Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6627087 | Method of removing lead from water using a high molecular weight cationic dispersion polymer | Ashis K. Samaddar, Manoj K. Bhaduri | 2003-09-30 |
| 4715962 | Ampholytic diallyldimethyl ammonium chloride (DADMAC) copolymers and terpolymers for water clarification | Bhupati R. Bhattacharyya, Michael L. Dwyer | 1987-12-29 |
| 4587023 | Control system for a process | Robert L. Wetegrove, Robert R. Patzelt | 1986-05-06 |
| 4426877 | Method and apparatus for recovering oil from waste oil emulsion | Edwin C. Zuerner | 1984-01-24 |
| 4383927 | Recovery of oil from oily sludges | — | 1983-05-17 |