Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4747941 | Increased reduction of magnesium content by use of inorganic promoters during beneficiation of phosphate ores by flotation | Samuel M. Polinsky, Laurence W. Bierman | 1988-05-31 |
| 4642181 | Increased reduction of magnesium content by use of inorganic promoters during beneficiation of phosphate ores by flotation | Samuel M. Polinsky, Larry W. Bierman | 1987-02-10 |
| 4511541 | Process for the recovery of cadmium and other metals from solution | Laurence W. Bierman, Samuel M. Polinsky, Roger B. Humberger | 1985-04-16 |