Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9637317 | Conveyor belt idler systems | Anthony Van Zee | 2017-05-02 |
| 9517891 | Conveyor belt idler systems | Anthony Van Zee | 2016-12-13 |
| 6354345 | Pumping system | Frederick A. Nabity, Robert R. Fiedler, Brian D. Dawson, Russell Todd Barker, Frederick Detlef Sueverkruepp, III +3 more | 2002-03-12 |
| 5996427 | Liquid sample storage device | John D. Hull, Robert L. Haahr | 1999-12-07 |
| 5915932 | Peristaltic pump having a roller support | Frederick A. Nabity, Robert R. Fiedler, Brian D. Dawson, Russell Todd Barker, Frederick Detlef Sueverkruepp, III +3 more | 1999-06-29 |
| 5789684 | Liquid sample storage device | John D. Hull, Robert L. Haahr | 1998-08-04 |
| 5576503 | Pumping system | Frederick A. Nabity, Robert R. Fiedler, Brian D. Dawson, Russell Todd Barker, Frederick Detlef Sueverkruepp, III +3 more | 1996-11-19 |