Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6640731 | Dual tungsten carbide boot | Don C. Rowlett, James W. Henry, Dave Wiebe | 2003-11-04 |
| 6405665 | Low disturbance furrowing, seeding, and fertilizing tool | James W. Henry, David Wieb | 2002-06-18 |
| 6357368 | Ground working paired row furrow opener | James W. Henry | 2002-03-19 |
| 6332412 | Paired row furrow opener | James W. Henry | 2001-12-25 |
| 6318279 | Seed boot attachment and wear resistant inset therefor | Don C. Rowlett, James W. Henry | 2001-11-20 |
| 5983813 | Seeding material spreader and optional adjustment means | James W. Henry, Murray H. Wood | 1999-11-16 |