HS

Helio Mauricio Ribeiro dos Santos

PS Petróleo Brasileiro S.A.—Petrobras: 2 patents #73 of 1,087Top 7%
Overall (All Time): #2,227,651 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6247358 Method for the evaluation of shale reactivity — 2001-06-19
6009747 Method for evaluating drilling fluids — 2000-01-04