Figure 2
From: Technological novelty profile and invention’s future impact
Basic statistics. (a)-(c) each x-axis indicates year when (a) a class, (b) a subclass, or (c) a code combination was introduced. (a)-(b) each y-axis represents the average number of (a) classes and (b) subclasses combined in those patents containing a new code. (c) y-axis displays the number of codes in a new combination. Shaded area denote standard deviation.