Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9168586 | Stopper rod | Gerald Nitzl | 2015-10-27 |
| 8809214 | Refractory slag band | David Kennedy, David Millar, Shibiao Yang | 2014-08-19 |
| 7935420 | Seal with expandable graphite | — | 2011-05-03 |
| 5374036 | Metallurgical pouring vessels | Liam Cullen | 1994-12-20 |