Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6350093 | Electrically insulated threaded fastener anchor | Steven R. Mattson | 2002-02-26 |
| 6129288 | Railroad crossing panel filler | Steven R. Mattson | 2000-10-10 |
| 6059199 | Road transportable segmental concrete railroad tie long-line production system | Anders Eriksson, Derek Firth, John G. White | 2000-05-09 |
| 5766648 | Road transportable segmental concrete railroad tie long-line production system | Anders Eriksson, Derek Firth, John G. White | 1998-06-16 |