Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4252622 | Continuous process for the purification of zinc plants electrolytes using copper arsenates | George M. Freeman | 1981-02-24 |
| 4240826 | Process for the recovery of arsenic as a zinc arsenate and its _utilization in the purification of zinc plant electrolytes | John Mouland, Stan Timler | 1980-12-23 |