...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 8123605 | Games, gaming machines, systems and method having an accumulation/matching bonus A method of operating a game controlled by a gaming machine includes accepting a wager from a player, presenting a primary game, awarding any primary game awards to the player, and upon a triggering event, presenting a feature game. The feature game includes perform... | 02/28/2012 |
| 8113939 | Gaming device and method providing relatively large awards with variable player participation levels An improved number matching game is provided. The game includes a matching game with multiple number sets. A player can win standard Keno paytable awards in addition to relatively large awards. A player's initial set has a minimum size requirement for the player to ... | 02/14/2012 |
| 8075387 | Multiplier for lottery game An improved multiplier for a lottery game is provided. In connection with a base lottery game, each player receives or selects a multiplier indicia (or other bonus indicia) from a pool of multiplier indicia. In addition to drawings for the base game, a drawing of mu... | 12/13/2011 |
| 8075386 | Method and a surface for playing a wagering game of chance A method and a surface for playing a wagering game of chance against a house in which the player selects at least one indicia from each of two or more groups of a first indicia, and at least one indicia from a plurality of second indicia associated with each group. ... | 12/13/2011 |
| 8070584 | Matrix game involving an award based on non-highlighted grid positions In one embodiment, the invention is a secondary game played concurrently with a conventional Keno game. In Keno, a player selects a plurality of numbers (e.g., 4-20) within an M×N grid (e.g., 8×10) of different numbers. A random number generator randomly selects a... | 12/06/2011 |
| 8038522 | Spin keno Apparatus and method for playing a Keno type game. The game consists of a plurality of elements, wherein a player specifies the number of game elements (such as the number of stop positions in a reel-type gaming machine), in the same way that the player would decide... | 10/18/2011 |
| 7980942 | System and method for playing a role-playing game A method and apparatus for playing a variation of keno in which the game player pays to play through any number of methods, reveals whether the player has a winning number of matches by playing a solitaire game, and then receives the appropriate winnings if any. The... | 07/19/2011 |
| 7934986 | Method and apparatus for redeeming keno tickets A method and apparatus is provide for playing keno-type games wherein a player can redeem a winning ticket remotely (e.g., over the Internet, by email or phone, etc.) instead of having to return to a point of purchase of the ticket to redeem the ticket. The keno-typ... | 05/03/2011 |
| 7901282 | Gaming device having competitive/bonus matching game A gaming device including a display device, a plurality of different symbols displayable by the display device, a processor, an input device operable with the processor to enable a player to pick a number of the different symbols for the play of the game, the proces... | 03/08/2011 |
| 7878895 | Methods and apparatus for providing a lottery game A gaming apparatus and method of play including a value input device and a controller operatively coupled to the value input device. The controller receives wager data in response to a wager made by a person on a game, with the wager data including a first plurality... | 02/01/2011 |
| 7828642 | Method of operating a grouped selection game A method of operating a game of chance comprising displaying a plurality of groups comprising positions a plurality of selectable objects, each being associated with a hidden value. A player selection of a group and/or a selectable object is received, a group-object... | 11/09/2010 |
| 7798895 | Lottery and gaming systems for playing wagering game with enhanced prize structure derived from multiple plays In one aspect, the invention is directed to a method for conducting a wagering game that may include receiving player input corresponding to at least one first entry for a player for at least one occurrence of the wagering game, randomly selecting a supplemental ent... | 09/21/2010 |
| 7771265 | Method of operating a casino game having a hidden pattern A virtual matrix comprised of a plurality of grid elements is provided, on which a hidden pattern, comprised of a plurality of matrix entries, is randomly placed. A player views a gaming matrix having a plurality of visible positions, each visible position correspon... | 08/10/2010 |
| 7766740 | Methods and apparatus for providing a lottery game A gaming apparatus and method of play including a value input device and a controller operatively coupled to the value input device. The controller receives wager data in response to a wager made by a person on a game, with the wager data including a first plurality... | 08/03/2010 |
| 7682241 | Gaming device having free game Keno The present invention provides an improved Keno game, which provides an opportunity for the player to win free games. In Keno, the player chooses an amount of numbers to play, usually one to fifteen, and plays against the house. The game or house randomly generates ... | 03/23/2010 |
| 7666083 | Gaming device having a free spin game including an accumulated modifier A gaming device including a plurality of reels, where in an unlimited free spin mode, the gaming device causes at least one of the reels to lock or remain stationary when a locking symbol appears on that reel. At least one of the symbols on the reels is associated w... | 02/23/2010 |
| 7628691 | Dynamic paytable for interactive games The invention is a gaming system and method that includes a dynamic paytable. The method operates by enabling a game session that includes a plurality of game events. After each game event, the player is given an opportunity to terminate or continue the game session... | 12/08/2009 |
| 7553230 | Gaming device having matching game with improved display An improved number matching game is provided. The game includes a base matching game. A bonus game is played using randomly determined numbers from the base game that are compared to bonus numbers for a first bonus type and compared to bonus numbers for a second bon... | 06/30/2009 |
| 7481706 | Method for playing Keno with side bets A novel Keno game is disclosed wherein a player selects up to ten numbers from a field of eighty numbers to be played and these numbers are compared to twenty numbers randomly selected by the game from the same field of numbers in a manner known in the prior art. Wh... | 01/27/2009 |
| 7470186 | Gaming device having a game with sequential display of numbers A number matching game which can be employed in both a gaming device and in live gaming at a casino. The player picks one or more numbers from a number pool. The gaming device or house draws randomly at least one number from the pool. An award is provided to the pla... | 12/30/2008 |
| 7431647 | Method of playing a slot machine (“In-A-Row”) The present invention includes a variety of methods to issue awards based upon the order of appearance of symbols in the symbol matrix. An “In-A-Row” embodiment of the present invention displays symbols in random positions of the symbol matrix and issues awards ... | 10/07/2008 |
| 7413511 | Gaming machine with action unit container A gaming device having a container with at least one moveable object located within, one or more game elements capable of receiving and isolating the moveable objects, an actuator configured to attract the moveable objects to receptacle game elements, a game apparat... | 08/19/2008 |
| 7410419 | Gaming machine having a crap slot game play scheme The present invention is a gaming machine and method for conducting a crap slot game. The gaming machine includes a first display for displaying a slot game outcome and a second display for displaying a player interactive wagering interface. The method includes dete... | 08/12/2008 |
| 7402102 | Gaming device having multiple symbols at a single symbol position A gaming device including a plurality of reels having a plurality of symbols including at least one replicator symbol. The replicator symbol includes at least two of the same symbols in a single symbol position on the reels. The replicator symbol may include any sui... | 07/22/2008 |
| 7399227 | Central determination gaming system with a keno game A central determination gaming system with a keno game. Upon a player initiating a game play at gaming terminal, the gaming terminal enables the player to select a plurality of symbols. The gaming terminal accesses a standard set of predefined symbols for the specif... | 07/15/2008 |
| 7399226 | Matching symbol game associated with slot machine A gaming apparatus has the ability to provide multiple winning events in a single play of an event. The apparatus may have a housing with a microprocessor, a first gaming display that displays at least one symbol from a first set of symbols, wherein predetermined sy... | 07/15/2008 |
| 7399225 | Gaming device having transformable wild symbols or cards with wild signal indicators A gaming device having a transformable wild symbol or card on a set of reels or a transformable wild card in a set of cards, wherein the transformable wild symbol or card provides a signal to a player through a wild indicator or a non-wild indicator. The wild indica... | 07/15/2008 |
| 7393280 | Class of feature event games suitable for linking to multiple gaming machines A gaming method, apparatus and system for playing a game of chance is disclosed in which a plurality of gaming machines may be linked together for mutually competitive play. According to one embodiment, two or more gaming machines are linked to a centrally located d... | 07/01/2008 |
| 7390259 | Gaming apparatus including a variable display, a backlight, a reflecting cover to directly illuminate game symbols, and a controller to control the varying of the variable display The gaming apparatus of the present invention comprises a variable display unit configured to variably display a plurality of symbols, a front side display unit located in front of the variable display unit and configured to enable viewing of the symbols displayed b... | 06/24/2008 |
| 7380791 | Gaming machine using controllable LEDs for reel strip illumination A backlight for a reel assembly is disclosed comprising a plurality of light emitting diodes (LEDs). An array of red, green, and blue diodes are positioned behind a translucent reel strip to backlight three adjacent symbols on a reel strip. The LEDs are individually... | 06/03/2008 |
| 7374172 | Gaming devices and methods of playing card games with indicator of cards played from previous hands Gaming devices and methods of playing games wherein an indication of the cards which have already been discarded or dealt is displayed for a player to view prior to making a decision. One embodiment is directed to a gaming device comprising a video display which is ... | 05/20/2008 |
| 7374485 | Gaming machine with player predictable volatility A gaming machine has a display and a game controller arranged to control images of symbols displayed on the display. The game controller is arranged to play a game wherein at least one random event is caused to be displayed on the display. If a predefined winning ev... | 05/20/2008 |
| 7367886 | Gaming system with surround sound An electronic gaming system comprises a gaming terminal and a speaker arrangement. The gaming terminal conducts a wagering game. The speaker arrangement emits audio associated with the wagering game in surround sound relative to a player in front of the gaming termi... | 05/06/2008 |
| 7364159 | System and method for presenting payouts in gaming systems A system and method for facilitating a shell game activity as a primary or secondary/bonus gaming activity in a mechanistic, electronic, or combined mechanistic/electronic manner. Embodiments of methods for presenting gaming payouts involve providing an automated sh... | 04/29/2008 |
| 7364508 | Gaming machine environment having controlled audio and visual media presentation A gaming machine system comprises a game cabinet, a processor, and an audio/visual effects system. The game cabinet receives inputs and displays outputs. The processor is located within the cabinet and randomly selects a game outcome in response to a wager. The proc... | 04/29/2008 |
| 7364506 | Gaming machine with a graphical indicator A wagering game in which a graphical indicator may be used to identify a positive outcome, or a negative outcome, or where multiple graphical indicators may be used to identify and distinguish both positive and negative outcomes in a selection game, which has a plur... | 04/29/2008 |
| 7364507 | Gaming device having an offer/acceptance game with multi-offer symbol The present invention is a gaming device and preferably a bonus round game of a gaming device that enables a player to initiate a randomly generated number, wherein said number determines the number of positions that a position marker will move along an enclosed pat... | 04/29/2008 |
| 7362862 | Methods and apparatus for awarding prizes based on authentication of computer generated outcomes using coupons The present invention provides authentication of computer generated game or test results (“outcomes”), and a system by which persons who play games or take tests on a game or testing computer, respectively, may submit the outcomes of the games or tests to a cent... | 04/22/2008 |
| 7361087 | Gaming device having high-low game A gaming device that randomly generates and displays a set of different amounts on a display device. In one embodiment, the game generates three amounts. The game asks the player to pick one of the amounts for which the player thinks that the game will generate a co... | 04/22/2008 |
| 7357712 | Method and gaming device of operating a multiple round game that includes diminishing selection sets A method of controlling a gaming device is provided in which a set of a plurality of selections is displayed. The player is enabled to pick one of the selections. After one of the selections is picked by the player, an award is generated and provided from an award p... | 04/15/2008 |