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Year199020002005200620072008200920102011201220132014
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Technology domain
All technologies (total patents)1 205.22 919.533 637.523 566.093 629.073 530.723 199.283 012.193 018.243 024.663 221.683 123.09
Selected environment-related technologies107.42213.42294.83304.78345.43339.22350.31349.96327.68301.47296.82277.07
Hide subtree Environmental management72.92126.67165.5154.75169.2125.03176.83154.17162.75128.67117.8397.67
Environmental managementHide subtree Air pollution abatement1729.554.674743.7827.035243.584437.7532.1724
Air pollution abatementEmissions abatement from stationary sources (e.g. SOx, NOx, PM emissions from combustion plants)11916.8313.171317.831514.8310.2510.52
Emissions abatement from mobile sources (e.g. NOx, CO, HC, PM emissions from motor vehicles)1217.1726.3311.8318.584.3318.7522.4215.67179.1712
Not elsewhere classified411.3319.3318.3312.039.715.426.1713.510.512.510
Hide subtree Water pollution abatement38.3362.1770.176679.6756.584.17756953.0851.1750.17
Water pollution abatementWater and wastewater treatment34.3358.1768.176578.1756.581.6772.56551.5847.6746.83
Fertilizers from wastewater0200100.5021.51.50
Oil spill cleanup42210.5022.52023.33
Hide subtree Waste management16.583437.6735.4238.7538.534.1733.2547.2534.8334.519
Waste managementSolid waste collection3.5796.59911109922
Material recovery, recycling and re-use8.2510.3312.3316.5816.251813.8314.510.9212.8316.57.5
Fertilizers from waste0.3396.53131.511044.54
Incineration and energy recovery22.3311.50.51.525.252.332.54.51.5
Waste management – Not elsewhere classified2.55.338.837.831275.832.5156.574
Soil remediation1125.33425.50.52.5301.5
Environmental monitoring00113111.830003
Hide subtree Water-related adaptation technologies81024.3354.549.834529.9222.52329.528.3324
Water-related adaptation technologiesHide subtree Demand-side technologies (water conservation)71012.3321.519.832713.9214.516.519.52022
Demand-side technologies (water conservation)Indoor water conservation01679.56331434
Irrigation water conservation031.566.83105.753.554.5118
Water conservation in thermoelectric power production0014.52.501.1735.5304
Water distribution763.834111455866
Hide subtree Supply-side technologies (water availability)10123330181686.5108.332
Supply-side technologies (water availability)Water collection (rain, surface and ground-water)10920.52614.51364.575.332
Water storage00312.543.5322330
Hide subtree Climate change mitigation58.42131.08188.17191.62232.32242.35224.56248.46227.59210.13224.98208.23
Climate change mitigationHide subtree Climate change mitigation technologies related to energy generation, transmission or distribution12.8335.0878.7576.92149.67152.65151.33148.53123.92111.15110.95103.7
Climate change mitigation technologies related to energy generation, transmission or distributionHide subtree Renewable energy generation726.5853.2547.92101113.7104.1797.779.6772.7366.9542.7
Renewable energy generationWind energy11.59.510.171317.3310.338151364
Solar thermal energy4111014.3325.1730.8332.8330142315.2515.5
Solar photovoltaic (PV) energy29.5815.2511.0825.8338.0339.0833.0332.522.8328.719.37
Solar thermal-PV hybrids002.51.3334.33200.51.531
Geothermal energy001020114330.33
Marine energy01971513.3311.2513.333.834.461
Hydro energy03.564179.837.6712.339.83551.5
Hide subtree Energy generation from fuels of non-fossil origin4.512.510.516.6712.0813.514.516.927.421018.17
Energy generation from fuels of non-fossil originBiofuels20.52.57118.838.177.1711.583.674.511.83
Fuel from waste2.50.503.55.673.255.337.335.333.755.56.33
Hide subtree Nuclear energy0.3301012001000
Nuclear energyNuclear fusion reactors0.3301012000000
Nuclear fission reactors000000001000
Hide subtree Combustion technologies with mitigation potential (e.g. using fossil fuels, biomass, waste, etc.)0115.582.57.1755752
Combustion technologies with mitigation potential (e.g. using fossil fuels, biomass, waste, etc.)Technologies for improved output efficiency (Combined heat and power, combined cycles, etc.)0012.561.54.17535.532
Technologies for improved input efficiency (Efficient combustion or heat usage)0103213021.520
Hide subtree Technologies for an efficient electrical power generation, transmission or distribution011030.5113.175.17218.5
Technologies for an efficient electrical power generation, transmission or distributionSuperconducting electric elements or equipment010030010.672.17015
Not elsewhere classified001000.5102.5323.5
Hide subtree Enabling technologies in the energy sector15.51612.51821.8723.528.8316.1716.8324.521.33
Enabling technologies in the energy sectorHide subtree Energy storage1410.511.5411.28.514.585.839.3312.33
Energy storageBatteries0000.5113.55.51.51.331.333.5
Capacitors020.53.506.22523.521.83
Thermal storage1196.523342135
Pressurised fluid storage000001000.5000
Mechanical storage000110001012
Pumped storage011000001020
Hydrogen technology00.52.25011.556104.336.677.834
Fuel cells013.2512.54.676.531.331.334.334
Smart grids in the energy sector0000012.51.332.5331
Other energy conversion or management systems reducing greenhouse gas emissions0040.52021.5222.51
Hide subtree Climate change mitigation technologies related to wastewater treatment or waste management 16.8334.8336.672931.6729.1728.8325.422821.2529.3316
Climate change mitigation technologies related to wastewater treatment or waste management Wastewater treatment8.511.523.17912.6712.1713.8313.088.337.254.837
Hide subtree Solid waste management8.3322.3311.519.517.5171312.3318.1712.3323.56.5
Solid waste managementWaste collection, transportation, transfer or storage000110100000
Waste processing or separation000010000000
Landfill technologies aiming to mitigate methane emissions000100010110
Bio-organic fraction processing; production of fertilisers from the organic fraction of waste or refuse0.338.55.53021.519233
Hide subtree Reuse, recycling or recovery technologies813.83614.515.51510.510.339.179.3319.53.5
Reuse, recycling or recovery technologiesDismantling or mechanical processing of waste for the recovery of materials during separation, disassembly, pre-processing or upgrading11.5013.531.50.50.5100
Metal recycling1000000.500000
Disassembly of vehicles for recovery of salvageable parts000000000000
Construction or demolition [C&D] waste000002000000
Glass recycling100010000000
Plastics recycling03.5032.53.52.831.5126.50
Paper recycling200101011000
Disintegrating fibre-containing textile articles to obtain fibres for re-use000000000000
Rubber waste recycling11.50000000000
Recovery of polymers other than plastics or rubbers01010.512.3300.5220
Recovery of luminescent materials0000000000.3300
Recovery of fats, fatty oils, fatty acids or other fatty substances, e.g. lanolin or waxes001000000000
Recovery of tanning agents from leather000000000000
Recycling of wood or furniture waste (production of fertilisers from the organic fraction of waste or refuse)000000000000
Packaging reuse or recycling (bio-packaging)00000.51.51.512.5120
Recycling of waste of electrical or electronic equipment100000000000
Recycling of batteries000000000010
Recycling of fuel cells000000000000
Nuclear fuel reprocessing000000000000
Reuse, recycling or recovery technologies cross-cutting to different types of waste16.3358.57.531.836.333.67383.5
Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas (GHG) emissions mitigation0120.51.50201.51.6712.5
Hide subtree Capture, storage, sequestration or disposal of greenhouse gases116.510.8316.51218.8316.55.58.0512.55
Capture, storage, sequestration or disposal of greenhouse gasesCO2 capture or storage (CCS)116.510.8315.171215.5814.54.56.15114
Capture or disposal of greenhouse gases other than CO200001.3303.25211.91.51
Hide subtree Climate change mitigation technologies related to transportation1631.530.8325.3325.7530.6731.6734.1726.3336.52627.67
Climate change mitigation technologies related to transportationHide subtree Road transport142821.8319.520.0820.6722.1722.1713.83231919.67
Road transportConventional vehicles (based on internal combustion engine)132215.8316.179.4239.515.178.5141214
Hybrid vehicles0220.836.834.832.332120.50
Electric vehicles1332.53.511.338.335376.54.67
Fuel efficiency-improving vehicle design (common to all road vehicles)01100.331.5201.33001
Rail transport000030034100
Maritime or waterways transport11210.332013201.5
Air transport12.554.831.832.54.574.541.54.5
Hide subtree Enabling technologies in transport00200.55.55116.55.52
Enabling technologies in transportElectric vehicle charging00200.54.530054.52
Application of fuel cell and hydrogen technology to transportation0000012111.510
Hide subtree Climate change mitigation technologies related to buildings719.753226.4248.939.0325.6733.5750.9873.3357.5353.2
Climate change mitigation technologies related to buildingsIntegration of renewable energy sources in buildings1697.3322.7511.83312.516.3322.25136.5
Hide subtree Energy efficiency in buildings410.752017.0825.1522.519.1719.2329.6546.5837.5334.2
Energy efficiency in buildingsLighting12.585.52.581.33163.33310.89.254.5
Heating, ventilation or air conditioning [HVAC]25.555117.833.335.5813.578
Home appliances001133020100
Information and communication technologies11.675.57.58.326.674.835.410.1510.2812.7810.7
Elevators, escalators and moving walkways000000000000
End-user side01311.54538.5118.511
Architectural or constructional elements improving the thermal performance of buildings200000.500.50.501.50.5
Enabling technologies in buildings033214.23.51.334.54.55.512
Hide subtree Climate change mitigation technologies in the production or processing of goods19.084965.7584.7875.3383.8373.3973.5687.4451.8376.8351.67
Climate change mitigation technologies in the production or processing of goodsHide subtree Technologies related to metal processing13.751932.5836.5318.3330.513.3330.1714.3319.5818.515
Technologies related to metal processingReduction of greenhouse gas (GHG) emissions155.6752112.52.511.50
Hide subtree Process efficiency12.751426.9231.5316.3329.512.3327.6711.8318.581715
Process efficiencyby recovering materials10.751424.9226.0314.832911.3325.6710.6717.581513
by increasing the energy efficiency of the process20251.50.5121.17122
characterised by the energy source0000.500000000
Hide subtree Technologies relating to chemical industry3.8313.5810.8313.3324.6715.6715.6714.2826.1112.522.1710.83
Technologies relating to chemical industryGeneral improvement of production processes causing greenhouse gases (GHG) emissions1.838.5610.5199.3311.6711.522.831112.56
Improvements relating to chlorine production000000000000
Improvements relating to adipic acid or caprolactam production000000000000
Improvements relating to chlorodifluoromethane (HCFC-22) production000000000000
Improvements relating to the production of products other than chlorine, adipic acid, caprolactam, or chlorodifluoromethane, e.g. bulk or fine chemicals or pharmaceuticals25.084.832.835.676.3342.783.281.59.674.83
Hide subtree Technologies relating to oil refining and petrochemical industry001.56.174.836.54.834.333.0822.331.83
Technologies relating to oil refining and petrochemical industryReduction of greenhouse gas (GHG) emissions during production processes000001.5000010
Bio-feedstock0014.333.833.53.832.333.0810.331.83
Carbon capture or storage (CCS) specific to hydrogen production0000.511.5120110
Ethylene production000.51.3300000000
Hide subtree Technologies relating to the processing of minerals1.51.331.338510.536.331.543.5
Technologies relating to the processing of mineralsProduction of cement0.500.33241034.33142
Cement grinding000000000000
Manufacturing or processing of sand or stone000000000000
Production or processing of lime001610001001.5
Glass production01.330000000000
Production of ceramic materials or ceramic elements1000000.5010.500
Hide subtree Technologies relating to agriculture, livestock or agroalimentary industries02.525.5839.54115.577
Technologies relating to agriculture, livestock or agroalimentary industriesAgricultural machinery or equipment000010302.5030
Reduction of greenhouse gas (GHG) emissions in agriculture0212.541.54.2526.52.524
Land use policy measures000000000000
Afforestation or reforestation000000000000
Livestock or poultry management0000100.2500000
Fishing000100000000
Apiculture000000000000
Food processing00.51221.5222323
Climate change mitigation technologies in the production process for final industrial or consumer products06.5811.53.339.3316.1721.757.214.425.925.75..
Climate change mitigation technologies for sector-wide applications0418.33002022.56.54
Enabling technologies with a potential contribution to greenhouse gas (GHG) emissions mitigation02.55.253.585.17116.8110.3310.52.332.55.83
Data extracted on 17 Dec 2017 14:20 UTC (GMT) from OECD.Stat

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