An infographic offers a global perspective on patent filings per research development expenditure, by country - and yields some potentially surprising results.

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A recent infographic measures innovation by how many patents a country files for each dollar of research budget – and showcases which countries are the most efficient in their innovation. The perhaps surprising result? While Japan leads in terms of total patents granted, followed by the US, it's the Republic of Korea that is the most efficient in its innovation, with a much narrower gap between its research expenditure and patents granted. Or in other words – each dollar spent on research is likelier to result in a patent.

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