Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5511491 | Railway car | Albert A. Beers, Stephen W. Smith | 1996-04-30 |
| 5407309 | All purpose railway spine car | Albert A. Beers | 1995-04-18 |
| 5392717 | Railway car | Albert A. Beers, Stephen W. Smith | 1995-02-28 |
| 5320046 | Low profile railway car | — | 1994-06-14 |
| 5246321 | Railway spine car | — | 1993-09-21 |
| 5161469 | All purpose spine car container floor restraint | — | 1992-11-10 |
| 5140912 | Rail car end assembly | — | 1992-08-25 |
| 5090331 | All purpose car | Phillip G. Przybylinski | 1992-02-25 |
| 5052868 | All purpose car | Phillip G. Przybylinski | 1991-10-01 |
| 5010825 | Rail car end assembly | — | 1991-04-30 |
| 4944234 | Rail car end assembly | — | 1990-07-31 |
| 4917019 | Railway freight car | Phillip G. Przybylinski, Robert P. Sellberg | 1990-04-17 |
| 4864938 | Railway freight car | Phillip G. Przybylinski, Robert P. Sellberg | 1989-09-12 |
| 4626154 | Trailer hitch with elastomer in shear cushioning | Michael W. DiLuigi | 1986-12-02 |
| 4573843 | Hitch mounting means | George S. McNally | 1986-03-04 |
| 4557647 | Multiplanar support beam for hitch pivot mount | Phillip G. Przybylinski | 1985-12-10 |
| 4363578 | Cushioned low profile trailer | Michael W. DiLuigi, Thomas W. Lindauer | 1982-12-14 |
| 4215515 | Plug door actuating mechanism | Harold A. Wold, Leonard F. LeMaire | 1980-08-05 |