Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6540436 | Deep root watering unit | — | 2003-04-01 |
| 6158675 | Sprinkler spray head | — | 2000-12-12 |
| 6145758 | Variable arc spray nozzle | Steven Phan, Matthew Payne | 2000-11-14 |
| 5642861 | Plastic spray nozzle with improved distribution | David S. Worcester | 1997-07-01 |