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| US4597238 | 5 Nov 1984 | 1 Jul 1986 | | Highly insulating brick for masonry |
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| US5087150 | 4 Apr 1990 | 11 Feb 1992 | | Method of constructing a seawall reinforcement or jetty structure |
| US5154224 | 25 Oct 1990 | 13 Oct 1992 | Toshiba Ceramics Co., Ltd. | Refractory brick for a glass fusion furnace |
| US5924477 | 3 Nov 1997 | 20 Jul 1999 | | Brick for heat exchangers |
| US6508042 | 15 Mar 2001 | 21 Jan 2003 | | Middle armor block for a coastal structure and a method for placement of its block |
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| US6811352 | 22 Dec 1998 | 2 Nov 2004 | Den Boer Beton Groot Ammers B.V. | Revetment for a bank |
| US7971407 | 21 May 2008 | 5 Jul 2011 | Keystone Retaining Wall Systems, Inc. | Wall block and wall block system for constructing walls |
| USD498002 | 27 Dec 2002 | 2 Nov 2004 | | Block for a flowerbed |
| USD600541 | 22 Jul 2008 | 22 Sep 2009 | Metzeler Schaum GmbH | Tube |
| USD606794 | 27 Aug 2009 | 29 Dec 2009 | Metzler Schaum GmbH | Mattress |
