Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4849190 | Process for the production of hydrated alumina and process for the treatment of acid wastes | Dante F. F. Filho, Joaquim M. F. Filho, Marcus C. da Fonseca, Ricardo T. de Mello | 1989-07-18 |