Coverage
Patent office
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Technology domain
All technologies (total patents)22 26060 01035 07135 19433 55232 89833 20734 19434 62235 71837 722
Selected environment-related technologies1 7124 3802 7262 8333 2823 4233 7084 2423 9383 7973 490
Hide subtree Environmental management9412 1001 4701 5491 5761 6891 8362 1121 8281 6581 645
Environmental managementHide subtree Air pollution abatement340736510620565636726853662634625
Air pollution abatementEmissions abatement from stationary sources (e.g. SOx, NOx, PM emissions from combustion plants)79167121151171249320342286256265
Emissions abatement from mobile sources (e.g. NOx, CO, HC, PM emissions from motor vehicles)169297206221187161208267214200183
Not elsewhere classified92272183248207226198244162178177
Hide subtree Water pollution abatement348752561506575600631744662568601
Water pollution abatementWater and wastewater treatment315722546493562584618722635544584
Fertilizers from wastewater477114857862
Oil spill cleanup29238298815191815
Hide subtree Waste management237549381390406416426470461416386
Waste managementSolid waste collection3257724842605553425427
Material recovery, recycling and re-use95252140169158176182182187189164
Fertilizers from waste1051383020272226372819
Incineration and energy recovery3086373866444959543553
Waste management – Not elsewhere classified7010394105120109118150141110123
Soil remediation1456102522264526273418
Environmental monitoring278881181916615
Hide subtree Water-related adaptation technologies80153195248238320274299249242222
Water-related adaptation technologiesHide subtree Demand-side technologies (water conservation)73133128150139206207236189199184
Demand-side technologies (water conservation)Indoor water conservation815283838272935343721
Irrigation water conservation1744495543118107125688873
Water conservation in thermoelectric power production917221624162542413536
Water distribution3957294134454634463954
Hide subtree Supply-side technologies (water availability)7206798991146763604338
Supply-side technologies (water availability)Water collection (rain, surface and ground-water)717417080805556523631
Water storage0326281934127877
Hide subtree Climate change mitigation1 0623 0611 7661 8552 3112 3882 6843 1142 9502 8732 597
Climate change mitigationHide subtree Climate change mitigation technologies related to wastewater treatment or waste management 151401240278267254286363332311304
Climate change mitigation technologies related to wastewater treatment or waste management Wastewater treatment401171017596101133147129120127
Hide subtree Solid waste management107264128192156132135192173171161
Solid waste managementWaste collection, transportation, transfer or storage10522230120
Waste processing or separation000017200151
Landfill technologies aiming to mitigate methane emissions53021011261
Bio-organic fraction processing; production of fertilisers from the organic fraction of waste or refuse1146261711192320282012
Hide subtree Reuse, recycling or recovery technologies9021597171125109108171141138147
Reuse, recycling or recovery technologiesDismantling or mechanical processing of waste for the recovery of materials during separation, disassembly, pre-processing or upgrading72431467414721
Metal recycling36262209937
Disassembly of vehicles for recovery of salvageable parts00000000000
Construction or demolition [C&D] waste02100212000
Glass recycling10313101201
Plastics recycling848193821121118182423
Paper recycling14101505337141
Disintegrating fibre-containing textile articles to obtain fibres for re-use01000200000
Rubber waste recycling410323113011
Recovery of polymers other than plastics or rubbers419823106717141118
Recovery of luminescent materials00000000010
Recovery of fats, fatty oils, fatty acids or other fatty substances, e.g. lanolin or waxes237446611328
Recovery of tanning agents from leather00000000000
Recycling of wood or furniture waste (production of fertilisers from the organic fraction of waste or refuse)01200002000
Packaging reuse or recycling (bio-packaging)132081815814951314
Recycling of waste of electrical or electronic equipment53120005011
Recycling of batteries151003101124
Recycling of fuel cells00110100041
Nuclear fuel reprocessing07001202220
Reuse, recycling or recovery technologies cross-cutting to different types of waste2856375760516085634867
Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas (GHG) emissions mitigation420111115211824302016
Hide subtree Climate change mitigation technologies related to energy generation, transmission or distribution2201 0307738261 3321 4521 7852 0591 7601 7241 439
Climate change mitigation technologies related to energy generation, transmission or distributionHide subtree Renewable energy generation893743423736457229641 065867769615
Renewable energy generationWind energy12909193158186219276174164154
Solar thermal energy22515582132151223266230186129
Solar photovoltaic (PV) energy43161125131193227336344317234195
Solar thermal-PV hybrids044376141481011
Geothermal energy27521072015172012
Marine energy321323276669078628761
Hydro energy740303069796272596853
Hide subtree Energy generation from fuels of non-fossil origin239298163270284355380376305376
Energy generation from fuels of non-fossil originBiofuels115362120173201244251270222233
Fuel from waste12393643978311112910683143
Hide subtree Nuclear energy819661133283534
Nuclear energyNuclear fusion reactors87561023232622
Nuclear fission reactors012101105912
Hide subtree Combustion technologies with mitigation potential (e.g. using fossil fuels, biomass, waste, etc.)2071423963849712311184141
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.)1647262150546491635898
Technologies for improved input efficiency (Efficient combustion or heat usage)424161813303332482643
Hide subtree Technologies for an efficient electrical power generation, transmission or distribution11351514153129432621523
Technologies for an efficient electrical power generation, transmission or distributionSuperconducting electric elements or equipment71747675141814
Not elsewhere classified4181179242442223419
Hide subtree Enabling technologies in the energy sector69431252228309314303378324331248
Enabling technologies in the energy sectorHide subtree Energy storage36144616293689212795121102
Energy storageBatteries2292222029223253344837
Capacitors418101519231612153220
Thermal storage1024222226142427322626
Pressurised fluid storage0351111717373
Mechanical storage06033343405
Pumped storage0121559157811
Hydrogen technology9596946658682115967855
Fuel cells202151171111241138597989270
Smart grids in the energy sector4135927474439354021
Other energy conversion or management systems reducing greenhouse gas emissions0818319143442211732
Hide subtree Capture, storage, sequestration or disposal of greenhouse gases11794172122155231237179180156
Capture, storage, sequestration or disposal of greenhouse gasesCO2 capture or storage (CCS)8443155102149202214162168135
Capture or disposal of greenhouse gases other than CO233510172062923171221
Hide subtree Climate change mitigation technologies related to transportation158408286265293351397421449410329
Climate change mitigation technologies related to transportationHide subtree Road transport127273201203204206250283296247166
Road transportConventional vehicles (based on internal combustion engine)1061819812411278911191218775
Hybrid vehicles421392536233029473115
Electric vehicles15595648529811512211512171
Fuel efficiency-improving vehicle design (common to all road vehicles)212864714131385
Rail transport4121045831716711
Maritime or waterways transport9391591015614182321
Air transport1555282444566041565195
Hide subtree Enabling technologies in transport329322530667866638236
Enabling technologies in transportElectric vehicle charging315191316556658447828
Application of fuel cell and hydrogen technology to transportation014131214111281948
Hide subtree Climate change mitigation technologies related to buildings103410262247311368425480467470455
Climate change mitigation technologies related to buildingsIntegration of renewable energy sources in buildings1242444710510316014210211470
Hide subtree Energy efficiency in buildings82325198168188234235302301294351
Energy efficiency in buildingsLighting839382224403138344152
Heating, ventilation or air conditioning [HVAC]3459495356474779646553
Home appliances1629141412101522193316
Information and communication technologies12146856477105909912593174
Elevators, escalators and moving walkways00022013122
End-user side1252121317325161586054
Architectural or constructional elements improving the thermal performance of buildings5160150334886
Enabling technologies in buildings427201718282732565428
Hide subtree Climate change mitigation technologies in the production or processing of goods5641 4257767919489519741 2441 080893928
Climate change mitigation technologies in the production or processing of goodsHide subtree Technologies related to metal processing119235145133155170141179183156156
Technologies related to metal processingReduction of greenhouse gas (GHG) emissions1645261217172633251820
Hide subtree Process efficiency103190119121138153115146158138136
Process efficiencyby recovering materials861691049112213687116117116109
by increasing the energy efficiency of the process1721142814172628382127
characterised by the energy source00122022310
Hide subtree Technologies relating to chemical industry310826386420494412452561487426467
Technologies relating to chemical industryGeneral improvement of production processes causing greenhouse gases (GHG) emissions3914299116142166180264216169202
Improvements relating to chlorine production12000100000
Improvements relating to adipic acid or caprolactam production01000010000
Improvements relating to chlorodifluoromethane (HCFC-22) production00000000000
Improvements relating to the production of products other than chlorine, adipic acid, caprolactam, or chlorodifluoromethane, e.g. bulk or fine chemicals or pharmaceuticals270681287304352245271297271257265
Hide subtree Technologies relating to oil refining and petrochemical industry928537710912811317613898101
Technologies relating to oil refining and petrochemical industryReduction of greenhouse gas (GHG) emissions during production processes0112141151052
Bio-feedstock71022556283741271008363
Carbon capture or storage (CCS) specific to hydrogen production066281919111133
Ethylene production21124183822192317733
Hide subtree Technologies relating to the processing of minerals2748282321346656263133
Technologies relating to the processing of mineralsProduction of cement51681015185345102220
Cement grinding41210342200
Manufacturing or processing of sand or stone00000010000
Production or processing of lime051610124010
Glass production12221551934451
Production of ceramic materials or ceramic elements64214443642
Hide subtree Technologies relating to agriculture, livestock or agroalimentary industries3258292643435962755953
Technologies relating to agriculture, livestock or agroalimentary industriesAgricultural machinery or equipment10522278913126
Reduction of greenhouse gas (GHG) emissions in agriculture1629161125242223352332
Land use policy measures00000001000
Afforestation or reforestation01000201000
Livestock or poultry management00021033322
Fishing13110106432
Apiculture00000000010
Food processing52010101592619201811
Climate change mitigation technologies in the production process for final industrial or consumer products01641180014600136910
Climate change mitigation technologies for sector-wide applications138198920151310
Enabling technologies with a potential contribution to greenhouse gas (GHG) emissions mitigation256392616101920201918
Data extracted on 24 Sep 2017 07:00 UTC (GMT) from OECD.Stat

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