Issued Patents All Time
Showing 51–58 of 58 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6092666 | Reduction of pH modifying agent in the flotation of copper minerals | Andrew Newell | 2000-07-25 |
| 6044978 | Process for recovery of copper, nickel and platinum group metal bearing minerals | Andrew Newell, Henry Nhlanhla Gumede | 2000-04-04 |
| 6036025 | Mineral flotation separation by deoxygenating slurries and mineral surfaces | Andrew Newell | 2000-03-14 |
| 6032805 | Enhanced effectiveness of sulfoxy compounds in flotation circuits | Andrew Newell | 2000-03-07 |
| 5992640 | Precious metals recovery from ores | Andrew Newell | 1999-11-30 |
| 5855770 | Base metal mineral flotation processes | Andrew Newell | 1999-01-05 |
| 4708429 | Optical fiber assembly and optically coupled device package including same | Morton Freedman | 1987-11-24 |
| 4204573 | Heat exchanger with concentric flow tubes | — | 1980-05-27 |