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Browse by Category: Main > Entertainment & Recreation
Class Information
Number: 463/21
Name: Amusement devices: games > Including means for processing electronic data (e.g., computer/video game, etc.) > In a chance application > Lot match or lot combination (e.g., roulette, lottery, etc.) > Plural lots (e.g., keno, etc.) > Lot-to-lot combination (e.g., slot machine, etc.) > Having means to alter combination probability
Description: Lot-to-lot combination further including means for adjusting the likelihood of either a match between lots or a particular combination of plural lots.










Patents under this class:
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Patent Number Title Of Patent Date Issued
6589115 Gaming method and apparatus having a proportional payout Jul. 8, 2003
6569017 Method for assigning prizes in bingo-type games May. 27, 2003
6533273 Gaming device and method of playing a game Mar. 18, 2003
6520856 Gaming device and method of operation thereof Feb. 18, 2003
6511376 Systems and methods wherein a gambling result is based on a user input Jan. 28, 2003
6506114 Object drop feature for a gaming machine Jan. 14, 2003
6503146 System and method for facilitating casino team play Jan. 7, 2003
6491584 Gaming machine with re-trigger bonus Dec. 10, 2002
6485367 Self-learning gaming machine Nov. 26, 2002
6471589 Game machine having individual difference in same machine kind Oct. 29, 2002
6468156 Maximum bonus pay schedule method and apparatus for a gaming machine Oct. 22, 2002
6450883 Operation of gaming machines Sep. 17, 2002
6419579 Slot machine - with random line multiplier Jul. 16, 2002
6416408 Method of playing a group participation game Jul. 9, 2002
6398646 Method and system for storing preselected numbers for use in games of bingo Jun. 4, 2002
6394900 Slot reel peripheral device with a peripheral controller therein May. 28, 2002
6386976 Game machine May. 14, 2002
6386975 Wagering game and system for its implementation May. 14, 2002
6377669 Method and apparatus for awarding and redeeming prepaid telephone time Apr. 23, 2002
6347996 Gaming machine with concealed image bonus feature Feb. 19, 2002
6347795 Gaming machine having a reel on which, along a circumference, symbols are applied Feb. 19, 2002
6343988 Systems and methods wherein a gambling result is based on a user input Feb. 5, 2002
6342007 Flush poker game Jan. 29, 2002
6327351 Method and apparatus for awarding and redeeming prepaid telephone time Dec. 4, 2001
6315664 Gaming device having an indicator selection with probability-based outcome Nov. 13, 2001
6309299 Gaming device and method for individual, head to head and tournament play Oct. 30, 2001
6302791 Gaming machine with high volatility index Oct. 16, 2001
6283855 Method for playing a game Sep. 4, 2001
6270412 Slot machine with symbol save feature Aug. 7, 2001
6241607 Non-rectangular and/or non-orthogonal arrangement of gambling elements in a gaming apparatus Jun. 5, 2001
6236900 Method and system for internet-based, competitive event prediction May. 22, 2001
6227970 Slot machine May. 8, 2001
6186894 Reel slot machine Feb. 13, 2001
6068552 Gaming device and method of operation thereof May. 30, 2000
6010404 Method and apparatus for using a player input code to affect a gambling outcome Jan. 4, 2000
6003013 Customer worth differentiation by selective activation of physical instrumentalities within the casino Dec. 14, 1999
5997401 Slot machine with symbol save feature Dec. 7, 1999
5984781 Gaming machine Nov. 16, 1999
5879234 Security system for reel type slot machine with physical mapping to control the win odds Mar. 9, 1999
5833537 Gaming apparatus and method with persistence effect Nov. 10, 1998
5833538 Automatically varying multiple theoretical expectations on a gaming device: apparatus and method Nov. 10, 1998
5823874 Method of playing game and gaming device with an additional payout indicator Oct. 20, 1998
5608785 Method and apparatus for telephone prize opportunities Mar. 4, 1997
5569084 Fractional branching reel-type slot machine Oct. 29, 1996
5547192 Display apparatus for gaming machine Aug. 20, 1996
5524888 Gaming machine having electronic circuit for generating game results with non-uniform probabilities Jun. 11, 1996
5456466 Entertainment machines Oct. 10, 1995
5456465 Method for determining payoffs in reel-type slot machines Oct. 10, 1995
5263716 Multiple tier gaming machine Nov. 23, 1993
5209479 Clot machine May. 11, 1993

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