Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9834979 | Arcuate drive through bin door assembly | John A. Hanig, Bradley Allan Poppen | 2017-12-05 |
| 9132461 | Support for a grain bin floor and method of making the same | Steven E. Sukup, William C. Shepherd, Charles E. Sukup | 2015-09-15 |
| 8950231 | Support for a grain bin floor and method of making the same | Steven E. Sukup, William C. Shepherd, Charles E. Sukup | 2015-02-10 |
| 8297016 | Support for a grain bin floor and method of making the same | Steven E. Sukup, William C. Shepherd, Charles E. Sukup | 2012-10-30 |