|
| US4052057 | 20 Ago 1975 | 4 Oct 1977 | | Electronic amusement machine |
| US4060242 | 21 Ago 1975 | 29 Nov 1977 | | Electronic game apparatus |
| US4087092 | 7 Oct 1976 | 2 May 1978 | Tele Vend Inc.
SOI | Random generator instant game and method |
| US4095785 | 19 Ene 1977 | 20 Jun 1978 | | Manually indexed electronic matching game |
| US4101129 | 15 Abr 1976 | 18 Jul 1978 | Bell-Fruit Manufacturing Company Limited | Gaming machines |
| US4157829 | 22 Oct 1976 | 12 Jun 1979 | System Operations, Inc. | Instant lottery game employing vending machines which are centrally controlled by computers |
| US4169588 | 5 Dic 1977 | 2 Oct 1979 | The Gillette Company | Electronically controlled exercising machine |
| US4171135 | 14 Feb 1978 | 16 Oct 1979 | | Chance based submarine hunting game |
| US4206920 | 4 Nov 1977 | 10 Jun 1980 | | Multiple digit electronic game |
| US4277064 | 6 Nov 1978 | 7 Jul 1981 | Compu-Pic Incorporated | Lottery number generating method and apparatus |
| US4285517 | 9 Feb 1979 | 25 Ago 1981 | Marvin Glass & Associates | Adaptive microcomputer controlled game |
| US4299388 | 20 Jun 1979 | 10 Nov 1981 | Concorde Manufacturing Company | Apparatus for controlling a reeled chance based amusement device |
| US4322073 | 27 Oct 1978 | 30 Mar 1982 | Nuvatec/Inc. | Electronic game apparatus |
| US4339134 | 5 Jul 1977 | 13 Jul 1982 | Rockwell International Corporation | Electronic card game |
| US4340223 | 30 Ene 1981 | 20 Jul 1982 | Marvin Glass & Associates | Microcomputer controlled reaction game |
| US4355802 | 17 Mar 1981 | 26 Oct 1982 | Montana Billiard Supply | Billiard table |
| US4357659 | 15 Oct 1979 | 2 Nov 1982 | | Roulette betting calculator |
| US4373723 | 19 Sep 1980 | 15 Feb 1983 | | Amusement apparatus |
| US4373726 | 25 Ago 1980 | 15 Feb 1983 | Datatrol Inc. | Automatic gaming system |
| US4441515 | 10 Jul 1981 | 10 Abr 1984 | Chance Manufacturing, Inc. | Gaming device including coin dispensing means |
| US4501422 | 2 Dic 1982 | 26 Feb 1985 | | Apparatus for playing a game of skill |
| US4511138 | 12 Ago 1982 | 16 Abr 1985 | Sharp Kabushiki Kaisha | Game calculating apparatus |
| US4527798 | 23 Feb 1981 | 9 Jul 1985 | Video Turf Incorporated | Random number generating techniques and gaming equipment employing such techniques |
| US4618150 | 6 Mar 1985 | 21 Oct 1986 | Kabushiki Kaisha Universal | Game machine with selective stop means for moving display |
| US4648600 | 3 Feb 1976 | 10 Mar 1987 | Bally Manufacturing Corporation | Video slot machine |
| US4662637 | 2 Ago 1985 | 5 May 1987 | Churkendoose, Incorporated | Method of playing a card selection game |
| US4669730 | 5 Nov 1984 | 2 Jun 1987 | | Automated sweepstakes-type game |
| US4695053 | 7 Mar 1986 | 22 Sep 1987 | Bally Manufacturing Corporation | Gaming device having player selectable winning combinations |
| US4756531 | 17 Ago 1987 | 12 Jul 1988 | | Apparatus and process for multiple wins in one game |
| US4760527 | 5 Jun 1986 | 26 Jul 1988 | | System for interactively playing poker with a plurality of players |
| US4773647 | 2 Ago 1984 | 27 Sep 1988 | Kabushiki Kaisha Universal | Slot machine with stop switch enablement after attainment of minimum reel speed |
| US4815741 | 2 Abr 1987 | 28 Mar 1989 | | Automated marketing and gaming systems |
| US4875411 | 16 Mar 1989 | 24 Oct 1989 | | Random lotto marker |
| US4889339 | 7 May 1986 | 26 Dic 1989 | Kabushiki Kaisha Universal | Slot machine |
| US5048833 | 1 Mar 1990 | 17 Sep 1991 | | Apparatus for detecting a series of game outcomes |
| US5060941 | 13 Mar 1990 | 29 Oct 1991 | | Electronic reaction-time game toy |
| US5085435 | 7 Nov 1990 | 4 Feb 1992 | | Method of using a random number supplier for the purpose of reducing currency handling |
| US5186460 | 7 Ago 1991 | 16 Feb 1993 | | Computer-controlled racing game |
| US5192076 | 14 Nov 1991 | 9 Mar 1993 | Sigma, Inc. | Keno game playing apparatus |
| US5269521 | 13 Dic 1991 | 14 Dic 1993 | | Expected value payment method and system for reducing the expected per unit costs of paying and/or receiving a given amount of a commodity |
| US5620182 | 13 Dic 1993 | 15 Abr 1997 | | Expected value payment method and system for reducing the expected per unit costs of paying and/or receiving a given ammount of a commodity |
| US5803748 | 30 Sep 1996 | 8 Sep 1998 | Publications International, Ltd. | Apparatus for producing audible sounds in response to visual indicia |
| US5988638 | 21 Oct 1997 | 23 Nov 1999 | Unislot, Inc. | Reel type slot machine utilizing random number generator for selecting game result |
| US6003867 | 21 Oct 1997 | 21 Dic 1999 | Unislot, Inc. | Reel type slot machine utilizing time-based random game result selection means |
| US6012982 | 7 Oct 1996 | 11 Ene 2000 | Sigma Game Inc. | Bonus award feature in linked gaming machines having a common feature controller |
| US6041215 | 31 Mar 1998 | 21 Mar 2000 | Publications International, Ltd. | Method for making an electronic book for producing audible sounds in response to visual indicia |
| US6095921 | 7 Abr 1998 | 1 Ago 2000 | Walker Digital, LLC | Electronic amusement device and method for operating a game offering continuous reels |
| US6168523 | 13 Jul 1998 | 2 Ene 2001 | Sigma Game Inc. | Bonus award feature in a gaming machine |
| US6174235 | 30 Dic 1997 | 16 Ene 2001 | Walker Digital, LLC | Method and apparatus for directing a game with user-selected elements |
| US6331143 | 5 Jun 1997 | 18 Dic 2001 | Shuffle Master, Inc. | Video numbers game |
| US6561902 | 27 Nov 2000 | 13 May 2003 | Walker Digital, LLC | Method and apparatus for directing a game with user-selected elements |
| US6579178 | 24 May 2000 | 17 Jun 2003 | Walker Digital, LLC | Electronic amusement device and method for operating a game offering reels having puzzle pieces |
| US6721423 | 28 Ene 1999 | 13 Abr 2004 | | Lost cost countermeasures against compromising electromagnetic computer emanations |
| US6984173 | 15 Jul 1998 | 10 Ene 2006 | Multimedia Games, Inc. | Slot machine using a count valve to award bonus game |
| US7004834 | 25 Feb 2003 | 28 Feb 2006 | Walker Digital, LLC | System and method for facilitating play of a game with user-selected elements |
| US7311603 | 8 Jun 2005 | 25 Dic 2007 | Walker Digital, LLC | Electronic amusement device and method for operating a game offering continuous reels |
| US7717787 | 15 Oct 2007 | 18 May 2010 | IGT | Electronic amusement device and method for operating a game offering continuous reels |
| US7744458 | 31 Ago 2005 | 29 Jun 2010 | IGT | Slot machine game having a plurality of ways for a user to obtain payouts based on selection of one or more symbols (power pays) |
| US7785191 | 31 Ago 2005 | 31 Ago 2010 | IGT | Slot machine game having a plurality of ways for a user to obtain payouts based on selection of one or more symbols (power pays) |
| US7909690 | 8 Ago 2006 | 22 Mar 2011 | IGT | Gaming device and method providing calculated reel symbol evaluation |
| US7976025 | 4 May 2006 | 12 Jul 2011 | Waterleaf Limited | Domino roulette |
| US8016289 | 14 Abr 2010 | 13 Sep 2011 | IGT | Electronic amusement device and method for operating a game offering continuous reels |
| US8187084 | 23 Ago 2011 | 29 May 2012 | IGT | Electronic amusement device and method for operating a game offering continuous reels |
| US8221219 | 5 May 2011 | 17 Jul 2012 | | Gaming machine displaying one wagered-on game symbol and method of play |
| USD245527 | 6 Feb 1976 | 23 Ago 1977 | | Game cabinet |
| USD313051 | 18 Ago 1987 | 18 Dic 1990 | | Combined random number electronic gaming and coupon dispensing machine |
