ES

Emilio Cesar Cavalcante Melo Da Silva

PS Petróleo Brasileiro S.A.—Petrobras: 1 patents #19 of 105Top 20%
Overall (2023): #454,607 of 537,848Top 85%
1
Patents 2023

Issued Patents 2023

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11702889 Maritime drilling with fluid reverse circulation without using drilling riser Joseir Gandra Percy, Roni Abensur Gandelman, Guilherme Ribeiro Magalhaes, Guilherme Siqueira Vanni, Augusto Borella Hougaz +2 more 2023-07-18