Coverage
Patent office
UnitNumber
Year200620072008200920102011201220132014
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Technology domain
All technologies (total patents)35 20133 56032 92333 23034 21334 70936 02737 91436 074
Selected environment-related technologies2 7613 1123 3753 7054 2273 9593 9053 5913 071
Hide subtree Environmental management1 5591 5891 6981 8732 1431 8941 7081 7401 544
Environmental managementHide subtree Air pollution abatement627568636733870684655641558
Air pollution abatementEmissions abatement from stationary sources (e.g. SOx, NOx, PM emissions from combustion plants)153173249322351297260270207
Emissions abatement from mobile sources (e.g. NOx, CO, HC, PM emissions from motor vehicles)224187161209271219209185162
Not elsewhere classified250208226202248168186186189
Hide subtree Water pollution abatement507576603638750680587631571
Water pollution abatementWater and wastewater treatment494563587625728652563612545
Fertilizers from wastewater1148578627
Oil spill cleanup29881520181719
Hide subtree Waste management392415422449478487426432363
Waste managementSolid waste collection484260575342552743
Material recovery, recycling and re-use170166181203189206194185143
Fertilizers from waste302027222638291923
Incineration and energy recovery386744495959357156
Waste management – Not elsewhere classified10612011011815114211313098
Soil remediation252226452627342021
Environmental monitoring88118191661631
Hide subtree Water-related adaptation technologies248240321278312250249231248
Water-related adaptation technologiesHide subtree Demand-side technologies (water conservation)150141207211249190206191225
Demand-side technologies (water conservation)Indoor water conservation383828323534382339
Irrigation water conservation554311810713669907371
Water conservation in thermoelectric power production162516254341363764
Water distribution413545473546425851
Hide subtree Supply-side technologies (water availability)9899114676360434023
Supply-side technologies (water availability)Water collection (rain, surface and ground-water)708080555652363318
Water storage2819341278775
Hide subtree Climate change mitigation1 7692 1412 3342 6603 0792 9512 9592 6692 158
Climate change mitigationHide subtree Climate change mitigation technologies related to wastewater treatment or waste management 282268258295352337312346254
Climate change mitigation technologies related to wastewater treatment or waste management Wastewater treatment7698106135147130120147100
Hide subtree Solid waste management195155137140193178173183140
Solid waste managementWaste collection, transportation, transfer or storage222301200
Waste processing or separation0153011510
Landfill technologies aiming to mitigate methane emissions210112612
Bio-organic fraction processing; production of fertilisers from the organic fraction of waste or refuse171119232029201315
Hide subtree Reuse, recycling or recovery technologies174126113113171145140168123
Reuse, recycling or recovery technologiesDismantling or mechanical processing of waste for the recovery of materials during separation, disassembly, pre-processing or upgrading15785157224
Metal recycling822099374
Disassembly of vehicles for recovery of salvageable parts000000000
Construction or demolition [C&D] waste002120000
Glass recycling131012011
Plastics recycling38211211181924249
Paper recycling5054371431
Disintegrating fibre-containing textile articles to obtain fibres for re-use002000000
Rubber waste recycling231131133
Recovery of polymers other than plastics or rubbers231077171411185
Recovery of luminescent materials000000100
Recovery of fats, fatty oils, fatty acids or other fatty substances, e.g. lanolin or waxes4466113282
Recovery of tanning agents from leather000000000
Recycling of wood or furniture waste (production of fertilisers from the organic fraction of waste or refuse)000020000
Packaging reuse or recycling (bio-packaging)181581795132214
Recycling of waste of electrical or electronic equipment200050211
Recycling of batteries0031011244
Recycling of fuel cells101000411
Nuclear fuel reprocessing012022200
Reuse, recycling or recovery technologies cross-cutting to different types of waste576053608465497474
Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas (GHG) emissions mitigation111515201229191614
Hide subtree Climate change mitigation technologies related to energy generation, transmission or distribution7551 2431 3911 7902 0451 7571 7541 5061 234
Climate change mitigation technologies related to energy generation, transmission or distributionHide subtree Renewable energy generation3726407109451 051855776635467
Renewable energy generationWind energy94158185217273175163157126
Solar thermal energy82132151223267232191130103
Solar photovoltaic (PV) energy127188214318331302234205144
Solar thermal-PV hybrids5781414810115
Geothermal energy210720151721135
Marine energy327666907862896544
Hydro energy306979637359685440
Hide subtree Energy generation from fuels of non-fossil origin167276285363399388319387265
Energy generation from fuels of non-fossil originBiofuels120174202249264278233242166
Fuel from waste47102831141351108614599
Hide subtree Nuclear energy6113329373446
Nuclear energyNuclear fusion reactors6102324272233
Nuclear fission reactors01105101213
Hide subtree Combustion technologies with mitigation potential (e.g. using fossil fuels, biomass, waste, etc.)5168112125161141120178113
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.)2151546396636010080
Technologies for improved input efficiency (Efficient combustion or heat usage)301758626578607833
Hide subtree Technologies for an efficient electrical power generation, transmission or distribution1416322945262152358
Technologies for an efficient electrical power generation, transmission or distributionSuperconducting electric elements or equipment778514181322
Not elsewhere classified7924244422342036
Hide subtree Enabling technologies in the energy sector141215236291315289303246262
Enabling technologies in the energy sectorHide subtree Energy storage547658851149111810886
Energy storageBatteries121212254028362526
Capacitors151923161215332111
Thermal storage222614242732282621
Pressurised fluid storage111171731234
Mechanical storage333435161
Pumped storage155915882723
Hydrogen technology46658712311697817477
Fuel cells324742374566623974
Smart grids in the energy sector92749464035422525
Other energy conversion or management systems reducing greenhouse gas emissions41713344521183323
Hide subtree Capture, storage, sequestration or disposal of greenhouse gases72122155231242187184158107
Capture, storage, sequestration or disposal of greenhouse gasesCO2 capture or storage (CCS)5510214920221717017213790
Capture or disposal of greenhouse gases other than CO217206292517122117
Hide subtree Climate change mitigation technologies related to transportation268301363401438472459363348
Climate change mitigation technologies related to transportationHide subtree Road transport206209216252293315275188242
Road transportConventional vehicles (based on internal combustion engine)12611180921221259176142
Hybrid vehicles253624302949311925
Electric vehicles48541001161221251247560
Fuel efficiency-improving vehicle design (common to all road vehicles)7812142016291815
Rail transport4683171671110
Maritime or waterways transport9111561518282220
Air transport2445566145606410442
Hide subtree Enabling technologies in transport253068796863853834
Enabling technologies in transportElectric vehicle charging131657665844802929
Application of fuel cell and hydrogen technology to transportation121411131019595
Hide subtree Climate change mitigation technologies related to buildings276334387446518498537547470
Climate change mitigation technologies related to buildingsIntegration of renewable energy sources in buildings471061061591421101197974
Hide subtree Energy efficiency in buildings195207250257337323352425309
Energy efficiency in buildingsLighting242239344231384943
Heating, ventilation or air conditioning [HVAC]545648488570696054
Home appliances312310152727372525
Information and communication technologies7186121102117134146230130
Elevators, escalators and moving walkways220131220
End-user side131832576360605957
Architectural or constructional elements improving the thermal performance of buildings1523348971
Enabling technologies in buildings191928273557573686
Hide subtree Climate change mitigation technologies in the production or processing of goods7198229309661 2341 068909925821
Climate change mitigation technologies in the production or processing of goodsHide subtree Technologies related to metal processing133154170141179180161161195
Technologies related to metal processingReduction of greenhouse gas (GHG) emissions1217172633251820..
Hide subtree Process efficiency121138153115146158138136..
Process efficiencyby recovering materials9112213687116117116109..
by increasing the energy efficiency of the process2814172628382127..
characterised by the energy source22022310..
Hide subtree Technologies relating to chemical industry337338351379472418369407261
Technologies relating to chemical industryGeneral improvement of production processes causing greenhouse gases (GHG) emissions116142166180264216169202..
Improvements relating to chlorine production00100000..
Improvements relating to adipic acid or caprolactam production00010000..
Improvements relating to chlorodifluoromethane (HCFC-22) production00000000..
Improvements relating to the production of products other than chlorine, adipic acid, caprolactam, or chlorodifluoromethane, e.g. bulk or fine chemicals or pharmaceuticals304352245271297271257265..
Hide subtree Technologies relating to oil refining and petrochemical industry8411013811417914210410596
Technologies relating to oil refining and petrochemical industryReduction of greenhouse gas (GHG) emissions during production processes2141151052..
Bio-feedstock556283741271008363..
Carbon capture or storage (CCS) specific to hydrogen production281919111133..
Ethylene production183822192317733..
Hide subtree Technologies relating to the processing of minerals232735665628323932
Technologies relating to the processing of mineralsProduction of cement1015185345102220..
Cement grinding10342200..
Manufacturing or processing of sand or stone00010000..
Production or processing of lime610124010..
Glass production51934451..
Production of ceramic materials or ceramic elements14443642..
Hide subtree Technologies relating to agriculture, livestock or agroalimentary industries234044596676645367
Technologies relating to agriculture, livestock or agroalimentary industriesAgricultural machinery or equipment2278913126..
Reduction of greenhouse gas (GHG) emissions in agriculture1125242223352332..
Land use policy measures00001000..
Afforestation or reforestation00201000..
Livestock or poultry management21033322..
Fishing10106432..
Apiculture00000010..
Food processing101592619201811..
Climate change mitigation technologies in the production process for final industrial or consumer products000120000098
Climate change mitigation technologies for sector-wide applications111919243336373125
Enabling technologies with a potential contribution to greenhouse gas (GHG) emissions mitigation253834637648512847
Data extracted on 21 Oct 2018 15:19 UTC (GMT) from OECD.Stat

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