Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9677360 | Extendable pilot for barrel cutter | — | 2017-06-13 |
| 9249631 | Extendable pilot bit for barrel cutter | — | 2016-02-02 |
| 7900724 | Hybrid drive for hydraulic power | Jon Promersberger | 2011-03-08 |
| 6810993 | Articulated aerial device including an upper boom compensation unit | Jon Promersberger, Robert F. Ryan | 2004-11-02 |