RA

Ruy Coutinho de Assis

PS Petróleo Brasileiro S.A.—Petrobras: 1 patents #235 of 1,087Top 25%
Overall (All Time): #4,123,269 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4232179 Process for preparing ethene Helcio V Valladares Barrocas, Joao B. de Castro M. da Silva 1980-11-04