreasing or increasing number of multipliers for a multi-spin slot game | Physics | 528 | Expired |
| US6428412B1 | Gaming machine with interlinked arrangements of puzzle elements | Physics | 448 | Expired |
| US6517432B1 | Gaming machine with moving symbols on symbol array | Emerging Cross-Sectional Technologies | 441 | Expired |
| US6358147B1 | Gaming machine with multiple payoff modes and award presentation schemes | Physics | 430 | Expired |
| US6592457B1 | Gaming machine with player selected events | Human Necessities | 420 | Expired |
| US5401024A | Keno type video gaming device | Physics | 400 | Expired |
| US6322309A | Bonus game for a gaming machine | Physics | 389 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.