Visualization of worldwide patenting activity from 1980 to today. The data are available in open access at Technical details: Bivariate kernel density estimation (Gaussian kernel) from the longitude and latitude coordinates and some weight values. One frame in the video represents one week. For smoothing purposes, the weights from the previous weeks are reduced by 10% from the initial value, meaning that one observation is considered for 10 frames. Credits: Hannes Marks
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