IPC Green Inventory

  1. The “IPC Green Inventory” was developed by the IPC Committee of Experts in order to facilitate searches for patent information relating to so-called Environmentally Sound Technologies (ESTs), as listed by the United Nations Framework Convention on Climate Change (UNFCCC).
  2. ESTs are currently scattered widely across the IPC in numerous technical fields.  The Inventory attempts to collect ESTs in one place, although it should be noted that the Inventory does not purport to be fully exhaustive in its coverage.
  3. ESTs are presented in a hierarchical structure.  Clicking on the  sign opens the hierarchy of the relevant technology.  For each technology, the links in the IPC column direct the user to the corresponding place in the scheme.
  4. It should be noted that each EST and its corresponding IPC place(s) do not necessarily coincide and that the EST may represent a subset of the corresponding IPC place.
  5. The links in the PATENTSCOPE column allow the user to automatically search and display all international patent applications available through PATENTSCOPE which are classified in the relevant IPC place.  In view of paragraph 4, above, search results may additionally include irrelevant results not relating to ESTs.
  6. For IPC place ranges (e.g. Fuel cells H01M 4/86-4/98), the search result is limited to the first symbol of the range (e.g. H01M 4/86).  If searching additional symbols falling in the range is desirable, this can be done either manually in PATENTSCOPE or via the IPC scheme by using the “bridge” function (“magnifying lens ” button).

 

TOPIC IPC PATENTSCOPE
ALTERNATIVE ENERGY PRODUCTION  
.     Bio-fuels
. .     Solid fuels C10L 5/00, 5/40-5/48 C10L 5/00, 5/40-5/48
. . .     Torrefaction of biomass C10B 53/02
C10L 5/40, 9/00
C10B 53/02
C10L 5/40, 9/00
. .     Liquid fuels C10L 1/00, 1/02, 1/14 C10L 1/00, 1/02, 1/14
. . .     Vegetable oils C10L 1/02, 1/19 C10L 1/02, 1/19
. . .     Biodiesel C07C 67/00, 69/00
C10G
C10L 1/02, 1/19
C11C 3/10
C12P 7/64
C07C 67/00, 69/00
C10G
C10L 1/02, 1/19
C11C 3/10
C12P 7/64
. . .     Bioethanol C10L 1/02, 1/182
C12N 9/24
C12P 7/06-7/14
C10L 1/02, 1/182
C12N 9/24
C12P 7/06-7/14
. .     Biogas C02F 3/28, 11/04
C10L 3/00
C12M 1/107
C12P 5/02
C02F 3/28, 11/04
C10L 3/00
C12M 1/107
C12P 5/02
. .     From genetically engineered organisms C12N 1/13, 1/15, 1/21, 5/10, 15/00
A01H
C12N 1/13, 1/15, 1/21, 5/10, 15/00
A01H
.     Integrated gasification combined cycle (IGCC) C10L 3/00
F02C 3/28
C10L 3/00
F02C 3/28
.     Fuel cells H01M 4/86-4/98, 8/00-8/24, 12/00-12/08 H01M 4/86-4/98, 8/00-8/24, 12/00-12/08
. .     Electrodes H01M 4/86-4/98 H01M 4/86-4/98
. . .     Inert electrodes with catalytic activity H01M 4/86-4/98 H01M 4/86-4/98
. .     Non-active parts H01M 2/00-2/04 , 8/00-8/24 H01M 2/00-2/04 , 8/00-8/24
. .     Within hybrid cells H01M 12/00-12/08 H01M 12/00-12/08
.     Pyrolysis or gasification of biomass
C10B 53/00
C10J
C10B 53/00
C10J
.     Harnessing energy from manmade waste
. .     Agricultural waste C10L 5/00 C10L 5/00
. . .     Fuel from animal waste and crop residues C10L 5/42, 5/44 C10L 5/42, 5/44
. . .     Incinerators for field, garden or wood waste F23G 7/00, 7/10 F23G 7/00, 7/10
. .     Gasification C10J 3/02, 3/46
F23B 90/00
F23G 5/027
C10J 3/02, 3/46
F23B 90/00
F23G 5/027
. .     Chemical waste B09B 3/00
F23G 7/00
B09B 3/00
F23G 7/00
. .     Industrial waste C10L 5/48
F23G 5/00, 7/00
C10L 5/48
F23G 5/00, 7/00
. . .     Using top gas in blast furnaces to power pig-iron production C21B 5/06 C21B 5/06
. . .     Pulp liquors D21C 11/00 D21C 11/00
. . .     Anaerobic digestion of industrial waste A62D 3/02
C02F 11/04, 11/14
A62D 3/02
C02F 11/04, 11/14
. . .     Industrial wood waste F23G 7/00, 7/10 F23G 7/00, 7/10
. .     Hospital waste B09B 3/00
F23G 5/00
B09B 3/00
F23G 5/00
. .     Landfill gas B09B B09B
. . .     Separation of components B01D 53/02, 53/04, 53/047, 53/14, 53/22, 53/24 B01D 53/02, 53/04, 53/047, 53/14, 53/22, 53/24
. .     Municipal waste C10L 5/46
F23G 5/00
C10L 5/46
F23G 5/00
.     Hydro energy
. .     Water-power plants E02B 9/00-9/06 E02B 9/00-9/06
. . .     Tide or wave power plants E02B 9/08 E02B 9/08
. .     Machines or engines for liquids F03B
F03C
F03B
F03C
. . .     Using wave or tide energy F03B 13/12-13/26 F03B 13/12-13/26
. .     Regulating, controlling or safety means of machines or engines F03B 15/00-15/22 F03B 15/00-15/22
. .     Propulsion of marine vessels using energy derived from water movement B63H 19/02, 19/04 B63H 19/02, 19/04
.     Ocean thermal energy conversion (OTEC) F03G 7/05 F03G 7/05
.     Wind energy F03D F03D
. .     Structural association of electric generator with mechanical driving motor H02K 7/18 H02K 7/18
. .     Structural aspects of wind turbines B63B 35/00
E04H 12/00
F03D 11/04
B63B 35/00
E04H 12/00
F03D 11/04
. .     Propulsion of vehicles using wind power B60K 16/00 B60K 16/00
. . .     Electric propulsion of vehicles using wind power B60L 8/00 B60L 8/00
. .     Propulsion of marine vessels by wind-powered motors B63H 13/00 B63H 13/00
.     Solar energy
. .     Photovoltaics (PV)
. . .     Devices adapted for the conversion of radiation energy into electrical energy H01L 27/142, 31/00-31/078
H01G 9/20
H02N 6/00
H01L 27/142, 31/00-31/078
H01G 9/20
H02N 6/00
. . . .     Using organic materials as the active part H01L 27/30, 51/42-51/48 H01L 27/30, 51/42-51/48
. . .     Assemblies of a plurality of solar cells H01L 25/00, 25/03, 25/16, 25/18, 31/042
H01L 25/00, 25/03, 25/16, 25/18,
. . .     Silicon; single-crystal growth C01B 33/02
C23C 14/14, 16/24
C30B 29/06
C01B 33/02
C23C 14/14, 16/24
C30B 29/06
. . .     Regulating to the maximum power available from solar cells G05F 1/67 G05F 1/67
. . .     Electric lighting devices with, or rechargeable with, solar cells F21L 4/00
F21S 9/03
F21L 4/00
F21S 9/03
. . .     Charging batteries H02J 7/35 H02J 7/35
. . .     Dye-sensitised solar cells (DSSC) H01G 9/20
H01M 14/00
H01G 9/20
H01M 14/00
. .     Use of solar heat F24J 2/00-2/54 F24J 2/00-2/54
. . .     For domestic hot water systems F24D 17/00 F24D 17/00
. . .     For space heating F24D 3/00, 5/00, 11/00, 19/00 F24D 3/00, 5/00, 11/00, 19/00
. . .     For swimming pools F24J 2/42 F24J 2/42
. . .     Solar updraft towers F03D 1/04, 9/00, 11/04
F03G 6/00
F03D 1/04, 9/00, 11/04
F03G 6/00
. . .     For treatment of water, waste water or sludge C02F 1/14 C02F 1/14
. . .     Gas turbine power plants using solar heat source F02C 1/05 F02C 1/05
. .     Hybrid solar thermal-PV systems H01L 31/058 H01L 31/058
. .     Propulsion of vehicles using solar power B60K 16/00 B60K 16/00
. . .     Electric propulsion of vehicles using solar power B60L 8/00 B60L 8/00
. .     Producing mechanical power from solar energy F03G 6/00-6/06 F03G 6/00-6/06
. .     Roof covering aspects of energy collecting devices E04D 13/00, 13/18 E04D 13/00, 13/18
. .     Steam generation using solar heat F22B 1/00
F24J 1/00
F22B 1/00
F24J 1/00
. .     Refrigeration or heat pump systems using solar energy F25B 27/00 F25B 27/00
. .     Use of solar energy for drying materials or objects F26B 3/00, 3/28 F26B 3/00, 3/28
. .     Solar concentrators F24J 2/06
G02B 7/183
F24J 2/06
G02B 7/183
. .     Solar ponds F24J 2/04 F24J 2/04
.     Geothermal energy
. .     Use of geothermal heat F01K
F24F 5/00
F24J 3/08
H02N 10/00
F25B 30/06
F01K
F24F 5/00
F24J 3/08
H02N 10/00
F25B 30/06
. .     Production of mechanical power from geothermal energy F03G 4/00-4/06, 7/04 F03G 4/00-4/06, 7/04
.     Other production or use of heat, not derived from combustion, e.g. natural heat F24J 1/00, 3/00, 3/06 F24J 1/00, 3/00, 3/06
. .     Heat pumps in central heating systems using heat accumulated in storage masses F24D 11/02 F24D 11/02
. .     Heat pumps in other domestic- or space-heating systems F24D 15/04 F24D 15/04
. .     Heat pumps in domestic hot-water supply systems F24D 17/02 F24D 17/02
. .     Air or water heaters using heat pumps F24H 4/00 F24H 4/00
. .     Heat pumps F25B 30/00 F25B 30/00
.     Using waste heat
. .     To produce mechanical energy F01K 27/00 F01K 27/00
. .     Of combustion engines F01K 23/06-23/10
F01N 5/00
F02G 5/00-5/04
F25B 27/02
F01K 23/06-23/10
F01N 5/00
F02G 5/00-5/04
F25B 27/02
. .     Of steam engine plants F01K 17/00, 23/04 F01K 17/00, 23/04
. .     Of gas-turbine plants F02C 6/18 F02C 6/18
. .     As source of energy for refrigeration plants F25B 27/02 F25B 27/02
. .     For treatment of water, waste water or sewage C02F 1/16 C02F 1/16
. .     Recovery of waste heat in paper production D21F 5/20 D21F 5/20
. .     For steam generation by exploitation of the heat content of hot heat carriers F22B 1/02 F22B 1/02
. .     Recuperation of heat energy from waste incineration F23G 5/46 F23G 5/46
. .     Energy recovery in air conditioning F24F 12/00 F24F 12/00
. .     Arrangements for using waste heat from furnaces, kilns, ovens or retorts F27D 17/00 F27D 17/00
. .     Regenerative heat-exchange apparatus F28D 17/00-20/00 F28D 17/00-20/00
. .     Of gasification plants
C10J 3/86 C10J 3/86
.     Devices for producing mechanical power from muscle energy F03G 5/00-5/08 F03G 5/00-5/08
TRANSPORTATION
.     Vehicles in general
. .     Hybrid vehicles, e.g. Hybrid Electric Vehicles (HEVs) B60K 6/00, 6/20 B60K 6/00, 6/20
. . .     Control systems B60W 20/00 B60W 20/00
. . .     Gearings therefor F16H 3/00-3/78, 48/00-48/30 F16H 3/00-3/78, 48/00-48/30
. .     Brushless motors H02K 29/08 H02K 29/08
. .     Electromagnetic clutches H02K 49/10 H02K 49/10
. .     Regenerative braking systems B60L 7/10-7/22 B60L 7/10-7/22
. .     Electric propulsion with power supply from force of nature, e.g.  sun, wind B60L 8/00 B60L 8/00
. .     Electric propulsion with power supply external to vehicle B60L 9/00 B60L 9/00
. . .     With power supply from fuel cells, e.g. for hydrogen vehicles B60L 11/18 B60L 11/18
. .     Combustion engines operating on gaseous fuels, e.g. hydrogen F02B 43/00
F02M 21/02, 27/02
F02B 43/00
F02M 21/02, 27/02
. .     Power supply from force of nature, e.g. sun, wind B60K 16/00 B60K 16/00
. .     Charging stations for electric vehicles H02J 7/00 H02J 7/00
.     Vehicles other than rail vehicles
. .     Drag reduction
B62D 35/00, 35/02
B63B 1/34-1/40
B62D 35/00, 35/02
B63B 1/34-1/40
. .     Human-powered vehicle B62K
B62M 1/00, 3/00, 5/00, 6/00
B62K
B62M 1/00, 3/00, 5/00, 6/00
.     Rail vehicles B61 B61
. .     Drag reduction B61D 17/02 B61D 17/02
.     Marine vessel propulsion
. .     Propulsive devices directly acted on by wind B63H 9/00 B63H 9/00
. .     Propulsion by wind-powered motors B63H 13/00 B63H 13/00
. .     Propulsion using energy derived from water movement B63H 19/02, 19/04 B63H 19/02, 19/04
. .     Propulsion by muscle power B63H 16/00 B63H 16/00
. .     Propulsion derived from nuclear energy B63H 21/18 B63H 21/18
.     Cosmonautic vehicles using solar energy B64G 1/44 B64G 1/44
ENERGY CONSERVATION
.     Storage of electrical energy B60K 6/28
B60W 10/26
H01M 10/44-10/46
H01G 9/155
H02J 3/28, 7/00, 15/00
B60K 6/28
B60W 10/26
H01M 10/44-10/46
H01G 9/155
H02J 3/28, 7/00, 15/00
.     Power supply circuitry H02J H02J
. .     With power saving modes H02J 9/00 H02J 9/00
.     Measurement of electricity consumption B60L 3/00
G01R
B60L 3/00
G01R
.     Storage of thermal energy C09K 5/00
F24H 7/00
F28D 20/00, 20/02
C09K 5/00
F24H 7/00
F28D 20/00, 20/02
.     Low energy lighting
. .     Electroluminescent light sources (e.g. LEDs, OLEDs, PLEDs) F21K 99/00
F21L 4/02
H01L 33/00-33/64, 51/50
H05B 33/00
F21K 99/00
F21L 4/02
H01L 33/00-33/64, 51/50
H05B 33/00
.     Thermal building insulation, in general E04B 1/62, 1/74-1/80, 1/88, 1/90 E04B 1/62, 1/74-1/80, 1/88, 1/90
. .     Insulating building elements E04C 1/40, 1/41, 2/284-2/296
E04C 1/40, 1/41, 2/284-2/296
. . .     For door or window openings E06B 3/263 E06B 3/263
. . .     For walls E04B 2/00
E04F 13/08
E04B 2/00
E04F 13/08
. . .     For floors E04B 5/00
E04F 15/18
E04B 5/00
E04F 15/18
. . .     For roofs E04B 7/00
E04D 1/28, 3/35, 13/16
E04B 7/00
E04D 1/28, 3/35, 13/16
. . .     For ceilings E04B 9/00
E04F 13/08
E04B 9/00
E04F 13/08
.     Recovering mechanical energy F03G 7/08 F03G 7/08
. .     Chargeable mechanical accumulators in vehicles B60K 6/10, 6/30
B60L 11/16
B60K 6/10, 6/30
B60L 11/16
WASTE MANAGEMENT
.     Waste disposal B09B
B65F
B09B
B65F
.     Treatment of waste
. .     Disinfection or sterilisation A61L 11/00 A61L 11/00
. .     Treatment of hazardous or toxic waste A62D 3/00, 101/00 A62D 3/00, 101/00
. .     Treating radioactively contaminated material; decontamination arrangements therefor G21F 9/00 G21F 9/00
. .     Refuse separation B03B 9/06 B03B 9/06
. .     Reclamation of contaminated soil B09C B09C
. .     Mechanical treatment of waste paper D21B 1/08, 1/32 D21B 1/08, 1/32
.     Consuming waste by combustion F23G F23G
.     Reuse of waste materials
. .     Use of rubber waste in footwear A43B 1/12, 21/14 A43B 1/12, 21/14
. .     Manufacture of articles from waste metal particles B22F 8/00 B22F 8/00
. .     Production of hydraulic cements from waste materials C04B 7/24-7/30 C04B 7/24-7/30
. .     Use of waste materials as fillers for mortars, concrete C04B 18/04-18/10 C04B 18/04-18/10
. .     Production of fertilisers from waste or refuse C05F C05F
. .     Recovery or working-up of waste materials C08J 11/00-11/28
C09K 11/01
C11B 11/00, 13/00-13/04
C14C 3/32
C21B 3/04
C25C 1/00
D01F 13/00-13/04
C08J 11/00-11/28
C09K 11/01
C11B 11/00, 13/00-13/04
C14C 3/32
C21B 3/04
C25C 1/00
D01F 13/00-13/04
. . .     Recovery of plastics materials from waste B29B 17/00 B29B 17/00
. . .     Disassembly of vehicles for recovery of salvageable parts B62D 67/00 B62D 67/00
. . .     Of polymers C08J 11/04-11/28 C08J 11/04-11/28
. . .     Production of liquid hydrocarbons from rubber waste C10G 1/10 C10G 1/10
. . .     Solid fuels derived from waste C10L 5/46, 5/48 C10L 5/46, 5/48
. . .     Obtaining metals from scrap C22B 7/00-7/04, 19/30, 25/06 C22B 7/00-7/04, 19/30, 25/06
. . .     Disintegrating fibrous materials for reuse D01G 11/00 D01G 11/00
. . .     Working-up waste paper to obtain cellulose D21C 5/02 D21C 5/02
. . .     Reclaiming salvageable components or material from electric discharge tubes or lamps H01J 9/50, 9/52 H01J 9/50, 9/52
. . .     Reclaiming serviceable parts of waste cells, batteries or accumulators H01M 6/52, 10/54 H01M 6/52, 10/54
.     Pollution control
. .     Carbon capture and storage B01D 53/14, 53/22, 53/62
B65G 5/00
C01B 31/20
E21B 41/00, 43/16
E21F 17/16
F25J 3/02
B01D 53/14, 53/22, 53/62
B65G 5/00
C01B 31/20
E21B 41/00, 43/16
E21F 17/16
F25J 3/02
. .     Air quality management
. . .     Treatment of waste gases B01D 53/00-53/96 B01D 53/00-53/96
. . . .     Exhaust apparatus for combustion engines with means for treating exhaust F01N 3/00-3/38
F01N 3/00-3/38
. . . .     Rendering exhaust gases innocuous B01D 53/92
F02B 75/10
B01D 53/92
F02B 75/10
. . . .     Removal of waste gases or dust in steel production C21C 5/38 C21C 5/38
. . . .     Combustion apparatus using recirculation of flue gases C10B 21/18
F23B 80/02
F23C 9/00
C10B 21/18
F23B 80/02
F23C 9/00
. . . .     Combustion of waste gases or noxious gases F23G 7/06 F23G 7/06
. . . .     Electrical control of exhaust gas treating apparatus F01N 9/00 F01N 9/00
. . .     Separating dispersed particles from gases or vapours B01D 45/00-51/00
B03C 3/00
B01D 45/00-51/00
B03C 3/00
. . . .     Dust removal from furnaces C21B 7/22
C21C 5/38
F27B 1/18
F27B 15/12
C21B 7/22
C21C 5/38
F27B 1/18
F27B 15/12
. . .     Use of additives in fuels or fires to reduce smoke or facilitate soot removal C10L 10/02, 10/06
F23J 7/00
C10L 10/02, 10/06
F23J 7/00
. . .     Arrangements of devices for treating smoke or fumes from combustion apparatus F23J 15/00 F23J 15/00
. . .     Dust-laying or dust-absorbing materials C09K 3/22 C09K 3/22
. . .     Pollution alarms G08B 21/12 G08B 21/12
. .     Control of water pollution  

. . .     Treating waste-water or sewage B63J 4/00
C02F
B63J 4/00
C02F
. . . .     To produce fertilisers C05F 7/00 C05F 7/00
. . .     Materials for treating liquid pollutants C09K 3/32 C09K 3/32
. . .     Removing pollutants from open water B63B 35/32
E02B 15/04
B63B 35/32
E02B 15/04
. . .     Plumbing installations for waste water E03C 1/12 E03C 1/12
. . .     Management of sewage C02F 1/00, 3/00, 9/00
E03F
C02F 1/00, 3/00, 9/00
E03F
. .     Means for preventing radioactive contamination in the event of reactor leakage G21C 13/10 G21C 13/10
AGRICULTURE / FORESTRY
.     Forestry techniques A01G 23/00 A01G 23/00
.     Alternative irrigation techniques A01G 25/00 A01G 25/00
.     Pesticide alternatives A01N 25/00-65/00 A01N 25/00-65/00
.     Soil improvement C09K 17/00
E02D 3/00
C09K 17/00
E02D 3/00
. .     Organic fertilisers derived from waste C05F C05F
ADMINISTRATIVE, REGULATORY OR DESIGN ASPECTS
.     Commuting, e.g., HOV, teleworking, etc. G06Q
G08G
G06Q
G08G
.     Carbon/emissions trading, e.g. pollution credits G06Q G06Q
.     Static structure design E04H 1/00 E04H 1/00
NUCLEAR POWER GENERATION
.     Nuclear engineering G21 G21
. .     Fusion reactors G21B G21B
. .     Nuclear (fission) reactors G21C G21C
. .     Nuclear power plant G21D G21D
.     Gas turbine power plants using heat source of nuclear origin F02C 1/05 F02C 1/05

 

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