Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4313822 | Method for recovering the lead and zinc values in secondary scrubber muds from blast furnace gases | Jean M. Cases, Olivier Lietard | 1982-02-02 |
| 4250027 | Method for recovering the lead and zinc values in secondary scrubber muds from blast furnace gases | Jean M. Cases, Olivier Lietard | 1981-02-10 |