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Mario Germino Ferreira DA SILVA
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Rio de Janeiro, BR
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Patents Grants
last 30 patents
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Patent Grant
Mandril assembly for chemical injection in oil wells
Patent number
11,788,381
Issue date
Oct 17, 2023
PETRÓLEO BRASILEIRO S.A.—PETROBRÁS
Mario Germino Ferreira Da Silva
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
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Patent Application
METHOD FOR APPLYING THE SCALE INHIBITOR TO COMPLETION FLUIDS DURING...
Publication number
20240229605
Publication date
Jul 11, 2024
PETRÓLEO BRASILEIRO S.A. - PETROBRAS
MARIO GERMINO FERREIRA DA SILVA
E21 - EARTH DRILLING MINING
Information
Patent Application
USE OF MICROCAPSULES CONTAINING ACIDS IN ITS INTERIOR AND METHOD OF...
Publication number
20240218235
Publication date
Jul 4, 2024
Petroleo Brasileiro S.A. - PETROBRAS
Mario Germino Ferreira Da Silva
E21 - EARTH DRILLING MINING
Information
Patent Application
METHOD FOR APPLYING THE SCALE INHIBITOR TO COMPLETION FLUIDS DURING...
Publication number
20240133268
Publication date
Apr 25, 2024
PETRÓLEO BRASILEIRO S.A. - PETROBRAS
MARIO GERMINO FERREIRA DA SILVA
E21 - EARTH DRILLING MINING
Information
Patent Application
MANDRIL ASSEMBLY FOR CHEMICAL INJECTION IN OIL WELLS
Publication number
20220025734
Publication date
Jan 27, 2022
Petroleo Brasileiro S.A. - PETROBRAS
Mario Germino Ferreira DA SILVA
E21 - EARTH DRILLING MINING