Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6352042 | Internal seed knockout assembly | Robert W. Martin, James Irwin Lodico | 2002-03-05 |
| 5533458 | Seed tube for an agricultural seeding machine | Norman Robert Bergland, Donald Raymond Wisor | 1996-07-09 |