Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11085568 | Center pivot irrigation gooseneck with varying cross-sectional diameters | Craig B. Nelson, Reid A. Nelson, Riley D. Greenwood, Chad D. Leinweber | 2021-08-10 |
| 9403176 | Stream deflector | Craig B. Nelson | 2016-08-02 |
| 9085005 | Automatic nozzle changer | — | 2015-07-21 |
| 8807517 | Rotary pinch valve | — | 2014-08-19 |
| 8567691 | Sprinkler with viscous hesitator and related method | — | 2013-10-29 |
| 7980488 | Sprinkler with geared viscous hesitator and related method | — | 2011-07-19 |
| 7789323 | Dual-mode sprinkler head | Reid A. Nelson, Patrick T. Barry, Craig B. Nelson | 2010-09-07 |
| 7584904 | Sprinkler with viscous hesitator | — | 2009-09-08 |
| 6827291 | Reversible adjustable arc sprinkler | — | 2004-12-07 |
| 6814305 | Reversible adjustable arc sprinkler | — | 2004-11-09 |
| 6488218 | Sprinkler head conversion for pop-up assembly | Robert Rupar, Craig B. Nelson | 2002-12-03 |