Inventor

PASSOS DE SOUZA VIVIAN

BR3 patents

⚠️ This page may combine multiple inventors who share the name “PASSOS DE SOUZA VIVIAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

PETROLEO BRASILEIRO S A —PETROBRAS

2 patents

US12357982B2Jul 15, 2025

Method for obtaining a support for hydrorefining catalysts, support for hydrorefining catalysts, hydrorefining catalysts, process for obtaining hydrorefining catalysts, and use of support in hydrorefining catalysts

PETROLEO BRASILEIRO S A —PETROBRAS0 citations46

US12591231B2Mar 31, 2026

Method for detecting operational failures

PETROLEO BRASILEIRO S A —PETROBRAS0 citations33

PETROLEO BRASILEIRO S A —PETROBAS

1 patent

US11697107B2Jul 11, 2023

Process for gasification of a carbonaceous raw material of low value as a fuel using a nanocatalyst

PETROLEO BRASILEIRO S A —PETROBAS0 citations40