 Total Patents | | 1 569.7 | 1 754.7 | 1 755.1 | 1 771.4 | 1 899.4 | 2 043.4 | 2 089.7 | 2 059.4 | 2 018.1 | 1 840.4 | 1 853.6 | 1 744.3 | 1 788.9 | 1 737.8 | 1 798.8 | 1 837.8 | 1 896.5 | 1 935.1 | 1 864.7 | 1 869.2 | .. | .. |
| Total Patents | Environment | | 156.9 | 159.4 | 176.6 | 190.8 | 211.8 | 247.2 | 226.9 | 230.1 | 256.6 | 243.2 | 256.9 | 265.8 | 244.7 | 226.0 | 226.4 | 217.0 | 217.0 | 237.0 | 235.3 | 221.3 | .. | .. |
| Environment | Climate change mitigation technologies related to buildings | | 8.0 | 10.0 | 9.7 | 12.5 | 18.0 | 16.8 | 20.2 | 16.0 | 23.3 | 17.8 | 12.6 | 17.5 | 18.3 | 32.9 | 21.3 | 36.5 | 23.0 | 22.5 | 24.1 | 12.9 | .. | .. |
| Climate change mitigation technologies related to energy generation, transmission or distribution | | 24.5 | 22.4 | 36.9 | 36.2 | 49.2 | 46.3 | 49.8 | 46.2 | 77.2 | 85.2 | 83.7 | 93.1 | 82.7 | 66.2 | 73.2 | 69.2 | 69.4 | 68.1 | 67.3 | 68.8 | .. | .. |
| 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 | 7.0 | .. | .. |
| Environmental management | | 54.7 | 80.8 | 68.8 | 76.4 | 71.3 | 107.1 | 97.4 | 95.8 | 85.8 | 79.0 | 114.7 | 102.5 | 95.5 | 74.1 | 75.2 | 67.2 | 64.1 | 88.8 | 88.7 | 83.7 | .. | .. |
| 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 | 22.0 | 18.2 | 21.7 | 14.0 | 15.5 | 17.3 | 15.5 | 16.5 | 7.0 | .. | .. |
| Climate change mitigation technologies in the production or processing of goods | | 21.2 | 30.5 | 29.4 | 41.9 | 39.8 | 40.4 | 38.5 | 56.3 | 47.8 | 57.5 | 45.9 | 48.8 | 64.6 | 33.9 | 50.1 | 35.7 | 50.6 | 46.5 | 47.5 | 48.9 | .. | .. |
| Climate change mitigation technologies related to wastewater treatment or waste management | | 14.5 | 19.9 | 21.3 | 24.6 | 23.6 | 30.2 | 23.3 | 18.2 | 15.0 | 22.0 | 16.5 | 14.8 | 24.6 | 17.3 | 19.2 | 14.3 | 12.8 | 24.9 | 21.4 | 15.0 | .. | .. |