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Year199019952000200520062007200820092010201120122013201420152016
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Technology domain
All technologies (total patents)25 54035 31088 77734 94035 00133 34132 75733 12634 18434 72736 03138 03936 31436 60239 184
Selected environment-related technologies1 8092 7135 4282 6152 7683 1333 3603 7304 3124 0333 9593 7373 2422 9803 038
Hide subtree Environmental management1 0591 5792 8751 4621 5541 5711 6881 8752 1691 9031 7231 7911 6131 2591 319
Environmental managementHide subtree Air pollution abatement3605321 045511620564631734880689659659579385415
Air pollution abatementEmissions abatement from stationary sources (e.g. SOx, NOx, PM emissions from combustion plants)86140223122153171248325352298263270214131137
Emissions abatement from mobile sources (e.g. NOx, CO, HC, PM emissions from motor vehicles)172214443205220188158208275220210199174121125
Air pollution abatament - not elsewhere classified102178379184247205225201253171186190191133153
Hide subtree Water pollution abatement3984931 019552511569596635762683596641601495511
Water pollution abatementWater and wastewater treatment356465979537498558580623739656572622575487498
Fertilizers from wastewater45107114858862714
Oil spill cleanup38233082787151918171979
Hide subtree Waste management279511720380390411422454481489428457380349351
Waste managementSolid waste collection386876724842595954435432445458
Material recovery, recycling and re-use101224322141169164182205189205194198151133161
Fertilizers from waste134568373020272227393020253022
Incineration and energy recovery4169107373865455056603974603728
Waste management – Not elsewhere classified86105147931051201091181551421111331009582
Soil remediation204180102520254526273421221722
Environmental monitoring22119871472015613311320
Hide subtree Water-related adaptation technologies93145246220272297365370371311303258307189216
Water-related adaptation technologiesHide subtree Demand-side technologies (water conservation)78111174124149140207214251193204193233135170
Demand-side technologies (water conservation)Indoor water conservation92216263738283335343524412132
Irrigation water conservation182264485544118108137709074735273
Water conservation in thermoelectric power production91629211623162643423637641416
Water distribution425165294135454736474358554849
Hide subtree Supply-side technologies (water availability)153472961231571581561201189965745446
Supply-side technologies (water availability)Water collection (rain, surface and ground-water)72025416880795356513633182820
Water storage02126281934127877563
Water desalination81246292758459157595625512023
Hide subtree Climate change mitigation1 0901 7473 6041 6421 7842 1612 3242 6923 1583 0363 0172 7902 2932 2122 163
Climate change mitigationHide subtree Climate change mitigation technologies related to energy generation, transmission or distribution2414301 1246767601 2351 3801 7822 0891 8021 7791 5431 3111 2561 102
Climate change mitigation technologies related to energy generation, transmission or distributionHide subtree Renewable energy generation1002054893303776386999231 049866770643495532479
Renewable energy generationWind energy1230130899415718321327718116316113410274
Solar thermal energy326573538513215021826323819113010610888
Solar photovoltaic (PV) energy4561183120129186212307326303232205152213205
Solar thermal-PV hybrids07945871113910117256
Geothermal energy1512421072018171913595
Marine energy31429313276639180609066493955
Hydro energy72353293069776372586557423646
Hide subtree Energy generation from fuels of non-fossil origin265213098167274290371418398329395273229172
Energy generation from fuels of non-fossil originBiofuels12297762120172201253275282239249172154114
Fuel from waste142353364710289118143116901461017558
Hide subtree Nuclear energy262743661033293634475824
Nuclear energyNuclear fusion reactors24171656923242722344721
Nuclear fission reactors2102710110591213113
Hide subtree Combustion technologies with mitigation potential (e.g. using fossil fuels, biomass, waste, etc.)25591074451701091261661491221831176642
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.)18296326215251631016962105844226
Technologies for improved input efficiency (Efficient combustion or heat usage)73044183018586365806078332416
Hide subtree Technologies for an efficient electrical power generation, transmission or distribution1014581516153130482921527654963
Technologies for an efficient electrical power generation, transmission or distributionSuperconducting electric elements or equipment7435476751417932273
Smart grids as climate change mitigation technology in the energy generation sector00305511621798211333
Not elsewhere classified (incl. FACTS, APF, etc.)310201144131926182716222927
Hide subtree Enabling technologies in the energy sector5367283165139210235294323302322258289278267
Enabling technologies in the energy sectorHide subtree Energy storage2230131535477608611392129113937786
Energy storageBatteries751741210122540273526292132
Capacitors4953101519231613153422111616
Thermal storage101438222226142428323127243020
Pressurised fluid storage0012511317184193415
Mechanical storage118533343416146
Pumped storage01371671011109292457
Hydrogen technology1413847046618912811910285798011863
Fuel cells111354353044363445715837805854
Smart grids as enabling technology in the energy sector410135927494644324325332462
High-voltage direct current transmission211201102574312
Other energy conversion or management systems reducing greenhouse gas emissions151418418133450211833254455
Hide subtree Climate change mitigation in information and communication technologies (ICT)317624812685114124116143172161303163146222
Climate change mitigation in information and communication technologies (ICT)Energy efficient computing5193815822181225484086533363
High-level techniques for reducing energy consumption in communication networks001021110410002
Techniques for reducing energy consumption in wire-line communication networks45761081561712209822164
Techniques for reducing energy consumption in wireless communication networks2252133101677699861061001112098897153
Hide subtree Climate change mitigation technologies related to wastewater treatment or waste management 196359526225285267264307367343319351261288266
Climate change mitigation technologies related to wastewater treatment or waste management Wastewater treatment46881509178941101391561351271491058585
Hide subtree Solid waste management145254354126196158139146196179172185142182168
Solid waste managementWaste collection, transportation, transfer or storage122522230120102
Waste processing or separation0020017201151022
Landfill technologies aiming to mitigate methane emissions653021011261101
Bio-organic fraction processing; production of fertilisers from the organic fraction of waste or refuse133358251711202421292114153913
Hide subtree Reuse, recycling or recovery technologies12521428996175127115118173146138169125141150
Reuse, recycling or recovery technologiesDismantling or mechanical processing of waste for the recovery of materials during separation, disassembly, pre-processing or upgrading9162831578515722377
Metal recycling407282209936415
Disassembly of vehicles for recovery of salvageable parts000000000000000
Construction or demolition [C&D] waste104100212000024
Glass recycling132313101201111
Plastics recycling163962193922121119182325101710
Paper recycling1531111505537143168
Fibre-containing textile recycling021000200000000
Rubber waste recycling3612323113103311
Recovery of polymers other than plastics or rubbers5223182310781815111751410
Recovery of luminescent materials000000000010010
Recovery of fats, fatty oils, fatty acids or other fatty substances, e.g. lanolin or waxes2377446611328225
Recovery of tanning agents from leather000000000000010
Recycling of wood or furniture waste012200002000000
Packaging reuse or recycling2129288181581795132315920
Recycling of waste of electrical or electronic equipment (WEEE)533120005021121
Recycling of batteries1551003101124438
Recycling of fuel cells000110100041000
Nuclear fuel reprocessing009001202220003
Reuse, recycling or recovery technologies cross-cutting to different types of waste425477365760556384664975767467
Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas (GHG) emissions mitigation5172281115152215282017142113
Hide subtree Capture, storage, sequestration or disposal of greenhouse gases112094427212215623824719218316111091104
Capture, storage, sequestration or disposal of greenhouse gasesCO2 capture or storage (CCS)815543255102150209219172171139928391
Capture or disposal of greenhouse gases other than CO235401017206292820122218813
Hide subtree Climate change mitigation technologies related to transportation174265543296269305357411454483482388383282323
Climate change mitigation technologies related to transportationHide subtree Road transport143207368211204210211253299320283200270149175
Road transportConventional vehicles (based on internal combustion engine)11115224298126109809212613091731465465
Hybrid vehicles4102440253624302949321931916
Electric vehicles21357658495710011912712513188747476
Fuel efficiency-improving vehicle design (common to all road vehicles)71026154871217162920191218
Rail transport39121045831716712101415
Maritime or waterways transport9145515101215614193322211419
Air transport1420652825475665566070111475157
Hide subtree Enabling technologies in transport51542322531677968638742354957
Enabling technologies in transportElectric vehicle charging51324191316566658448233303548
Not elsewhere classified (e.g. fuel cell and hydrogen technology for transportation)021813121511131019595149
Hide subtree Climate change mitigation technologies related to buildings95162372183195245261348423378398370374298396
Climate change mitigation technologies related to buildingsIntegration of renewable energy sources in buildings16265846481071061601481151278283101105
Hide subtree Energy efficiency in buildings71110259118113119123158233195203229201146229
Energy efficiency in buildingsLighting81565382223393443313152503248
Heating, ventilation or air conditioning [HVAC]345176514453465488757265574460
Home appliances151634143122101527273725281820
Elevators, escalators and moving walkways000022013122102
End-user side142884151419285472616185655299
Architectural or constructional elements improving the thermal performance of buildings412150150334897166
Enabling technologies in buildings41440191919282738605739894343
Hide subtree Climate change mitigation technologies in the production or processing of goods5127591 5136877358369359891 3221 1359621 012952815768
Climate change mitigation technologies in the production or processing of goodsHide subtree Technologies related to metal processing120191269141125147164133175175160160198161164
Technologies related to metal processingReduction of greenhouse gas (GHG) emissions1641472612171726332621216053
Process efficiency104150222115113130147107142149139139138156161
Hide subtree Technologies relating to chemical industry254377713269341340359392496439388445287280208
Technologies relating to chemical industryGeneral improvement of production processes causing greenhouse gases (GHG) emissions4985208104122146170192284240179225176160103
Improvements relating to chlorine production103000100001000
Improvements relating to adipic acid or caprolactam production001000010000000
Improvements relating to chlorodifluoromethane (HCFC-22) production000000000000000
Improvements relating to the production of products other than chlorine, adipic acid, caprolactam, or chlorodifluoromethane, e.g. bulk or fine chemicals or pharmaceuticals204292501165219194188199212199209219111120105
Hide subtree Technologies relating to oil refining and petrochemical industry10123754841121381221801501121091416247
Technologies relating to oil refining and petrochemical industryReduction of greenhouse gas (GHG) emissions during production processes00112241151252356
Bio-feedstock851423626487831291099671614835
Carbon capture or storage (CCS) specific to hydrogen production00862818191311324611
Ethylene production2714241838291923188343185
Hide subtree Technologies relating to the processing of minerals303668282228377357303137342235
Technologies relating to the processing of mineralsProduction of cement542081015216045102119231022
Cement grinding432210342301030
Manufacturing or processing of sand or stone000000010000000
Production or processing of lime0871520126010512
Glass production1319341557935451158
Production of ceramic materials or ceramic elements825214443756533
Hide subtree Technologies relating to agriculture, livestock or agroalimentary industries28336330254145587277707285100107
Technologies relating to agriculture, livestock or agroalimentary industriesAgricultural machinery or equipment13782438101213178142019
Reduction of greenhouse gas (GHG) emissions in agriculture9152513720251922352529395461
Land use policy measures000000001000010
Afforestation or reforestation021101201000011
Livestock or poultry management001021033322001
Fishing102110119442126
Apiculture000000000010000
Food processing592613111692524222131312219
Technologies in the production process for final industrial or consumer products384017211584951371191761389410911210164
Climate change mitigation technologies for sector-wide applications41020201222202549443938261841
Enabling technologies with a potential contribution to greenhouse gas (GHG) emissions mitigation24301401830393166110635735565895
Data extracted on 22 Sep 2019 20:36 UTC (GMT) from OECD.Stat

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