Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6347589 | Railway tank car having a heating system with internal heat transfer panel | — | 2002-02-19 |
| 5058511 | Heated tank car with discharge valve and pressure equalizer | — | 1991-10-22 |
| 5020447 | Tank car discharge valve heating unit | — | 1991-06-04 |
| 4624189 | Heated outlet valve for railway tank car | — | 1986-11-25 |
| 4603733 | Heated railroad tank car | — | 1986-08-05 |
| 4530288 | Heated railway tank car | — | 1985-07-23 |
| 4480370 | Heated railroad tank car | — | 1984-11-06 |
| 4476788 | Heated railroad tank car | — | 1984-10-16 |