|
| US4052074 | 12 Dic 1975 | 4 Oct 1977 | | Two-side viewable kaleidosymmetric morphological puzzle game |
| US4336664 | 14 Jul 1977 | 29 Jun 1982 | Compak System, Inc. | Promotional puzzle |
| US4486018 | 11 Mar 1983 | 4 Dic 1984 | | Puzzle and transparent container therefore |
| US4836381 | 22 Feb 1985 | 6 Jun 1989 | | Patterned art apparatus and method |
| US4854591 | 6 Feb 1987 | 8 Ago 1989 | | Three dimensional puzzle employing a reflective surface |
| US4938472 | 23 Ene 1989 | 3 Jul 1990 | | Game with stacking pieces on inclined surfaces |
| US5213507 | 9 Oct 1992 | 25 May 1993 | | Instructional child's story and picture book |
| US5269524 | 25 Nov 1991 | 14 Dic 1993 | | Game board with support mechanism |
| US5746430 | 18 Feb 1997 | 5 May 1998 | | Magnetic tangram puzzle game assembly |
| US5906491 | 26 Mar 1997 | 25 May 1999 | | Geography teaching apparatus |
| US6010338 | 10 Dic 1997 | 4 Ene 2000 | | Magnetic frame kit |
| US6050604 | 14 Ene 1999 | 18 Abr 2000 | Pt. Pabrik Kertas Tjiwi Kimia Tkk. | Coloring book with pop-up figures |
| US6213465 | 19 Nov 1999 | 10 Abr 2001 | | Entertainment kit |
| US6336631 | 7 Jul 2000 | 8 Ene 2002 | | Two-sided puzzle |
| US6343934 | 21 Nov 1997 | 5 Feb 2002 | | Method and apparatus for transferring or applying a drawing to a surface |
| US6435503 | 16 Nov 2000 | 20 Ago 2002 | | Jigsaw puzzle box easel |
| US6926527 | 15 Ene 2002 | 9 Ago 2005 | | Method and apparatus for transferring or applying a drawing to a surface |
| US6976678 | 8 Ene 2002 | 20 Dic 2005 | | Amusement device completing composite image by reflection |
| US8074989 | 23 Jun 2010 | 13 Dic 2011 | | Puzzle for the physically or visually impaired |
| US8083233 | 4 Feb 2009 | 27 Dic 2011 | Late For The Sky Productions Co., Inc. | Helmet-shape jigsaw puzzle |
| US8191895 | 4 Ago 2009 | 5 Jun 2012 | | Color by symbol picture puzzle kit |
| US8226086 | 22 Sep 2011 | 24 Jul 2012 | Late for the Sky Productions Co., Inc. | Complete inner and outer jigsaw puzzle |
| USD333494 | 16 Ene 1991 | 23 Feb 1993 | | Jigsaw puzzle |
