Nano & the top 10 big chemical companies : DuPont, BASF and Bayer are the leading trio for patents


NanoTop10BigChemicalEspacenet_nanocolors

Based on an estimation using the Espacenet database, this chart illustrates how the top 10 big chemical companies (according to the 2008 Fortune 500 ranking of chemical industries) rank in terms of number of nano-related patents.

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