|
| US4041623 | 22 Sep 1975 | 16 Aug 1977 | Miller Formless Co., Inc. | Grade cutting machine |
| US4260281 | 8 Nov 1976 | 7 Apr 1981 | Michael P. Breston | Method and apparatus for stabilizing a fill slope |
| US4808026 | 19 Jan 1988 | 28 Feb 1989 | Power Curbers, Inc. | Construction apparatus with earth trimmer |
| US4820041 | 12 Nov 1986 | 11 Apr 1989 | Agtek Development Co., Inc. | Position sensing system for surveying and grading |
| US4823366 | 17 Feb 1987 | 18 Apr 1989 | White Consolidated Industries, Inc. | Material conveying equipment with control for paving materials using ultrasonic waves |
| US4924374 | 9 Jun 1988 | 8 May 1990 | Spectra Physics | Method for automatic position control of a tool |
| US5044820 | 13 Mar 1990 | 3 Sep 1991 | ABG-Werke GmbH | Road-finishing apparatus with improved control over laying beam |
| US5108220 | 13 Jul 1990 | 28 Apr 1992 | Allen Engineering Corporation | Light weight, fast steering riding trowel |
| US5184293 | 23 Mar 1990 | 2 Feb 1993 | Spectra Physics | Apparatus for automatic depth control for earth moving and grading |
| US5235511 | 23 Mar 1990 | 10 Aug 1993 | Spectra-Physics, Inc. | Method for automatic depth control for earth moving and grading |
| US5327345 | 15 Feb 1991 | 5 Jul 1994 | Laser Alignment, Inc. | Position control system for a construction implement such as a road grader |
| US5430651 | 1 Jul 1994 | 4 Jul 1995 | Laser Alignment, Inc. | Position control system for a construction implement such as a road grader |
| US6168348 | 16 Jan 1998 | 2 Jan 2001 | Southern Laser, Inc. | Bi-directional surface leveling system |
| US6227761 | 27 Oct 1998 | 8 May 2001 | Delaware Capital Formation, Inc.
Michigan Technological University | Apparatus and method for three-dimensional contouring |
| US6508606 | 15 Sep 2000 | 21 Jan 2003 | Miller Spreader Company | Curb forming apparatus |
| US6612774 | 17 Aug 1999 | 2 Sep 2003 | Rick Dulin | Method and apparatus for compacting road shoulders |
| US7144191 | 21 Jan 2005 | 5 Dec 2006 | Somero Enterprises, Inc. | Apparatus and method for three-dimensional contouring |
| US7399139 | 21 Jul 2005 | 15 Jul 2008 | Somero Enterprises, Inc.
Michigan Technological University | Apparatus and method for three-dimensional contouring |
| US7647983 | 31 Mar 2006 | 19 Jan 2010 | Caterpillar Inc. | Machine with automated linkage positioning system |
| US7690864 | 22 Dec 2008 | 6 Apr 2010 | Allen Engineering Corporation | Hydraulic riding trowel with automatic load sensing system |
| USRE28979 | 19 Mar 1975 | 28 Sep 1976 | Grad-Line, Inc. | Control system for road grader |
| USRE39834 | 6 May 2003 | 11 Sep 2007 | Michigan Technological University
Somero Enterprises, Inc. | Apparatus and method for three-dimensional contouring |
