Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE47673 | Process for recovering zinc and/or zinc oxide II | Raymond Walter Shaw | 2019-10-29 |
| 9284624 | Process for recovering zinc and/or zinc oxide II | Raymond Walter Shaw | 2016-03-15 |
| 5595645 | Electrolytic oxidation process | — | 1997-01-21 |
| 5529672 | Mineral recovery apparatus | Robert N. De Denus, Patrick Anthony Treasure | 1996-06-25 |