Monitoring system for use with amusement game devices
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Issued on: 02/07/1978
Inventor: Lucero , et al.
Automatic phonograph bonus award system
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Issued on: 03/31/1981
Inventor: Rockola , et al.
Cash accounting and surveillance system for games
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Issued on: 08/11/1981
Inventor: Lucero , et al.
Entertainment machines
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Issued on: 06/22/1982
Inventor: Wain
Remote gaming system
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Issued on: 08/21/1984
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Gaming device having random multiple payouts
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Issued on: 11/25/1986
Inventor: Kaufman
Poker machine communication system
Patent #: 4636951
Issued on: 01/13/1987
Inventor: Harlick
Video gaming system with pool prize structures
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Issued on: 03/24/1987
Inventor: Koza , et al.
Control device for game machine
Patent #: 4679143
Issued on: 07/07/1987
Inventor: Hagiwara
Optical card reader utilizing area image processing
Patent #: 4760247
Issued on: 07/26/1988
Inventor: Keane , et al.
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Combined fixed price and expected dividend betting system
Patent #: 4775937
Issued on: 10/04/1988
Inventor: Bell
Slot machine
Patent #: 4805907
Issued on: 02/21/1989
Inventor: Hagiwara
Multiple progressive gaming system that freezes payouts at start of game
Patent #: 4837728
Issued on: 06/06/1989
Inventor: Barrie , et al.
Control apparatus for game machines
Patent #: 4964638
Issued on: 10/23/1990
Inventor: Ishida
Gaming machine with a plateaued pay schedule
Patent #: 4991848
Issued on: 02/12/1991
Inventor: Greenwood, et al.
Apparatus and method for providing credit for operating a gaming machine
Patent #: 5038022
Issued on: 08/06/1991
Inventor: Lucero
Roulette apparatus
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Issued on: 08/27/1991
Inventor: Williams
Electronic gaming apparatus
Patent #: 5096195
Issued on: 03/17/1992
Inventor: Gimmon
Apparatus and method for reading data encoded on circular objects, such as gaming chips
Patent #: 5103081
Issued on: 04/07/1992
Inventor: Fisher, et al.
Progressive jackpot gaming system linking gaming machines with different hit frequencies and denominations
Patent #: 5116055
Issued on: 05/26/1992
Inventor: Tracy
Gaming machine with dynamic pay schedule
Patent #: 5123649
Issued on: 06/23/1992
Inventor: Tiberio
Game machine data transfer system utilizing portable data units
Patent #: 5179517
Issued on: 01/12/1993
Inventor: Sarbin, et al.
Prize award system for coin laundry
Patent #: 5217224
Issued on: 06/08/1993
Inventor: Sincock
Progressive gaming control and communication system
Patent #: 5249800
Issued on: 10/05/1993
Inventor: Hilgendorf, et al.
Audit and pricing system for coin-operated games
Patent #: 5257179
Issued on: 10/26/1993
Inventor: DeMar
Cashless gaming apparatus and method
Patent #: 5265874
Issued on: 11/30/1993
Inventor: Dickinson, et al.
Gaming system with progressive jackpot
Patent #: 5280909
Issued on: 01/25/1994
Inventor: Tracy
Secure automated electronic casino gaming system
Patent #: 5326104
Issued on: 07/05/1994
Inventor: Pease, et al.
Progressive jackpot gaming system with enhanced accumulator
Patent #: 5344144
Issued on: 09/06/1994
Inventor: Canon
Coin-operated entertainment machine
Patent #: 5370306
Issued on: 12/06/1994
Inventor: Schulze, et al.
Gaming machine information, communication and display system
Patent #: 5429361
Issued on: 07/04/1995
Inventor: Raven, et al.
Game machine accounting and monitoring system
Patent #: 5470079
Issued on: 11/28/1995
Inventor: LeStrange, et al.
Gaming machine having dynamic payout amounts
Patent #: 5494287
Issued on: 02/27/1996
Inventor: Manz
Progressive system for a match number game and method therefor
Patent #: 5536016
Issued on: 07/16/1996
Inventor: Thompson
Time and attendance system and method therefor
Patent #: 5550359
Issued on: 08/27/1996
Inventor: Bennett
Electronic game promotion device Patent #: 5551692
Issued on: 09/03/1996
Inventor: Pettit, et al.