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| US4185939 | 11 Jul 1978 | 29 Jan 1980 | | Ground covering slab |
| US4945858 | 25 Aug 1988 | 7 Aug 1990 | | Sanitary animal stall |
| US5224792 | 22 Dec 1989 | 6 Jul 1993 | SF-Vollverbundstein Kooperation GmbH | Shaped (concrete) slab kit |
| US6547487 | 29 Aug 2001 | 15 Apr 2003 | | Wave dissipating blocks for constructing a seawall |
| US6579038 | 10 Jan 2002 | 17 Jun 2003 | | Revetment block |
| US6942421 | 14 Jul 2003 | 13 Sep 2005 | | Manufacture of articulated, predominantly concrete mat |
| USD254034 | 11 Oct 1977 | 22 Jan 1980 | Revetment Products, Ltd. | Revetment grid |
| USD404836 | 20 Mar 1995 | 26 Jan 1999 | F. Von Langsdorff Licensing Ltd. | Paving element |
| USD425628 | 14 Nov 1997 | 23 May 2000 | | Paving stone |
| USD431305 | 21 Oct 1997 | 26 Sep 2000 | F. Von Langsdorff Licensing Ltd. | Paving stone |
| USD581549 | 19 Jun 2007 | 25 Nov 2008 | Vast Enterprises LLC | Paver system |
