Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6661514 | Tube blockage monitor | Nikolai R. Tevs, Edwin M. Bethune | 2003-12-09 |
| 5969340 | Seed counting apparatus for a planter monitor | James F. White, Nikolai R. Tevs | 1999-10-19 |
| 5883383 | Seed counting apparatus for a planter monitor | — | 1999-03-16 |