Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12186766 | Nozzle and sprinkler for center pivot end | Craig B. Nelson, Loren Vander Griend | 2025-01-07 |
| 10107342 | Viscous rotational speed control device with fluid circuit | — | 2018-10-23 |
| 9995352 | Viscous rotational speed control device | George L. Sesser, Craig B. Nelson, Riley D. Greenwood | 2018-06-12 |
| 9657790 | Viscous rotational speed control device | George L. Sesser, Craig B. Nelson, Riley D. Greenwood | 2017-05-23 |
| 9587687 | Viscous rotational speed control device | George L. Sesser, Craig B. Nelson, Riley D. Greenwood | 2017-03-07 |
| 8678029 | Pressure regulator with remotely controlled shut-off valve | Cliff Ungerecht | 2014-03-25 |
| 8336788 | Dripless rotary sprinkler and related method | Craig B. Nelson, Christina R. Butler | 2012-12-25 |
| 7942345 | Sprinkler with nutating mechanism and optional weight | George L. Sesser, Craig B. Nelson, Reid A. Nelson | 2011-05-17 |
| 7562833 | Sprinkler with magnetic nutating mechanism and related method | Craig B. Nelson | 2009-07-21 |
| 7287710 | Sprinkler with magnetic nutating mechanism and related method | Craig B. Nelson | 2007-10-30 |
| 7159795 | Adjustable arc, adjustable flow rate sprinkler | George L. Sesser, Steven T. McCoon | 2007-01-09 |
| 7086608 | Shaft seal with grease retainer | — | 2006-08-08 |
| 7032836 | Adjustable arc, adjustable flow rate sprinkler | George L. Sesser, Theodore J. Bren | 2006-04-25 |
| 7025287 | Shaft seal with grease retainer | — | 2006-04-11 |
| 6736332 | Adjustable arc, adjustable flow rate sprinkler | George L. Sesser, Steven T. McCoon | 2004-05-18 |
| 6651905 | Adjustable arc, adjustable flow rate sprinkler | George L. Sesser | 2003-11-25 |
| 6382530 | Pressure compensating drip tape | — | 2002-05-07 |
| 6276390 | Combination air release valve | — | 2001-08-21 |
| 6145533 | Air release valve | — | 2000-11-14 |
| 5957150 | Air release valve | — | 1999-09-28 |
| 5794646 | Air release valve | — | 1998-08-18 |