|
| US4017077 | 3 Jul 1975 | 12 Apr 1977 | Bally Manufacturing Corporation | Matrix transformation pin ball machine with score multiplier option |
| US4162793 | 27 Mar 1978 | 31 Jul 1979 | Mattel, Inc. | Game scoring system |
| US4244578 | 29 Jan 1976 | 13 Jan 1981 | | Electronic backgammon |
| US4508343 | 22 Oct 1982 | 2 Apr 1985 | Wico Corporation | Pinball game with randomly operable drop targets |
| US5014991 | 15 Dec 1989 | 14 May 1991 | SMS Manufacturing Co., Ltd. | Amusement game |
| US5700008 | 7 Feb 1997 | 23 Dec 1997 | Williams Electronics Games, Inc. | Amusement device integrating games of skill and chance |
| US5803451 | 17 Sep 1996 | 8 Sep 1998 | RLT Acquisition, Inc. | Arcade game having multiple score indicators |
| US6612573 | 8 Feb 2001 | 2 Sep 2003 | | Electronic game apparatus simulating variable launch power and direction of game object |
| US8197330 | 14 Dec 2007 | 12 Jun 2012 | WMS Gaming Inc. | Gaming system having incrementally activated bonus awards |
| USD325420 | 17 Jan 1990 | 14 Apr 1992 | SMS Manufacturing Corporation | Game cabinet |