Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6270554 | Continuous nickel matte converter for production of low iron containing nickel-rich matte with improved cobalt recovery | Carlos M. Diaz | 2001-08-07 |
| 5746805 | Process for the continuous manufacture of steel | Martin Hirsch | 1998-05-05 |
| 5466278 | Process for the manufacture of steel | Martin Hirsch | 1995-11-14 |
| 4372540 | Apparatus for oxygen sprinkle smelting of sulfide concentrates | Reinhardt Schuhmann, Jr. | 1983-02-08 |
| 4337086 | Method for decreasing metal losses in nonferrous smelting operations | Reinhardt Schuhmann, Jr. | 1982-06-29 |
| 4334919 | Method of introducing particulate material and a gas into a reactor | Horst Richter, Reinhardt Schuhmann, Jr. | 1982-06-15 |
| 4236915 | Process for oxygen sprinkle smelting of sulfide concentrates | Reinhardt Schuhmann, Jr. | 1980-12-02 |