1
Shawn M Van Asdale: Gaming device having symbol stacks. IGT, Bell Boyd & Lloyd, August 7, 2007: US07252591 (163 worldwide citation)

A gaming device is provided including a set of symbols on a plurality of reels and a symbol stack that includes an initially displayed symbol and at least one initially hidden symbol. In one embodiment, the hidden symbols are stacked beneath the displayed symbol. The initially displayed symbol may b ...


2
Van, Asdale Shawn M: Gaming device having symbol stacks. Igt, MASIA Adam H, February 5, 2004: WO/2004/012161 (2 worldwide citation)

A gaming device is provided including a set of symbols on a plurality of reels and a symbol stack that includes an initially displayed symbol and at least one initially hidden symbol. In one embodiment, the hidden symbols are stacked beneath the displayed symbol. The initially displayed symbol may b ...


3
Van Asdale Shawn M: Gaming device having symbol stacks. Igt Reno Nev, April 6, 2005: GB2406693-A

A gaming device is provided including a set of symbols on a plurality of reels and a symbol stack that includes an initially displayed symbol and at least one initially hidden symbol. In one embodiment, the hidden symbols are stacked beneath the displayed symbol. The initially displayed symbol may b ...


4
Shawn M Van Asdale: Gaming device having symbol stacks. Bell Boyd & Lloyd, February 5, 2004: US20040023714-A1

A gaming device is provided including a set of symbols on a plurality of reels and a symbol stack that includes an initially displayed symbol and at least one initially hidden symbol. In one embodiment, the hidden symbols are stacked beneath the displayed symbol. The initially displayed symbol may b ...