Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5653886 | Coagulant for mineral refuse slurries | E. Michael Kerr, John R. Hurlock | 1997-08-05 |
| 5387405 | Bayer liquor polishing | Robert P. Mahoney, Ralph W. Kaesler, Robert L. Wetegrove | 1995-02-07 |
| 5296006 | 3-acrylamido-3-methylbutanoic acid copolymers as selective coal flocculants | Peter E. Reed, Ram A. Venkatadri | 1994-03-22 |
| 5217620 | Clarification aid for the Bayer process | Robert P. Mahoney, Robert L. Wetegrove | 1993-06-08 |
| 5185135 | Method of dewatering a wet process phosphoric acid slurry | Krishnan J. Pillai, William K. Gustafson | 1993-02-09 |
| 5091159 | Use of dextran as a filtration aid for thickener overflow filtration in Kelly filters in the Bayer process | Steven J. Abbatello, David Davis, David A. Undlin | 1992-02-25 |
| 5009873 | Crystal modification in wet process phosphoric acid production | E. Michael Kerr, William J. Roe, Robert M. Vallowe | 1991-04-23 |
| 4786318 | Thickening of gold process slurries | David O. Owen | 1988-11-22 |
| 4713222 | Iron removal from bayer process liquor | David O. Owen | 1987-12-15 |
| 4704209 | Sulphonate-containing terpolymers as flocculants for suspended solids | Paul Richardson, Dodd W. Fong, Ralph W. Kaesler | 1987-11-03 |
| 4555329 | Selective flocculation of coal | Robert C. Sykes, William J. Roe | 1985-11-26 |
| 4545902 | Flocculants for bauxite (red mud) | Radhakrishnan Selvarajan | 1985-10-08 |
| 4374102 | Polymers for controlling soda ash crystal formation | James Kane, R. James Shields | 1983-02-15 |