Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12365370 | Railway vehicle coupler having robust knuckle | Tom Petrunich, Matthew Todt, Paul A. Sanders, Dale K. Dewald | 2025-07-22 |
| 11987457 | Coordinated braking systems and methods for rail cars | Igor Aleynikov, Tom Petrunich | 2024-05-21 |
| 11541917 | Railway truck assembly having force-detecting load cells | Thomas Petrunich | 2023-01-03 |
| 11499862 | Load sensing system for a railway truck assembly | — | 2022-11-15 |
| 11225273 | Railway truck assembly having coreless I-beam bolster | — | 2022-01-18 |
| 11225271 | Damping system for a railway truck assembly | — | 2022-01-18 |
| 11225272 | Railway truck assembly having I-beam components | Jay P. Monaco, Joshua E. Tonnies | 2022-01-18 |
| 11198457 | Railway truck assembly having friction assist side bearings | Igor Aleynikov, Jared Doerr, Tom Petrunich | 2021-12-14 |
| 10189487 | Railway truck bolster wear liner | Richard Lloyd Warren | 2019-01-29 |
| 10029712 | Stabilized railway freight car truck | — | 2018-07-24 |
| 9555818 | Side bearing for railway car truck | Zachary Bruce Harris | 2017-01-31 |
| 9446774 | Railway car truck with friction damping | — | 2016-09-20 |
| 8991318 | Stabilized railway freight car truck | Aleynikov Igor Arkadyevich | 2015-03-31 |
| 8590460 | Railway freight car truck | — | 2013-11-26 |
| 7527131 | Railway freight car truck | — | 2009-05-05 |
| 7231878 | Linear steering truck | — | 2007-06-19 |
| 7096795 | Linear steering truck | — | 2006-08-29 |
| 5918546 | Linear steering truck | — | 1999-07-06 |
| 5666885 | Linear steering truck | — | 1997-09-16 |
| 5249530 | Forced steering railroad truck system with central transverse pivoted shaft | — | 1993-10-05 |
| 4318348 | Railroad tank car | James D. Parsons | 1982-03-09 |
| 4210254 | Railroad tank car | James D. Parsons | 1980-07-01 |