Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12295279 | System for moving distribution lines of a product distribution system | Matthew J. Stefaniuk, Gregory Johnson, Darwin L. Zacharias | 2025-05-13 |
| 10390480 | Secondary seed tank for air cart system | Dennis George Thompson, Martin J. Roberge, Graham Douglas Stuart, Robin B. Schilling, Darwin L. Zacharias | 2019-08-27 |
| 9872427 | Secondary seed tank for air cart system | Dennis George Thompson, Martin J. Roberge, Graham Douglas Stuart, Robin B. Schilling, Darwin L. Zacharias | 2018-01-23 |
| 9521797 | System and method for determining ground engaging tool position based on fluid pressure | Nicholas George Alfred Ryder, Anthony Charles Rapley, Michael J. Bloom | 2016-12-20 |
| 8688333 | System and method for determining ground engaging tool position based on fluid pressure | Nicholas George Alfred Ryder, Anthony Charles Rapley, Michael J. Bloom | 2014-04-01 |
| 8646543 | Lockout system for hydraulic valves of an agricultural implement | — | 2014-02-11 |
| 8636078 | Mechanically controlled hydraulic system for an agricultural implement | — | 2014-01-28 |
| 8567517 | Agricultural implement tool frame actuating system | Terrance A. Friggstad, Nicholas George Alfred Ryder | 2013-10-29 |
| 8408326 | Hydraulic remote control for hydraulic system of an agricultural implement | Nicholas George Alfred Ryder | 2013-04-02 |
| 8346442 | System and method for determining ground engaging tool position based on fluid pressure | Nicholas George Alfred Ryder, Anthony Charles Rapley, Michael J. Bloom | 2013-01-01 |
| 8176992 | Electronically controlled hydraulic system for an agricultural implement | — | 2012-05-15 |