Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6364028 | Control and method for positioning a tool of a construction apparatus | Dirrick Ferrell, Timothy E. Steenwyk, Eric J. Walstra | 2002-04-02 |
| 6152238 | Control and method for positioning a tool of a construction apparatus | Dirrick Ferrell, Timothy E. Steenwyk, Eric J. Walstra | 2000-11-28 |
| 5742069 | Digitally filtered laser receiver | Timothy E. Steenwyk | 1998-04-21 |
| 5559725 | Automatic depth control for trencher | Edward G. Nielson, Timothy S. DeBruine, Daniel Modzeleski | 1996-09-24 |
| 5430651 | Position control system for a construction implement such as a road grader | Edward G. Nielsen, Fred D. Litty | 1995-07-04 |
| 5327345 | Position control system for a construction implement such as a road grader | Edward G. Nielsen, Fred D. Litty | 1994-07-05 |