Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9834947 | Fire escape chamber with outer cage and inner cage | Matthias Lühr, Eric Rojahn | 2017-12-05 |
| 7416712 | Method for obtaining cobalt and nickel from ores and ore concentrates | — | 2008-08-26 |
| 6592644 | Sulfidization of sulfide ores for hydrometallurgical extraction of copper and other metals | — | 2003-07-15 |