Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4619814 | Process for the recovery of non-ferrous metals from sulphide ores and concentrates | Robert S. Salter, Igor Wilkomirsky | 1986-10-28 |
| 4415540 | Recovery of non-ferrous metals by thermal treatment of solutions containing non-ferrous and iron sulphates | Igor Wilkomirsky, Robert S. Salter | 1983-11-15 |
| 4372782 | Recovery of lead and silver from minerals and process residues | Robert S. Salter, Ross Gilders | 1983-02-08 |
| 4317803 | Recovery of non-ferrous metals by thermal treatments of solutions containing non-ferrous and iron sulphates | Igor Wilkomirsky, Robert S. Salter | 1982-03-02 |
| 4224122 | Recovery of non-ferrous metals by thermal treatment of solutions containing non-ferrous and iron sulphates | Igor Wilkomirsky, Robert S. Salter | 1980-09-23 |