Issued Patents All Time
Showing 26–35 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9804608 | System and method for metering agricultural products | Dennis W. Chahley, Gordon Anthony Engel, Dennis George Thompson, Gregory Jacob Erker, Trevor Lawrence Kowalchuk +1 more | 2017-10-31 |
| 9756777 | Independently controlled meter rollers and air conveyance components system and method | Dennis W. Chahley, Gordon Anthony Engel, Dennis George Thompson, Gregory Jacob Erker, Trevor Lawrence Kowalchuk +1 more | 2017-09-12 |
| 9609804 | Variable geometry meter roller | Trevor Lawrence Kowalchuk | 2017-04-04 |
| 9462743 | Variable geometry meter roller | Trevor Lawrence Kowalchuk, Gordon Anthony Engel | 2016-10-11 |
| 9392741 | Variable geometry meter roller | Trevor Lawrence Kowalchuk, Gordon Anthony Engel | 2016-07-19 |
| 9351441 | Variable geometry meter roller | Trevor Lawrence Kowalchuk, Gordon Anthony Engel | 2016-05-31 |
| 8671857 | Variable geometry meter roller | Trevor Lawrence Kowalchuk | 2014-03-18 |
| 8601962 | Variable geometry meter roller | Trevor Lawrence Kowalchuk, Gordon Anthony Engel | 2013-12-10 |
| 8434416 | Variable geometry meter roller | Trevor Lawrence Kowalchuk, Gordon Anthony Engel | 2013-05-07 |
| 8275525 | Automatic down pressure adjustment system for set of ganged disc openers | Trevor Lawrence Kowalchuk, Robin B. Schilling | 2012-09-25 |