Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10412880 | Seed sensor with lightpipe photodetect assembly | Ronald W. Steffen, Dahu Qi | 2019-09-17 |
| 9913425 | Seed sensor with lightpipe photodetect assembly | Ronald W. Steffen, Dahu Qi | 2018-03-13 |
| 9854726 | Fault-tolerant sensing and monitoring communications bus system for agricultural applications | David Kuhnel | 2018-01-02 |
| 9307694 | Fault-tolerant sensing and monitoring communications bus system for agricultural applications | David Kuhnel | 2016-04-12 |
| 5635911 | Apparatus and method for monitoring an article dispensing device such as a seed planter and the like | David J. Landers, Kevin P. McEnaney, Scott Holmstrom | 1997-06-03 |