| 
          
            AU711764B2
            (en)
          
          *
          
         | 
        1995-02-17 | 
        1999-10-21 | 
        Bally Gaming International, Inc. | 
        Gaming machine having compound win line 
        | 
      
      
        | 
          
            US7169042B2
            (en)
          
          
          
         | 
        2002-04-30 | 
        2007-01-30 | 
        Igt | 
        Gaming device having extender symbols 
        | 
      
      
        | 
          
            US10089818B2
            (en)
          
          
          
         | 
        2002-04-30 | 
        2018-10-02 | 
        Igt | 
        Gaming device having resultant wild symbols 
        | 
      
      
        | 
          
            US8632390B2
            (en)
          
          
          
         | 
        2002-09-20 | 
        2014-01-21 | 
        Igt | 
        Gaming device having multiple symbols at a single symbol position 
        | 
      
      
        | 
          
            US10388104B2
            (en)
          
          
          
         | 
        2002-09-20 | 
        2019-08-20 | 
        Igt | 
        Gaming device having multiple symbols at a single symbol position 
        | 
      
      
        | 
          
            US9262894B2
            (en)
          
          
          
         | 
        2002-09-20 | 
        2016-02-16 | 
        Igt | 
        Gaming device having multiple symbols at a single symbol position 
        | 
      
      
        | 
          
            US8460084B2
            (en)
          
          *
          
         | 
        2003-06-09 | 
        2013-06-11 | 
        Igt | 
        Gaming device including movable symbol indicator plates 
        | 
      
      
        | 
          
            US7918725B2
            (en)
          
          
          
         | 
        2003-09-10 | 
        2011-04-05 | 
        Igt | 
        Gaming device having symbol revealing mechanism 
        | 
      
      
        | 
          
            US7922573B2
            (en)
          
          
          
         | 
        2003-09-12 | 
        2011-04-12 | 
        Igt | 
        Gaming device having concentric reels including an outer reel with display areas having different sizes and positions 
        | 
      
      
        | 
          
            US7473173B2
            (en)
          
          
          
         | 
        2003-09-12 | 
        2009-01-06 | 
        Igt | 
        Gaming device having concentric reels including an outer reel with display areas having different sizes and positions 
        | 
      
      
        | 
          
            US7601061B2
            (en)
          
          
          
         | 
        2005-02-11 | 
        2009-10-13 | 
        Igt | 
        Gaming machine having independent spinning forms and multiple pay lines 
        | 
      
      
        | 
          
            US7753773B2
            (en)
          
          
          
         | 
        2005-08-26 | 
        2010-07-13 | 
        Igt | 
        Gaming device having physical concentric symbol generators which are operable to provide a plurality of different games to a player 
        | 
      
      
        | 
          
            US9786116B2
            (en)
          
          
          
         | 
        2012-01-19 | 
        2017-10-10 | 
        Igt | 
        Gaming system and method for providing a symbol game 
        | 
      
      
        | 
          
            US10347074B2
            (en)
          
          
          
         | 
        2012-02-22 | 
        2019-07-09 | 
        Igt | 
        Gaming system and method displaying one or more additional symbols of a group of designated symbols when less than all of the designated symbols of the group are displayed 
        | 
      
      
        | 
          
            US11113924B2
            (en)
          
          
          
         | 
        2012-03-12 | 
        2021-09-07 | 
        Igt | 
        Gaming device having extending wild symbols 
        | 
      
      
        | 
          
            US11587391B2
            (en)
          
          
          
         | 
        2012-03-12 | 
        2023-02-21 | 
        Igt | 
        Gaming device having extending wild symbols 
        | 
      
      
        | 
          
            US11749055B2
            (en)
          
          
          
         | 
        2012-03-12 | 
        2023-09-05 | 
        Igt | 
        Gaming device having extending wild symbols 
        | 
      
      
        | 
          
            US9875603B2
            (en)
          
          
          
         | 
        2012-09-25 | 
        2018-01-23 | 
        Igt | 
        Gaming system and method providing a multiplay game with resultant symbols 
        | 
      
      
        | 
          
            US10607448B2
            (en)
          
          
          
         | 
        2012-09-27 | 
        2020-03-31 | 
        Igt | 
        Gaming system and method for providing a cascading multiple sided symbol game 
        | 
      
      
        | 
          
            US9858760B2
            (en)
          
          
          
         | 
        2013-09-12 | 
        2018-01-02 | 
        Igt | 
        Gaming system and method providing a game having a sub-symbol award evaluation 
        | 
      
      
        | 
          
            US10269213B2
            (en)
          
          
          
         | 
        2013-09-12 | 
        2019-04-23 | 
        Igt | 
        Gaming system and method providing a game having a sub-symbol award evaluation 
        | 
      
      
        | 
          
            US10325445B2
            (en)
          
          
          
         | 
        2013-09-12 | 
        2019-06-18 | 
        Igt | 
        Gaming system and method for displaying a plurality of individual symbols at a single symbol display position 
        | 
      
      
        | 
          
            US9824526B2
            (en)
          
          
          
         | 
        2013-09-12 | 
        2017-11-21 | 
        Igt | 
        Gaming system and method for displaying a plurality of individual symbols at a single symbol display position 
        | 
      
      
        | 
          
            US9275523B1
            (en)
          
          
          
         | 
        2013-09-12 | 
        2016-03-01 | 
        Igt | 
        Gaming system and method for displaying a plurality of individual symbols at a single symbol display position 
        |