Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9938680 | Fittings for irrigation systems | Duane K. Smith, Thomas A. King | 2018-04-10 |
| D797904 | Fenestrated tip for a spike tap of an irrigation fitting | Duane K. Smith, Thomas A. King | 2017-09-19 |
| D783132 | Fenestrated tip for a spike tap of an irrigation fitting | Duane K. Smith, Thomas A. King | 2017-04-04 |
| D778410 | Fenestrated tip for a spike tap of an irrigation fitting | Duane K. Smith, Thomas A. King | 2017-02-07 |