Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8056776 | Refractory pouring tube with porous insert | Stephen Lee, David Bloomfield | 2011-11-15 |
| 6533994 | Alkaline, refractory ceramic hollow item | Steven J. Lee, Dirk Masurat, Jim McIntosh | 2003-03-18 |