Sergio Luiz Pereira de Freitas Coelho

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Niteroi, BR

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Patents Grantslast 30 patents

Information Patent Grant
Process for the selective controlled reduction of the relative wate...
- Patent number 7,395,858
- Issue date Jul 8, 2008
- Petroleo Brasiliero S.A. — Petrobras
- Luis Cesar Ferreira Barbosa
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

Patents Applicationslast 30 patents

Information Patent Application
Process for the selective controlled reduction of the relative wate...
- Publication number 20070062697
- Publication date Mar 22, 2007
- Petroleo Brasileiro S.A. - PETROBRAS
- Luis Cesar Ferreira Barbosa
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...