Inventor · disambiguated record
Helvio Ferreira Da Silva
Also filed as: FERREIRA DA SILVA HELVIO
2 granted patents·0 citations·filing 2017–2021
23Inventor score
Files withPETROLEO BRASILEIRO S A – PETROBRAS2
Top patents by PatentIndex Score
2 records- 0144US12215552B2Polyvalent riser balconyPETROLEO BRASILEIRO S A —PETROBRAS·Filed 2021·Granted Feb 4, 2025·0 cites·11 claims
- 0235US11149530B2Subsea system and method for pressurization of a subsea oil reserve by injecting at least one of water and gasPETROLEO BRASILEIRO S A —PETROBRAS·Filed 2017·Granted Oct 19, 2021·0 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →