Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8616566 | Head plate for vehicle axle | John S. Bubulka, Sammy C. Lumetta, Ashley Thomas Dudding, Jerry Michael Lovett | 2013-12-31 |
| 4917019 | Railway freight car | Harold E. Hesch, Phillip G. Przybylinski | 1990-04-17 |
| 4864938 | Railway freight car | Harold E. Hesch, Phillip G. Przybylinski | 1989-09-12 |