Figure 7

The probability of a ‘hit’ patent (top 5th percentile), conditional on four categories. The red bar is for low \(z_{\mathrm{med}}\) and low \(z_{\mathrm{min}}\); the green is for high \(z_{\mathrm{med}}\) and low \(z_{\mathrm{min}}\); the gold for low \(z_{\mathrm{med}}\) and high \(z_{\mathrm{min}}\); and the purple for high \(z_{\mathrm{med}}\) and low \(z_{\mathrm{min}}\). The thresholds of high and low are the quartile for (a) and (b); the 95th percentile of \(z_{\mathrm{med}}\) and the 15th percentile of \(z_{\mathrm{min}}\) for (c); and the 50th percentile of \(z_{\mathrm{med}}\) and the quartile of \(z_{\mathrm{min}}\) for (d). The fraction of patents in each resulted category are: (a) 17.66% (red), 7.33% (green), 7.33% (gold), and 67.66% (purple); (b) 16.77% (red), 8.22% (green), 8.22% (gold), and 66.77% (purple); (c) 14.9% (red), 0.1% (green), 80.1% (gold), and 4.9% (purple); and (d) 22.47% (red), 2.5% (green), 27.53% (gold), and 47.47% (purple). The left (right) column are for class (subclass) pairs.