Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5308043 | Top submergable lance | Kok T. Wong, Ian L. Chard | 1994-05-03 |
| 5282881 | Smelting of metallurgical waste materials containing iron compounds and toxic elements | Brian Ross Baldock, Brian W. Lightfoot, Kenneth R Robilliard | 1994-02-01 |