Issued Patents All Time
Showing 51–60 of 60 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5316567 | Hydrometallurgical copper extraction process | — | 1994-05-31 |
| 5223024 | Hydrometallurgical copper extraction process | — | 1993-06-29 |
| 5002748 | Method for the preparation of copper arsenate | Edward F. G. Milner | 1991-03-26 |
| 4984691 | Container | — | 1991-01-15 |
| 4913403 | Runner system and article for the casting of metals | Andrew M. Plowman | 1990-04-03 |
| 4901859 | Container | — | 1990-02-20 |
| 4830189 | Container | — | 1989-05-16 |
| 4756355 | Refractory hollowware and method of casting using hollowware to remove non-metallic inclusions from molten metal | Andrew M. Plowman | 1988-07-12 |
| 4384940 | Chlorine leaching of nickel-cobalt-iron sulphides | Kohur N. Subramanian | 1983-05-24 |
| 4377410 | Chromium recovery from superalloy scrap by selective chlorine leaching | John A. Thomas, Victor A. Ettel | 1983-03-22 |