|
| US4262463 | 27 Dic 1978 | 21 Abr 1981 | Bureau d'Etudes Techniques J. Hapel & Cie Ingenieurs Conseils Chillou | Pressed blocks for interlocked assembly |
| US4514949 | 6 May 1983 | 7 May 1985 | | Interlocking system for building walls |
| US4627209 | 15 Abr 1985 | 9 Dic 1986 | | Interlocking blocks and construction system comprising said blocks |
| US4965979 | 15 May 1989 | 30 Oct 1990 | | Concrete block wall |
| US4990116 | 26 Jun 1989 | 5 Feb 1991 | | Combining structure for toy blocks |
| US5554062 | 24 May 1995 | 10 Sep 1996 | | Building word blocks |
| US5657600 | 20 Jun 1994 | 19 Ago 1997 | AAB Building Systems Inc. | Web member for concrete form walls |
| US5809727 | 20 Dic 1996 | 22 Sep 1998 | AAB Building System, Inc. | Web member for concrete form walls |
| US5852906 | 7 Ago 1997 | 29 Dic 1998 | | Internal-wall drain system |
| US5960604 | 14 Nov 1997 | 5 Oct 1999 | | Interlocking masonry unit and wall |
| US6033282 | 4 Feb 1999 | 7 Mar 2000 | Youth Toy Enterprise Co., Ltd. | Multipurpose built-up measuring device |
| US6161357 | 23 Feb 2000 | 19 Dic 2000 | | Bidirectionally interlocking, hollow brick wall system |
| US6314697 | 25 Oct 1999 | 13 Nov 2001 | | Concrete form system connector link and method |
| US6318040 | 25 Oct 1999 | 20 Nov 2001 | | Concrete form system and method |
| US6336301 | 25 Oct 1999 | 8 Ene 2002 | | Concrete form system ledge assembly and method |
| US6948282 | 17 Abr 2003 | 27 Sep 2005 | Allan Block Corporation | Interlocking building block |
| US7032357 | 9 Oct 2002 | 25 Abr 2006 | ARXX Building Products, Inc. | Bridging member for concrete form walls |
| US7712281 | 6 Abr 2005 | 11 May 2010 | Allan Block Corporation | Interlocking building block |
| USD342553 | 24 Nov 1992 | 21 Dic 1993 | Interlego A.G. | Element for a toy building set |
| USD387431 | 22 Feb 1996 | 9 Dic 1997 | | Hollow construction block |
| USRE41994 | 13 Ago 1999 | 14 Dic 2010 | ARXX Building Products, Inc. | Web member for concrete form walls |