Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5710361 | In-situ treatment of waste stacks, soils or earth materials to immobilize metals contained therein | Joseph G. Harrington, Michael Orr, Charles H. Schwartz | 1998-01-20 |
| 5632715 | In situ immobilization of metals in waste stacks and waste stack affected zones | Joseph G. Harrington, Michael Orr, Charles H. Schwartz | 1997-05-27 |
| 4883586 | Process for beneficiating ores containing fine particles | Laurence W. Bierman, Samuel M. Polinsky | 1989-11-28 |
| 4511541 | Process for the recovery of cadmium and other metals from solution | Laurence W. Bierman, Samuel M. Polinsky, David A. Hempel | 1985-04-16 |
| 4367197 | Method for the control of excessive corrosion in phosphoric acid circuits | Gary L. Long | 1983-01-04 |
| 4277454 | Methods for the control of excessive corrosion in phosphoric acid circuits | Gary L. Long | 1981-07-07 |