Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10883244 | Quick hitch | Stephen Ackermann, Christopher Nierenhausen, Doug McIlwain, Ken Walton | 2021-01-05 |
| D839929 | Skid steer loader | David Price, Doug McIlwain, Douglas Davidowski, Stephen Ackermann, Christopher Nierenhausen +1 more | 2019-02-05 |
| 10132054 | Quick hitch | Stephen Ackermann, Christopher Nierenhausen, Doug McIlwain, Ken Walton | 2018-11-20 |
| D832894 | Skid steer loader | David Price, Doug McIlwain, Douglas Davidowski, Stephen Ackermann, Christopher Nierenhausen +1 more | 2018-11-06 |
| 10106384 | Boom assembly with yaw adjustment | Doug McIlwain | 2018-10-23 |
| 8459673 | Track rod | Herrebertus Tempelman, Ihab Ragai | 2013-06-11 |
| 6698529 | Translating turret rock bolter | Perry L. Coombs, Ward D. Morrison | 2004-03-02 |
| 6413019 | Turret rock bolter with stinger/centralizer | Perry L. Coombs, Ward D. Morrison | 2002-07-02 |
| 5937952 | Feed shell positioning mechanism | — | 1999-08-17 |