Marcia Cristina Khalil de Oliveira

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Rio de Janeiro, BR

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Patents Grantslast 30 patents

Information Patent Grant
Process for the enhanced recovery of petroleum oil
- Patent number 6,164,379
- Issue date Dec 26, 2000
- Petroleo Brasileiro S.A.-Petrobras
- Marcia Cristina Khalil de Oliveira
- E21 - EARTH DRILLING MINING