|
| US4666334 | 3 Jun 1985 | 19 May 1987 | | Erosion control system for bluffs located adjacent a body of water |
| US4776725 | 2 Oct 1987 | 11 Oct 1988 | | Erosion control apparatus |
| US4990032 | 30 Ene 1990 | 5 Feb 1991 | Fomico International, Inc. | Retaining wall module with asymmetrical anchor |
| US5704183 | 23 May 1995 | 6 Ene 1998 | Anchor Wall Systems, Inc. | Composite masonry block |
| US5709062 | 15 Jul 1996 | 20 Ene 1998 | Anchor Wall Systems, Inc. | Composite masonry block |
| US5711129 | 4 May 1995 | 27 Ene 1998 | Anchor Wall Systems, Inc. | Masonry block |
| US5795105 | 7 Jun 1995 | 18 Ago 1998 | Anchor Wall Systems, Inc. | Composite masonry block |
| US5827015 | 2 Sep 1997 | 27 Oct 1998 | Anchor Wall Systems, Inc. | Composite masonry block |
| US5879603 | 8 Nov 1996 | 9 Mar 1999 | Anchor Wall Systems, Inc. | Process for producing masonry block with roughened surface |
| US6029943 | 28 Feb 1997 | 29 Feb 2000 | Anchor Wall Systems, Inc. | Splitting technique |
| US6050255 | 30 Ene 1998 | 18 Abr 2000 | Anchor Wall Systems, Inc. | Splitter blade assembly and station |
| US6113318 | 7 Ago 1998 | 5 Sep 2000 | Anchor Wall Systems, Inc. | Composite masonry block |
| US6113379 | 2 Jul 1998 | 5 Sep 2000 | Anchor Wall Systems, Inc. | Process for producing masonry block with roughened surface |
| US6138983 | 23 Nov 1998 | 31 Oct 2000 | Anchor Wall Systems, Inc. | Mold for producing masonry block with roughened surface |
| US6142713 | 25 Sep 1998 | 7 Nov 2000 | Anchor Wall Systems, Inc. | Composite masonry block |
| US6178704 | 1 Jul 1999 | 30 Ene 2001 | Anchor Wall Systems, Inc. | Splitting technique |
| US6183168 | 3 Feb 2000 | 6 Feb 2001 | Anchor Wall Systems, Inc. | Composite masonry block |
| US6224815 | 10 Jul 2000 | 1 May 2001 | Anchor Wall Systems, Inc. | Process for producing masonry block with roughened surface |
| US6312197 | 18 Sep 2000 | 6 Nov 2001 | Anchor Wall Systems, Inc. | Composite masonry block |
| US6609695 | 5 Feb 2001 | 26 Ago 2003 | Anchor Wall Systems, Inc. | Mold for producing masonry block with roughened surface |
| US6616382 | 17 Sep 2001 | 9 Sep 2003 | Anchor Wall Systems, Inc. | Composite masonry block |
| US7048472 | 11 Jun 2003 | 23 May 2006 | Anchor Wall Systems, Inc. | Composite masonry block |
| US7360970 | 8 Dic 2005 | 22 Abr 2008 | Anchor Wall Systems, Inc. | Composite masonry block |
| US7384215 | 5 Ago 2003 | 10 Jun 2008 | Anchor Wall Systems, Inc. | Composite masonry block |
| USD445512 | 27 Oct 1997 | 24 Jul 2001 | Anchor Wall Systems, Inc. | Retaining wall block |
| USD458693 | 8 Nov 1996 | 11 Jun 2002 | Anchor Wall Systems, Inc. | Retaining wall block |