Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4568374 | Process for the preparation of fertilizers by the partial solubilization of phosphate rocks | Alberto C. Carneiro da Silva, Fabio G. Martins Costa, Hosam A. Abdallah-Rehim, Elisabeth M. Moreira, Jaime da Silva | 1986-02-04 |
| 4523941 | Process for the partial solubilization of phosphate rock and obtaining phosphate fertilizers therefrom | Hossam A. A. Abdel-Hehim, Wagner C. Coelho | 1985-06-18 |
| 4469504 | Process for the partial solubilization of phosphate rock and obtaining acid and phosphate fertilizers therefrom | Hossam A. A. Abdel-Hehim, Wagner C. Coelho | 1984-09-04 |