06443452 is referenced by 303 patents.

A gaming terminal provides at least a portion of at least one prize in the form of at least one or more free game rounds. A benefit may be calculated as the difference between the value of the prize if paid out in coins or other monetary value and the value paid out as free game rounds. In one aspect, the benefit is redistributed in the paytable, preferably so as to provide a game in which the overall, long-term averaged payback amount is unchanged by the process of converting monetary payouts to free game payouts and redistributing the benefit thereof.

Title
Free game prizing method and apparatus for an electronic gaming terminal
Application Number
9/503562
Publication Number
6443452 (B1)
Application Date
February 14, 2000
Publication Date
September 3, 2002
Inventor
Chris T Brune
Reno
NV, US
Agent
Seyfarth Shaw
US
George H Gerstman
US
Assignee
International Game Technology
NV, US
IPC
G07F 17/34
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