Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4642181 | Increased reduction of magnesium content by use of inorganic promoters during beneficiation of phosphate ores by flotation | Samuel M. Polinsky, David A. Hempel | 1987-02-10 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4642181 | Increased reduction of magnesium content by use of inorganic promoters during beneficiation of phosphate ores by flotation | Samuel M. Polinsky, David A. Hempel | 1987-02-10 |