Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D987693 | Crop debris clearing disc | Derek W. Allensworth | 2023-05-30 |
| 10462959 | Seed furrow closing wheel | Patrick Whalen, Derek W. Allensworth | 2019-11-05 |
| D801396 | Seed furrow closing wheel | Patrick Whalen, Derek W. Allensworth | 2017-10-31 |
| 8752642 | Implement height adjuster | Patrick Whalen, Derek W. Allensworth | 2014-06-17 |
| D663326 | Cast closing wheel | Derek W. Allensworth, Jim Lascelles | 2012-07-10 |
| 7832345 | Crop debris clearing device | Patrick Whalen, Stephen E. Cerven | 2010-11-16 |
| 7240627 | Crop debris clearing device | Patrick Whalen, Stephen E. Cerven | 2007-07-10 |