Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4915930 | Process for producing aluminum hydroxide of improved whiteness | Richard H. Goheen, William A. Nigro | 1990-04-10 |
| 4786482 | Bayer process for producing aluminum hydroxide having improved whiteness | Chanakya Misra | 1988-11-22 |
| 4678477 | Process for lowering level of contaminants in Bayer liquor by membrane filtration | Chanakya Misra | 1987-07-07 |
| 4676959 | Bayer process for producing aluminum hydroxide having improved whiteness | Chanakya Misra | 1987-06-30 |
| 4609534 | Lime cleaning process to remove manganese oxide | William V. Felix | 1986-09-02 |
| 4581208 | Lowering organic contaminant content in a sodium aluminate solution by oxidation in a packed bed | Fred S. Williams, Thinnalur J. Sivakumar | 1986-04-08 |
| 4581207 | Recovery of aluminum from spent liquor | J. Finley Bush | 1986-04-08 |
| 4519989 | Removal of organic contaminants from bauxite and other ores | Alan Pearson | 1985-05-28 |
| 4496524 | Process for the removal of sodium oxalate compounds from Bayer spent liquor | J. Finley Bush | 1985-01-29 |
| 4414115 | Removal of copper and zinc species from Bayer process liquor by filtration | — | 1983-11-08 |