 Total Patents | | 1 568.7 | 1 754.4 | 1 755.1 | 1 771.9 | 1 899.4 | 2 042.9 | 2 090.0 | 2 059.4 | 2 018.1 | 1 840.4 | 1 853.6 | 1 744.3 | 1 789.3 | 1 737.8 | 1 798.3 | 1 848.4 | 1 901.9 | 1 947.5 | 1 878.8 | 1 881.4 | 1 851.0 | .. | .. |
| Total Patents | Environment | | 161.4 | 162.4 | 177.8 | 194.3 | 226.9 | 249.7 | 229.5 | 232.3 | 262.5 | 247.2 | 259.0 | 290.7 | 247.5 | 229.2 | 237.9 | 228.0 | 223.4 | 242.7 | 248.2 | 229.5 | 244.2 | .. | .. |
| Environment | Climate change mitigation technologies related to buildings | | 8.0 | 10.0 | 9.7 | 13.5 | 18.0 | 17.8 | 19.2 | 17.0 | 23.3 | 18.8 | 12.6 | 18.5 | 18.3 | 33.9 | 23.6 | 40.0 | 25.0 | 25.5 | 31.1 | 17.4 | 26.2 | .. | .. |
| Climate change mitigation technologies related to energy generation, transmission or distribution | | 26.5 | 22.4 | 37.9 | 36.2 | 49.2 | 46.3 | 50.1 | 46.2 | 78.2 | 87.2 | 85.7 | 94.1 | 83.7 | 68.2 | 75.2 | 69.2 | 69.5 | 70.6 | 72.3 | 70.5 | 92.8 | .. | .. |
| Capture, storage, sequestration or disposal of greenhouse gases | | 0.0 | 0.0 | 1.1 | 2.0 | 1.5 | 0.0 | 7.0 | 5.0 | 10.6 | 10.0 | 14.5 | 11.3 | 4.6 | 7.2 | 10.4 | 2.0 | 7.9 | 7.0 | 7.4 | 8.0 | 5.5 | .. | .. |
| Environmental management | | 54.7 | 80.8 | 68.8 | 76.4 | 71.3 | 108.1 | 97.4 | 95.8 | 85.8 | 79.0 | 114.7 | 102.5 | 95.5 | 74.1 | 75.2 | 68.2 | 66.1 | 91.3 | 90.2 | 85.7 | 82.6 | .. | .. |
| Climate change mitigation technologies related to transportation | | 16.0 | 21.0 | 20.0 | 19.8 | 15.2 | 19.3 | 22.6 | 18.3 | 16.0 | 12.7 | 19.6 | 21.0 | 18.2 | 21.7 | 15.0 | 15.0 | 18.3 | 16.5 | 16.5 | 9.0 | 12.0 | .. | .. |
| Climate change mitigation technologies in the production or processing of goods | | 23.7 | 35.6 | 30.6 | 43.4 | 55.9 | 42.6 | 41.1 | 59.0 | 52.0 | 61.5 | 49.9 | 51.3 | 66.6 | 34.1 | 56.5 | 39.7 | 54.4 | 52.5 | 62.8 | 55.2 | 58.1 | .. | .. |
| Climate change mitigation technologies related to wastewater treatment or waste management | | 15.5 | 19.9 | 21.3 | 24.6 | 24.6 | 31.2 | 23.3 | 18.2 | 15.0 | 22.0 | 17.3 | 14.8 | 24.6 | 17.4 | 19.2 | 14.3 | 14.6 | 23.9 | 21.9 | 17.5 | 25.1 | .. | .. |