Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12336460 | Irrigation saddle annular seal face | Roger Duffin | 2025-06-24 |
| 12144294 | Irrigation saddle, adapter, and cap | Roger Duffin | 2024-11-19 |
| 12005464 | Sprinkler with radially limited nutating spool assembly | Roger Duffin, Casey Nutt | 2024-06-11 |
| 11896990 | Nozzle assembly with rotating nozzle insert | Roger Duffin, Casey Nutt | 2024-02-13 |
| 11890634 | Eddy current sprinkler dampener | Casey Nutt | 2024-02-06 |
| 11534776 | Sprinkler head | Roger Duffin | 2022-12-27 |
| 11358162 | Sprinkler head with damper motor | Roger Duffin | 2022-06-14 |
| 11358160 | Sprinkler braking mechanism | Roger Duffin | 2022-06-14 |
| 11261985 | Gas valve | Roger Duffin, Casey Nutt | 2022-03-01 |
| 11213836 | Nutating sprinkler head | Roger Duffin | 2022-01-04 |
| 11154880 | Nutating sprinkler head | Roger Duffin, Casey Nutt | 2021-10-26 |
| 11048280 | Pressure regulator | Roger Duffin | 2021-06-29 |
| 11045822 | Speed controlled nutating sprinkler | Roger Duffin, Casey Nutt | 2021-06-29 |
| 11045824 | Nozzle assembly with rotating nozzle insert | Roger Duffin, Casey Nutt | 2021-06-29 |
| 10857551 | Sprinkler with radially limited nutating spool | Roger Duffin, Casey Nutt | 2020-12-08 |
| 10429859 | Pressure regulator | Roger Duffin | 2019-10-01 |
| 10201818 | Rudder directed tube delivery sprinkler head | Roger Duffin | 2019-02-12 |
| 9457363 | Nutating sprinkler head | Roger Duffin | 2016-10-04 |
| D534401 | Saw blade | Roger S. DUFFIN | 2007-01-02 |