Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6865992 | Increased capacity railway car | Stephen W. Smith | 2005-03-15 |
| 6213028 | Increased capacity railway car | Stephen W. Smith | 2001-04-10 |
| D344913 | Railway gondola car | Stephen W. Smith | 1994-03-08 |
| 5178074 | Railway gondola car | Stephen W. Smith | 1993-01-12 |