Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8534195 | Rail plate inserter | Donald Christopher Noll, Donald M. Treziak, Jr., Mark A. Kappel, Daniel Brook | 2013-09-17 |
| 8171855 | Rail plate inserter | Donald Christopher Noll, Donald M. Treziak, Jr., Mark A. Kappel, Daniel Brook | 2012-05-08 |