IGT
4,299Patents
3,477Active
4,299Granted
71Portfolio score
Filing activity: Jul 22, 1982 → Apr 1, 2025 · 949 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6652378B2 | Gaming machines and systems offering simultaneous play of multiple games and methods of gaming | Physics | 995 | Expired |
| US6846238B2 | Wireless game player | Physics | 992 | Expired |
| US5326104A | Secure automated electronic casino gaming system | Physics | 958 | Expired |
| US4837728A | Multiple progressive gaming system that freezes payouts at start of game | Physics | 875 | Expired |
| US6645077B2 | Gaming terminal data repository and information distribution system | Human Necessities | 739 | Expired |
| US6439995B1 | Gaming device having a bonus scheme with multiple selection groups | Physics | 725 | Expired |
| US6328649A | Gaming device having multiple award enhancing levels | Physics | 692 | Expired |
| US6628939B2 | Personal gaming device | Human Necessities | 673 | Expired |
| US6712693B1 | Method and apparatus for player selection of an electronic game payout | Physics | 655 | Expired |
| US6761632B2 | Gaming device having perceived skill | Human Necessities | 633 | Expired |
| US6676522B2 | Gaming system including portable game devices | Human Necessities | 621 | Expired |
| US7326115B2 | Gaming device and method having a first interactive game which determines a function of a second wagering game | Physics | 584 | Expired |
| US6319124A | Gaming device with signified reel symbols | Physics | 562 | Expired |
| US6942574B1 | Method and apparatus for providing entertainment content on a gaming machine | Physics | 558 | Expired |
| US6599193B2 | Progressive gaming device | Physics | 554 | Expired |
| US6905411B2 | Player authentication for cashless gaming machine instruments | Physics | 552 | Expired |
| US6682421B1 | Wireless gaming environment | Human Necessities | 551 | Expired |
| US6394902B1 | Gaming device having different sets of primary and secondary reel symbols | Physics | 539 | Expired |
| US6852031B1 | EZ pay smart card and tickets system | Physics | 527 | Expired |
| US7311605B2 | Player tracking assembly for complete patron tracking for both gaming and non-gaming casino activity | Physics | 526 | Expired |
| US6461241B1 | Gaming device having a primary game scheme involving a symbol generator and secondary award triggering games | Physics | 519 | Expired |
| US6685567B2 | Process verification | Physics | 508 | Expired |
| US6896618B2 | Point of play registration on a gaming machine | Physics | 505 | Expired |
| US6413162B1 | Gaming device having independent reel columns | Physics | 493 | Expired |
| US6506118B1 | Gaming device having improved award offer bonus scheme | Physics | 484 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.