Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6672673 | Ore pass inspection system | Christopher Dorrington, Paula Schmitz, Travis Garvey, Peter Maricich | 2004-01-06 |
| 5667365 | Expandable mixing section gravel and cobble eductor | Kenneth I. Krawza | 1997-09-16 |
| 4806288 | Packing elements | George B. Nowosinski, Lech E. Czerniachowski | 1989-02-21 |