Issued Patents All Time
Showing 1–25 of 44 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10779452 | Rotary slurry injector | — | 2020-09-22 |
| 10182521 | Field cultivation combined with fertilizer placement | — | 2019-01-22 |
| 9226437 | Fertilizer applicator with coulter for minimum soil displacement | — | 2016-01-05 |
| 8544395 | Slurry fertilizer applicator | — | 2013-10-01 |
| 7143837 | Soil conditioning rotary reel for secondary tillage operations | — | 2006-12-05 |
| 7143836 | Soil conditioning rotary reel for primary tillage operations | — | 2006-12-05 |
| 6973884 | Slurry fertilizer applicator | — | 2005-12-13 |
| 6896068 | Tillage implement with indexed harrow | Dean A. Knobloch | 2005-05-24 |
| 6626246 | Tillage implement with one point pin angle adjustment | Rickey Gerber, Dean A. Knobloch, Paul Hurtis | 2003-09-30 |
| 6454019 | Agricultural implement down pressure system | Douglas Samuel Prairie, David Keats, Einar M. Skolseg | 2002-09-24 |
| 6422323 | Tillage tooth for use in an implement providing a smooth finish | — | 2002-07-23 |
| 6397767 | Knife applicator for applying liquid fertilizer in the ground | — | 2002-06-04 |
| 6276462 | Combination tillage equipment for providing a smooth finish | — | 2001-08-21 |
| 6178900 | Combination chisel plow and fertilizer placement apparatus | — | 2001-01-30 |
| 6095065 | Apparatus for high speed application of liquid or dry fertilizer | — | 2000-08-01 |
| 6012534 | Minimum soil displacement chisel plow and soil firming wheel arrangement | Michael G. Kovach | 2000-01-11 |
| 5865131 | Slurry fertilizer applicator | Aaron Beyer | 1999-02-02 |
| 5862763 | Apparatus for high speed application of liquid or dry fertilizer | — | 1999-01-26 |
| 5540288 | Primary tillage unit with reduced disturbance of surface soil and residue | — | 1996-07-30 |
| 5437337 | Tillage unit with reduced disturbance of surface residue and soil | — | 1995-08-01 |
| 5413182 | Improvements in frame of winged agricultural implement | Gaylen James Kromminga, Dean A. Knobloch | 1995-05-09 |
| 5343958 | Agricultural fertilizer applicator including self-leveling wagon hitch | Gaylen James Kromminga, Dean A. Knobloch | 1994-09-06 |
| 5080178 | Agricultural tillage implement with improved soil leveler using staggered discs | — | 1992-01-14 |
| 4924946 | Apparatus for deep plowing highly compacted soil | — | 1990-05-15 |
| 4723495 | Single blade sealer for fertilizer applicator | Dean A. Knoblock, Cary L. Sizelove | 1988-02-09 |