Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5437336 | Method and apparatus for creating an advantageous growing zone in a soilbed having a topsoil stratum and a hardpan stratum | — | 1995-08-01 |
| 4974681 | Method for fracturing sub-surface hardpan by drawing a particularly-angled tine therethrough | — | 1990-12-04 |
| 4821499 | Rotary rakes | — | 1989-04-18 |
| 4815545 | Subsoil blade ploughs | — | 1989-03-28 |
| 4800713 | Rotary rakes | — | 1989-01-31 |
| 4796939 | Lifting means | Kenneth R. King, William N. Smith | 1989-01-10 |
| D267320 | Blade plough | — | 1982-12-21 |