Antonio Augusto M. Velloso

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Salvador, BR

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Patents Grantslast 30 patents

Information Patent Grant
Method for production of hydroxylamine sulfate in the conventional...
- Patent number 6,469,163
- Issue date Oct 22, 2002
- Praxair Technology Inc.
- Diego Fernandez Echegaray
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for production of hydroxylammonium phosphate in the synthesi...
- Patent number 6,333,411
- Issue date Dec 25, 2001
- Praxair Technology, Inc.
- Diego Fernandez Echegaray
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method and production of nitric acid
- Patent number 6,165,435
- Issue date Dec 26, 2000
- Praxair Technology, Inc.
- Diego Fernandez Echegaray
- C01 - INORGANIC CHEMISTRY