Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8454888 | Apparatus for injecting gas into a vessel | Eric Tierney, Todd G. Smith | 2013-06-04 |
| 8388888 | Apparatus for injecting gas into a vessel | Derek S. Dengel, Todd G. Smith | 2013-03-05 |
| 8017068 | Inducing swirl in a gas flow | Derek S. Dengel, Todd G. Smith | 2011-09-13 |
| 8012409 | Apparatus for injecting gas into a vessel | Eric Tierney, Todd G. Smith | 2011-09-06 |
| 7568681 | Apparatus for injecting gas into a vessel | Eric Tierney, Michael Mattich, Todd G. Smith | 2009-08-04 |
| 7402274 | Metal making lance slag detection system | Nicholas M. Rymarchyk, Michael Mattich | 2008-07-22 |
| 4938459 | Mechanically sealed tuyere block | — | 1990-07-03 |