S. A. Ravishankar

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Macon, GA, US

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Patents Grantslast 30 patents

Information Patent Grant
Composite pigments comprising in-situ precipitated metal carbonate...
- Patent number 6,440,209
- Issue date Aug 27, 2002
- Engelhard Corpoartion
- S. A. Ravishankar
- C01 - INORGANIC CHEMISTRY