Issued Patents All Time
Showing 51–55 of 55 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5431713 | Method for the reclamation of metallic compounds from zinc and lead containing dust | Michael W. Cudahy | 1995-07-11 |
| 5208004 | Method for the recovery of zinc oxide | — | 1993-05-04 |
| 4698321 | Regeneration of HDS catalysts | William R. Ernst | 1987-10-06 |
| 4559313 | Removal of inorganic contaminants from catalysts | William R. Ernst | 1985-12-17 |
| 4550198 | Purification of terephthalic acid by supercritical fluid extraction | — | 1985-10-29 |