Who sued anyone in the mobile business

Wandering through the Internet, I came across an interesting scheme that reflects the judicial relationship between the largest players in the mobile device and application market. The scheme is perfectly readable and very intuitive.



As can be seen from the figure, the most complaints came from Nokia (8 lawsuits) and Kodak (5 lawsuits).
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This is a redesign of the Guardian scheme made by Nicholas Felton.