Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12275284 | Rail gear assembly | Thomas DWYER, Britt Calloway | 2025-04-15 |
| D1004901 | Lifting apparatus | Britt Calloway, Jonathan Dip | 2023-11-14 |
| 11530117 | Tank car lifting apparatus | Britt Calloway, Jonathan Dip | 2022-12-20 |
| D968745 | Lifting arm | Britt Calloway, Jonathan Dip, Andrew NITCHIE | 2022-11-01 |
| D967592 | Lifting arm | Britt Calloway, Jonathan Dip, Andrew NITCHIE | 2022-10-18 |
| 11325814 | Tank car lifting apparatus | Britt Calloway, Jonathan Dip | 2022-05-10 |
| D931342 | Lifting arm | Britt Calloway, Jonathan Dip | 2021-09-21 |
| D930052 | Lifting arm | Britt Calloway, Jonathan Dip | 2021-09-07 |
| 10577226 | Tank car lifting apparatus | Britt Calloway, Jonathan Dip | 2020-03-03 |
| 10150651 | Tank car lifting apparatus | Britt Calloway, Jonathan Dip | 2018-12-11 |