Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8160785 | Vehicle and vehicle attachment | Kent Kahle, Vincent Lansing Lasher | 2012-04-17 |
| 5107932 | Method and apparatus for controlling the blade of a motorgrader | Mark Zachman | 1992-04-28 |
| 4926948 | Method and apparatus for controlling motorgrader cross slope cut | James B. Davidson, Peter N. Kaz, Mark Zachman | 1990-05-22 |
| 4888890 | Laser control of excavating machine digging depth | Robert H. Studebaker, Ted L. Teach | 1989-12-26 |