Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11519452 | Advanced nut and bolt | Donald C. Busby, James L. Wollard | 2022-12-06 |
| 10655669 | Advanced nut and bolt | Donald C. Busby, James L. Wollard | 2020-05-19 |
| 5169190 | Boxcar bulkhead drawbar and method | — | 1992-12-08 |