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| US4274240 | 3 May 1979 | 23 Jun 1981 | | Concrete floor slab constructed from basic prefabricated slabs |
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| US4964757 | 7 Aug 1989 | 23 Oct 1990 | | Ecological panel for obtaining in particular bank defences by hinging it to identical panels |
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| US5015122 | 10 Jul 1989 | 14 May 1991 | | System permitting channeling of drainage fluid |
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| US6739797 | 12 Oct 2000 | 25 May 2004 | | Interlocking erosion control block with integral mold |
| USD302313 | 28 Nov 1986 | 18 Jul 1989 | | Erosion control device |
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| USD580561 | 5 Oct 2007 | 11 Nov 2008 | Armortec, LLC | Pad for a seabed mat |
