Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12376520 | Land roller with replaceable chopping blades | Martin Grass, Waldemar Berg | 2025-08-05 |
| 12114592 | Ground working apparatus including coulter and shovel for use with liquid fertilizer injector | Waldemar Berg | 2024-10-15 |
| 11997938 | Articulated apparatus for towing a rotary driven implement from a towing vehicle | Martin Grass, Waldemar Berg | 2024-06-04 |
| 10893643 | Tillage implement | — | 2021-01-19 |
| 10588253 | Tillage implement | — | 2020-03-17 |
| 10080322 | Flexible cultivator implement | Terrance A. Friggstad | 2018-09-25 |
| 9949432 | Land roller with chopping blades | — | 2018-04-24 |
| 9839171 | Agricultural land roller implement | — | 2017-12-12 |
| 9826671 | Tillage implement | — | 2017-11-28 |
| 9763378 | Winged agricultural implement | — | 2017-09-19 |
| 9408338 | Disc mounting assembly for a vertical tillage implement | — | 2016-08-09 |
| 9155240 | Tillage implement | — | 2015-10-13 |
| 8684649 | Grain cart | — | 2014-04-01 |