Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7431321 | Trailer hitch assembly | Eric Terpsma, Richard T. Polanic, Rudolph A. Bahnsen | 2008-10-07 |
| 7398987 | Industrial E-hitch trailer coupler | John Thomas Buckley | 2008-07-15 |
| 5904472 | Vapor control system | Scott M. Olson, Gregory P. Wood | 1999-05-18 |
| 5575629 | Vapor control system | Scott M. Olson, Gregory P. Wood | 1996-11-19 |