|
| US3947037 | 23 janv. 1975 | 30 mars 1976 | | Board game apparatus |
| US4391448 | 19 janv. 1981 | 5 juil. 1983 | | Method of playing a two-player board game |
| US5340114 | 3 mai 1993 | 23 août 1994 | | Checker bottom single, dual, or triple indicator |
| US5467995 | 5 août 1994 | 21 nov. 1995 | | More challenging backgammon type game |
| US5683089 | 26 juil. 1996 | 4 nov. 1997 | | Numerically-scored chess-like board game |
| US5833237 | 1 oct. 1996 | 10 nov. 1998 | | Kinetic dice and numbered playing cards |
