Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1004901 | Lifting apparatus | Barry Isringhausen, Britt Calloway | 2023-11-14 |
| 11530117 | Tank car lifting apparatus | Barry Isringhausen, Britt Calloway | 2022-12-20 |
| D968745 | Lifting arm | Barry Isringhausen, Britt Calloway, Andrew NITCHIE | 2022-11-01 |
| D967592 | Lifting arm | Barry Isringhausen, Britt Calloway, Andrew NITCHIE | 2022-10-18 |
| 11325814 | Tank car lifting apparatus | Barry Isringhausen, Britt Calloway | 2022-05-10 |
| D931342 | Lifting arm | Barry Isringhausen, Britt Calloway | 2021-09-21 |
| D930052 | Lifting arm | Barry Isringhausen, Britt Calloway | 2021-09-07 |
| 10577226 | Tank car lifting apparatus | Barry Isringhausen, Britt Calloway | 2020-03-03 |
| 10150651 | Tank car lifting apparatus | Barry Isringhausen, Britt Calloway | 2018-12-11 |