Issued Patents All Time
Showing 101–120 of 120 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8942894 | Seeding machine for planting multiple seed varieties and prescription for multiple varieties seeding machine | Charles T. Graham | 2015-01-27 |
| 8910582 | Row unit for a seeding machine having active downforce control for the closing wheels | Nathan A. Mariman, Paul R. Riewerts, Lee E. Zumdome | 2014-12-16 |
| 8869719 | Air pressure differential seed meter | Michael E. Friestad, Nathan A. Mariman, Lee E. Zumdome | 2014-10-28 |
| 8863676 | Twin-row multiple variety planter and method of use | Thomas C. Brockmann, James R. Peterson, Donald K. Landphair, David J. Rylander, Michael E. Frasier | 2014-10-21 |
| 8850998 | Planting unit for a seeding machine having a seed meter and seed delivery system | Michael E. Friestad, Nathan A. Mariman, Lee E. Zumdome | 2014-10-07 |
| 8850995 | Seeding machine with seed delivery system | Michael E. Friestad, Nathan A. Mariman, David J. Rylander, Daniel B. Thiemke | 2014-10-07 |
| 8813663 | Seeding machine with seed delivery system | Daniel B. Thiemke, David J. Rylander, Nathan A. Mariman, Michael E. Friestad | 2014-08-26 |
| 8800457 | Planting unit for a seeding machine having a seed meter with a downwardly facing metering member and a seed delivery system | Michael E. Friestad, Nathan A. Mariman, Lee E. Zumdome | 2014-08-12 |
| 8789482 | Seeding machine with seed delivery system | Michael E. Friestad, Nathan A. Mariman, David J. Rylander, Daniel B. Thiemke | 2014-07-29 |
| 8746159 | Metering member for a seed meter | Michael E. Friestad, Nathan A. Mariman, Lee E. Zumdome | 2014-06-10 |
| 8671856 | Planting unit for a seeding machine having blocking member to control hand-off of seed from a seed meter to a seed delivery system | Michael E. Friestad, Nathan A. Mariman, Lee E. Zumdome | 2014-03-18 |
| 8522699 | Row unit for a seeding machine | Michael E. Friestad, Nathan A. Mariman | 2013-09-03 |
| 8468960 | Seeding machine with seed delivery system | Michael E. Friestad, Nathan A. Mariman, David J. Rylander, Daniel B. Thiemke | 2013-06-25 |
| 8418636 | In-ground seed spacing monitoring system for use in an agricultural seeder | James Liu, Nikolai R. Tevs | 2013-04-16 |
| 8276529 | Row unit for a seeding machine | Michael E. Friestad, Nathan A. Mariman | 2012-10-02 |
| 8267021 | Quick closing trench opener/closer for an agricultural seeding machine | Nathan A. Mariman, Lee E. Zumdome | 2012-09-18 |
| 8074586 | Seed delivery apparatus with sensor and moving member to capture and move seed to a lower outlet opening | Michael E. Friestad, Nathan A. Mariman, David J. Rylander, Daniel B. Thiemke, James Liu +1 more | 2011-12-13 |
| 7918168 | Differential pressure seed meter with an endless belt seed transport member | Michael E. Friestad, Nathan A. Mariman | 2011-04-05 |
| 7104339 | Automatically engaging coupler with flexible shaft for a seeding machine | — | 2006-09-12 |
| 6454055 | Braking device with shoe-orienting compliant member | Todd Coons, Larry L. Howell | 2002-09-24 |