A BBC video presents a number of visualization techniques.  https://www.bbc.co.uk/ideas/videos/five-charts-that-changed-the-world/p0fb69c1   Two of which are particularly interesting for displaying complex technical and intellectual property data. Coxcomb Chart Example The first of these is the Coxcomb chart. It’s a stacked form of a pie chart, and visually much easier to understand than stacked bar charts [...]