|
| US3947024 | 12 Mar 1974 | 30 Mar 1976 | Newtoys, Inc. | Tiretoys |
| US3959937 | 17 Jun 1974 | 1 Jun 1976 | | Modular dome structure |
| US4128104 | 19 Dec 1977 | 5 Dec 1978 | Foy McCullough
Lyle D. Galbraith | Ring structure |
| US4340217 | 22 Dec 1980 | 20 Jul 1982 | | Monkey maze |
| US4984407 | 28 Mar 1990 | 15 Jan 1991 | Kurt Ziehmer | Framework |
| US5137271 | 8 May 1990 | 11 Aug 1992 | American Playtime Systems, Inc. | Modular architectural structure for playgrounds and the like |
| US5177926 | 25 Apr 1991 | 12 Jan 1993 | American Playtime Systems, Inc. | Modular architectural structure for playground and the like |
| USD340274 | 30 Jan 1992 | 12 Oct 1993 | Restaurant Technology, Inc. | Climber |
| USD505159 | 10 Jun 2004 | 17 May 2005 | | Educational walking track |
| USD505978 | 10 Jun 2004 | 7 Jun 2005 | | Educational walking track |
| USD506782 | 10 Jun 2004 | 28 Jun 2005 | | Educational walking track |
| USD507304 | 13 Sep 2004 | 12 Jul 2005 | | Set of borders for educational walking pathways |
| USD507601 | 10 Jun 2004 | 19 Jul 2005 | | Set of borders for educational walking pathways |
| USD555223 | 31 Jul 2006 | 13 Nov 2007 | Tyre Play Systems, Limited | Climbing frame |
