WC

Wagner C. Coelho

PS Petróleo Brasileiro S.A.—Petrobras: 2 patents #73 of 1,087Top 7%
Overall (All Time): #2,353,737 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4523941 Process for the partial solubilization of phosphate rock and obtaining phosphate fertilizers therefrom Hossam A. A. Abdel-Hehim, Gloria M. G. Soares 1985-06-18
4469504 Process for the partial solubilization of phosphate rock and obtaining acid and phosphate fertilizers therefrom Hossam A. A. Abdel-Hehim, Gloria M. G. Soares 1984-09-04