|
| US4042919 | 10 Nov 1975 | 16 Aug 1977 | | Illuminated sign and high intensity warning device |
| US5440464 | 30 Sep 1994 | 8 Aug 1995 | | Light shroud for highway signs |
| US6253477 | 23 Sep 1998 | 3 Jul 2001 | Hallmark Technologies, Inc. | Retro-reflective sign |
| US6409358 | 7 Jul 2000 | 25 Jun 2002 | | Illuminated stop sign |
| US8091260 | 21 Dec 2006 | 10 Jan 2012 | | Handheld illuminated warning sign |
| USD289146 | 10 Sep 1984 | 7 Apr 1987 | | Translucent hand-held blinking device for signaling transporation, such as bus or taxi |
| USD306706 | 28 Apr 1986 | 20 Mar 1990 | | Lighted cross guard sign |
| USD315695 | 6 May 1988 | 26 Mar 1991 | | Illuminated changeable warning signal |
| USD331718 | 15 Apr 1991 | 15 Dec 1992 | | Combined hand-held warning sign and signalling lights |
| USD351807 | 4 Mar 1993 | 25 Oct 1994 | | Illuminated hand-held stop sign |
| USD396821 | 30 Oct 1997 | 11 Aug 1998 | | Handheld illuminated traffic control sign |
