Coverage
Patent office
UnitNumber
Year19901995200020052006200720082009201020112012201320142015
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Technology domain
All technologies (total patents)25 54135 31088 77734 93935 00133 34132 75733 12634 18434 72736 03538 02636 26036 592
Selected environment-related technologies1 7772 6065 1482 4822 6753 0143 2453 6104 1723 8613 7803 4513 0302 721
Hide subtree Environmental management1 0591 5792 8751 4621 5541 5701 6881 8742 1671 9001 7111 7761 5991 241
Environmental managementHide subtree Air pollution abatement3605321 044511620563631734879687656651579380
Air pollution abatementEmissions abatement from stationary sources (e.g. SOx, NOx, PM emissions from combustion plants)86140223122153171248325351298263270214130
Emissions abatement from mobile sources (e.g. NOx, CO, HC, PM emissions from motor vehicles)172214442205220187158208275220208192174121
Not elsewhere classified102178379184247205225201253169185189191129
Hide subtree Water pollution abatement3984931 020552511569596635761683592637591486
Water pollution abatementWater and wastewater treatment356465979537498558580623738656568618565478
Fertilizers from wastewater4510711485886271
Oil spill cleanup3823318278715191817197
Hide subtree Waste management279511720380390411422453481488423454376345
Waste managementSolid waste collection3868767248425959544354324454
Material recovery, recycling and re-use101224322141169164182204189205194197148132
Fertilizers from waste1345683730202722273830202430
Incineration and energy recovery41691073738654550566034746036
Waste management – Not elsewhere classified861051479310512010911815514211113110093
Soil remediation2041801025202545262734212217
Environmental monitoring221198714720156133113
Hide subtree Water-related adaptation technologies85133202192245239320279312252249231255162
Water-related adaptation technologiesHide subtree Demand-side technologies (water conservation)78111174125149140207214249193206191232131
Demand-side technologies (water conservation)Indoor water conservation922162637382833353435224121
Irrigation water conservation1822644955441181081357092747351
Water conservation in thermoelectric power production916292116231626434236376414
Water distribution4251652941354547364743585445
Hide subtree Supply-side technologies (water availability)7222867969911365635943402331
Supply-side technologies (water availability)Water collection (rain, surface and ground-water)720274168807953565136331825
Water storage0212628193412787756
Hide subtree Climate change mitigation1 0631 6423 3271 5131 6922 0492 2122 5713 0212 8612 8332 5052 0911 951
Climate change mitigationHide subtree Climate change mitigation technologies related to wastewater treatment or waste management 193358526229286270264307367340312348256283
Climate change mitigation technologies related to wastewater treatment or waste management Wastewater treatment489015395809811013915613312014910283
Hide subtree Solid waste management140251351126195157139146196179172182141179
Solid waste managementWaste collection, transportation, transfer or storage12252223012000
Waste processing or separation002001720115103
Landfill technologies aiming to mitigate methane emissions65302101126110
Bio-organic fraction processing; production of fertilisers from the organic fraction of waste or refuse1333582517112024212921141539
Hide subtree Reuse, recycling or recovery technologies12021128696174126115118173146138166125137
Reuse, recycling or recovery technologiesDismantling or mechanical processing of waste for the recovery of materials during separation, disassembly, pre-processing or upgrading916283157851572247
Metal recycling407282201093841
Disassembly of vehicles for recovery of salvageable parts00000000000000
Construction or demolition [C&D] waste10410021200002
Glass recycling13231310120111
Plastics recycling1136591938211211181823221016
Paper recycling153111150553714316
Disintegrating fibre-containing textile articles to obtain fibres for re-use02100020000000
Rubber waste recycling361232311310331
Recovery of polymers other than plastics or rubbers52231823107818151117515
Recovery of luminescent materials00000000001001
Recovery of fats, fatty oils, fatty acids or other fatty substances, e.g. lanolin or waxes237744661132822
Recovery of tanning agents from leather00000000000001
Recycling of wood or furniture waste (production of fertilisers from the organic fraction of waste or refuse)01220000200000
Packaging reuse or recycling (bio-packaging)21292881815817951322148
Recycling of waste of electrical or electronic equipment53312000502112
Recycling of batteries155100310112443
Recycling of fuel cells00011010004100
Nuclear fuel reprocessing00900120222000
Reuse, recycling or recovery technologies cross-cutting to different types of waste4254773657605563846649747671
Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas (GHG) emissions mitigation51722811151522152820171321
Hide subtree Climate change mitigation technologies related to energy generation, transmission or distribution2394271 1236717541 2351 3811 7862 0821 7871 7481 5271 2811 176
Climate change mitigation technologies related to energy generation, transmission or distributionHide subtree Renewable energy generation1002054893323736367019301 054866768639485511
Renewable energy generationWind energy1230130909415818421427518216316012997
Solar thermal energy3265735381129148218263230188125104103
Solar photovoltaic (PV) energy4561183121129186215313333310233208152208
Solar thermal-PV hybrids0794587111391011723
Geothermal energy151242107201817191357
Marine energy314293132766391806090664739
Hydro energy723532930697763725865564134
Hide subtree Energy generation from fuels of non-fossil origin265213098166274286368415395320392271211
Energy generation from fuels of non-fossil originBiofuels12297762119172201250274280234248171138
Fuel from waste1423533647102851181411158614410073
Hide subtree Nuclear energy2627436610332936344758
Nuclear energyNuclear fusion reactors241716569232427223447
Nuclear fission reactors210271011059121311
Hide subtree Combustion technologies with mitigation potential (e.g. using fossil fuels, biomass, waste, etc.)255910844516910912616614912018311461
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.)182964262151516310169601058139
Technologies for improved input efficiency (Efficient combustion or heat usage)730441830185863658060783322
Hide subtree Technologies for an efficient electrical power generation, transmission or distribution10145815141531294828213256044
Technologies for an efficient electrical power generation, transmission or distributionSuperconducting electric elements or equipment743547675141793227
Not elsewhere classified3102311792424472434223837
Hide subtree Enabling technologies in the energy sector5165281158140213238296320292306251281248
Enabling technologies in the energy sectorHide subtree Energy storage22301304854755885109911201139270
Energy storageBatteries7517412111225392837262920
Capacitors49531015192316121533221114
Thermal storage1014382222261424283229272426
Pressurised fluid storage001251111717312341
Mechanical storage11853334341614
Pumped storage01221559109829235
Hydrogen technology14128370466589128119100817579106
Fuel cells1113553531464237496562388050
Smart grids in the energy sector4101359274946433643253022
Other energy conversion or management systems reducing greenhouse gas emissions1514184181334502118332343
Hide subtree Capture, storage, sequestration or disposal of greenhouse gases112094427212215623824719218315810886
Capture, storage, sequestration or disposal of greenhouse gasesCO2 capture or storage (CCS)8155432551021502092191721711369180
Capture or disposal of greenhouse gases other than CO2354010172062928201222176
Hide subtree Climate change mitigation technologies related to transportation170261541297270305362404450479474373365244
Climate change mitigation technologies related to transportationHide subtree Road transport139205371212207210217255295322282193254130
Road transportConventional vehicles (based on internal combustion engine)111152242981261098092123130907314450
Hybrid vehicles41024402536243029493219297
Electric vehicles193576584957100119123127131826561
Fuel efficiency-improving vehicle design (common to all road vehicles)582916781314201629191612
Rail transport391210458317167111013
Maritime or waterways transport91455151012156141833222114
Air transport14186128244755615660651074643
Hide subtree Enabling technologies in transport515423225316779686387403444
Enabling technologies in transportElectric vehicle charging513241913165666584482312930
Application of fuel cell and hydrogen technology to transportation02181312151113101959514
Hide subtree Climate change mitigation technologies related to buildings95157361180193246266349415371394354348263
Climate change mitigation technologies related to buildingsIntegration of renewable energy sources in buildings1626584648107105160144113126797691
Hide subtree Energy efficiency in buildings71105249115111118130159229191202232183129
Energy efficiency in buildingsLighting815653822223935433131524627
Heating, ventilation or air conditioning [HVAC]3446664842534648847269565041
Home appliances1516341431221015272737252618
Information and communication technologies000000100021302
Elevators, escalators and moving walkways00002201312210
End-user side1428841514193460726061846041
Architectural or constructional elements improving the thermal performance of buildings41216015233489715
Enabling technologies in buildings414381919192827385957368838
Hide subtree Climate change mitigation technologies in the production or processing of goods5167401 4916757228239339861 3011 104933971864751
Climate change mitigation technologies in the production or processing of goodsHide subtree Technologies related to metal processing120195276144130150166139178175162164195160
Technologies related to metal processingReduction of greenhouse gas (GHG) emissions164147261217172633252121605
Hide subtree Process efficiency104154229118118133149113145150141143135155
Process efficiencyby recovering materials921351951049012213688115115117114106115
by increasing the energy efficiency of the process1216341326101323283523292939
characterised by the energy source03012102201001
Hide subtree Technologies relating to chemical industry254376712266338340359389487436385432280267
Technologies relating to chemical industryGeneral improvement of production processes causing greenhouse gases (GHG) emissions4985208101119147170192276235176220174154
Improvements relating to chlorine production10300010000100
Improvements relating to adipic acid or caprolactam production00100001000000
Improvements relating to chlorodifluoromethane (HCFC-22) production00000000000000
Improvements relating to the production of products other than chlorine, adipic acid, caprolactam, or chlorodifluoromethane, e.g. bulk or fine chemicals or pharmaceuticals204291500165219193188196211201209211106113
Hide subtree Technologies relating to oil refining and petrochemical industry10123753841101361161801501041059856
Technologies relating to oil refining and petrochemical industryReduction of greenhouse gas (GHG) emissions during production processes0011214115125234
Bio-feedstock8514226263867712910989692443
Carbon capture or storage (CCS) specific to hydrogen production0086281819131132401
Ethylene production271424183828192318732318
Hide subtree Technologies relating to the processing of minerals3036662822283773573031383422
Technologies relating to the processing of mineralsProduction of cement5420810152160451021202310
Cement grinding43221034230103
Manufacturing or processing of sand or stone00000001000000
Production or processing of lime087152012601051
Glass production131932155793545115
Production of ceramic materials or ceramic elements82521444375653
Hide subtree Technologies relating to agriculture, livestock or agroalimentary industries3131633024414458717770556897
Technologies relating to agriculture, livestock or agroalimentary industriesAgricultural machinery or equipment137823381012131781220
Reduction of greenhouse gas (GHG) emissions in agriculture121325137202419213525293952
Land use policy measures00000000100001
Afforestation or reforestation02110120100001
Livestock or poultry management00102103332200
Fishing10211011944211
Apiculture00000000001000
Food processing5926131116925242221141622
Climate change mitigation technologies in the production process for final industrial or consumer products0000830001730010700
Climate change mitigation technologies for sector-wide applications410202012191925434339342517
Enabling technologies with a potential contribution to greenhouse gas (GHG) emissions mitigation243114018293934661125351365537
Data extracted on 17 Jul 2019 11:02 UTC (GMT) from OECD.Stat

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