05833537 is referenced by 835 patents and cites 11 patents.

An electronic gaming device and method is provided in which redefined events result in positioning symbols on a playing field which persist in their location and effect through two or more sequential rounds of a game. Preferably, the symbols can affect the amount of a pay out, although preferably they do not affect whether or not a game has a winning result. Persistent symbols may be removed in response to various events, such as occurrence of a delete symbol, passage of time or playing of a predetermined number of rounds.

Title
Gaming apparatus and method with persistence effect
Application Number
8/723322
Publication Number
5833537
Application Date
September 30, 1996
Publication Date
November 10, 1998
Inventor
Robert Barrie
Merrimack
NH, US
Agent
Sheridan Ross
Assignee
Forever Endeavor Software
NH, US
IPC
A63F 9/22
G07F 17/34
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