|
| US4239122 | 2 Mar 1978 | 16 Dic 1980 | Unarco Industries, Inc. | Reinforced storage rack |
| US5168827 | 31 Oct 1990 | 8 Dic 1992 | | Signaling device |
| US5377949 | 25 Feb 1993 | 3 Ene 1995 | Donnelly Corporation | Breakaway accessory mounting for vehicles |
| US5568909 | 10 Mar 1995 | 29 Oct 1996 | | Mounting bracket |
| US5775675 | 2 Abr 1997 | 7 Jul 1998 | Safety By Design, Inc. | Sequential kinking guardrail terminal system |
| US6224290 | 24 Jul 1997 | 1 May 2001 | | Reflective highway divider |
| US6470634 | 9 May 2000 | 29 Oct 2002 | | Freezer door bumper guard |
| US6868641 | 1 May 2002 | 22 Mar 2005 | | Breakaway post base |
| US7014389 | 30 Ene 2004 | 21 Mar 2006 | Hallan Products, Ltd. | Articulated guardrail reflector assembly |
| US7325999 | 2 Mar 2005 | 5 Feb 2008 | Qwick Kurb, Inc. | Locking device for traffic beacon |
| US7938594 | 25 Jun 2007 | 10 May 2011 | Qwick Kurb, Inc. | Holding device for traffic beacon |
| US7950870 | 19 Mar 2009 | 31 May 2011 | Energy Absorption Systems, Inc. | Energy absorbing vehicle barrier |
| US8074761 | 6 Ene 2009 | 13 Dic 2011 | Energy Absorption Systems, Inc. | Crash attenuator |
| US8182169 | 27 Abr 2011 | 22 May 2012 | Energy Absorption Systems, Inc. | Energy absorbing vehicle barrier |
| US8215619 | 2 Dic 2009 | 10 Jul 2012 | Energy Absorption Systems, Inc. | Guardrail assembly, breakaway support post for a guardrail and methods for the assembly and use thereof |