drive innovation, protect intellectual assets, and create maximum value from their ideas by providing solutions that power the intellectual property lifecycle.
We showcase twelve technology areas and profile their innovation activity as measured through patent analysis.
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With the interest in green products and services growing, many companies are investing greater amounts of their research and development budgets into earth-friendly, clean, and renewable technology. To help you monitor and track this growing field, you can reference the following tables providing listings of Green Technology Manual Codes for more precise searching of enhanced patent data in DWPI.
This appendix is designed as a quick reference guide for all manual codes across the chemistry, life sciences and engineering technologies that relate to "green technologies" such as: "green" transportation, e.g. hybrid, fuel cell and other zero emissions vehicles; alternative power sources such as wind and solar power; bio-fuels and any other technologies that enable control of pollution or reduction of carbon footprints.
For full details please look up the relevant code in the applicable manual. Classes A-N are covered by the CPI manual and section P-X by the EPI manual.
Note – Items in italics are of green interest but may contain details not applicable to green technologies.
This category includes hybrid vehicles using a combustion engine and a flywheel energy storage or a combustion engine and an electric drive motor; electric vehicles and fuel cell vehicles (FCVs), e.g., using polymer electrolyte membrane (PEMFC); fuel cells using an offboard supply of hydrogen; and fuel cells using hydrogen from an onboard reformer, since these seem to be the most suitable fuel cells for vehicle applications.
| Description of Technology Area | Code |
|---|---|
| GREEN TRANSPORTATION | X21 |
| aircraft, muscle/pedal power | Q25-C01G |
| battery charging | X16-G02 |
| for electric vehicle | X21-B01A |
| for motor vehicle | |
| for railway train | X23-A03C |
| bicycle | Q19-A, X22-P01 |
| boat | Q24 |
| animal-drawn | Q24-E02G |
| canoe/kayak | Q24-P20 |
| electric propulsion | W06-B01C6 |
| muscle/pedal power | Q24-E01G |
| wind (sail) power | Q24-E01E, Q24-P22 |
| electric vehicle | Q19-P, X21-A01F |
| foot propelled vehicles | Q22-M |
| fuel cell vehicle | X21-A01J |
| hybrid vehicle | Q19-Q, X21-A01D, X22-P04 |
| hybrid-electric | Q19-Q01, X22-P04A |
| hybrid-mechanical | Q19-Q05, X22-P04E |
| parallel hybrid | X21-A01D1 |
| series hybrid | X21-A01D3 |
| regenerative braking | X13-F02, X21-A03C |
| Description of Technology Area | Code |
|---|---|
| GREEN POWER SOURCES AND ENERGY GENERATION | A12-W16 |
| battery | X16 |
| catalysts | N07-L03A |
| for electric vehicle | X21-B01A |
| electricity generation | |
| from biomass combustion | X15-E |
| from exercise machine | W04-X01A5 |
| X15-X | |
| from vehicle movement | X15-X |
| from waste fuel combustion | X15-E |
| flywheel energy storage | Q54-F |
| X21-B04 | |
| fuel cell | X16-C |
| L03-E04 | |
| catalysts | N07-L03A |
| for vehicle | X21-B01A |
| X22-F01 | |
| polymer details | A12-E06 |
| geothermal power | Q54-H |
| X15-G | |
| hydroelectric power | X11-B |
| dams | X11-B |
| generators | X11-B |
| mini/micro plant | X11-B05 |
| pumped storage | X11-B06 |
| turbines/water wheels | X11-B01 |
| muscle power | Q54-I |
| ocean thermal energy conversion | Q54-X |
| X15-C | |
| osmotic power | X11-B09 |
| X15-C | |
| profiting from waste heat | X15-H |
| IC engine exhaust heat recovery | Q51-J02F |
| IC engine waste heat recovery | X22-A17 |
| power generation from traffic flow | X15-T |
| sea power | X15-C |
| salinity gradient power | X11-B09 |
| X15-C | |
| solar power | Q54-H |
| U12-A02 | |
| X15-A | |
| for electric vehicle | X21-B04A |
| for motor vehicle | X22-F03 |
| photoelectric cells | A12-E11B |
| solar collector | X15-A01 |
| solar panels | U12-A02A5 |
| X15-A02B | |
| L03-E05B | |
| polymer details | A12-R02B |
| thermoelectric power | X15-D |
| tidal power | X15-C02 |
| vortex power | X11-B09 |
| X15-C | |
| water power | X11-B |
| X15-C | |
| water turbine | Q54-A |
| X11-B01 | |
| generator | X11-B |
| wave power | X15-C01 |
| wind power | Q54-G |
| X15-B | |
| for boat | Q24-E01E |
| for electric vehicle | X21-B04A |
| for motor vehicle | X22-F03 |
| Description of Technology Area | Code |
|---|---|
| biofuels | |
| produced from algae | B14-Y |
| C14-Y | |
| gaseous biofuels | H06-A04 |
| biogas | H06-A04 |
| ethane | H06-A04 |
| structural details | E10-J02D2 |
| hydrogen | H06-A03 |
| production by electrical means | E31-A02A |
| hydrogen generation-fuel cell | L03-E04I |
| X16-C17 | |
| hydrogen reformer-fuel cell | X16-C17 |
| hydrogen storage-fuel cell | X16-C15 |
| molecular decomposition of | V05-F08F |
| hydrocarbons (plasmatron) | |
| methane | H06-A04 |
| structural details | E10-J02D1 |
| produced by fermentation | D05-C14 |
| liquid biofuels | H06-B07 |
| alcohol | H06-B08 |
| bioalcohol | H06-B08 |
| biodiesel | H06-B04A |
| bioether | H06-B07 |
| butanol | H06-B08 |
| ethanol | H06-B08 |
| propanol | H06-B08 |
| vegetable oil | H06-B04A |
| solid biofuels | |
| from municipal/agricultural | D05-A04A |
| waste treatment | H09-F03 |
| Description of Technology Area | Code |
|---|---|
| biodegradability | A09-A07 |
| environmental vessel for collecting pollution from open water | Q24-P06 |
| green agro-chemicals (general) | C14-Y |
| green catalysts | N07-K01 |
| green chemistry (general) | E11-K03 |
| applications/compositions | E11-W |
| green pharmaceuticals (general) | B14-Y |
| oil spillage cleanup | H03-G |
| waste containment | |
| to prevent water contamination | D04-A05 |
| Description of Technology Area | Code |
|---|---|
| catalytic combustion | N07-L01A |
| desulphurisation of coal | H09-H02 |
| polymer application | A12-W11 |
| fuel vapour recovery for IC engine | Q51-H02 |
| electrical details | X22-A02E |
| using coagulants/ flocculants or polyelectrolytes | A12-W11E |
| other | A12-W11F |
| oil refinery | H05-L |
| polymer processing | A11-C07 |
| waste gas treatment | |
| catalyst details | N07-L01C |
| for engine exhaust | Q51-J02, E11-Q02A, N07-L01C1 |
| for motor vehicle exhaust | Q17-E09, X22-A03J |
| removal of N oxides | E31-H02 |
| catalytically | E31-H01 |
| removal of S hydride, H2S | E31-F01B |
| removal of S oxide SO2, SO3, SOX | E31-F01A |
| removal of sulphur compounds | E31-F01, N07-L02B |
| H2SO4, thiosulfate | E31-F01C |
| WATER/WASTE TREATMENT | E11-Q02, N07-L01 |
| industrial waste/effluent treatment | H09-F02, E11-Q02B |
| capacitor manufacture | |
| electrolytic | V01-B01G6E |
| non-electrolytic | V01-B04B8E |
| semiconductor manufacture | U11-C15Q |
| resistor manufacture | V01-A04R1 |
| municipal/agricultural waste treatment | H09-F03 |
| polymer waste treatment | A11-C07 |
| purification of non-gaseous hydrocarbons | N07-L01D |
| removal of materials/compounds | |
| removal of carbon compounds | N07-L02D |
| removal of catalyst poisons | E11-Q02C |
| removal of impurities in general | N07-L02 |
| removal of halogen compounds | N07-L02A |
| removal of metal compounds | N07-L02E |
| removal of nitrogen compounds | N07-L02C |
| removal of sulphur compounds | N07-L02B |
| removal of unwanted chemical reaction byproducts | E11-Q02C |
| sewage treatment | D04-A01J, D04-B10, D04-B11, D05-A04A |
| electrical systems | X25-H03 |
| incineration of sludge | D04-B10B |
| pyrolysis of sludge | D04-B10B |
| organic waste, town waste or sludge fermentation | D05-A04A |
| waste disposal processes/purification | N07-L01 |
| catalytic combustion of waste | N07-L01A |
| waste water treatment | N07-L01B, X25-H03 |
| waste water from paper manufacture | F05-A02C |
| sewage sludge removal/treatment | D04-B10 |
| electrical systems | X25-H03 |
| dewatering sludge | D04-B10A |
| water treatment | D04-A01J, N07-L01B |
| compositions | A11-W11J |
| removing coal slurry | D04-B03 |
| removing hydrocarbons | D04-B03 |
| removing impurities | D04-B |
| removing inorganic cyanides | D04-B07A |
| removing inorganic fluorine compounds and (thio)cyanates | D04-B07E |
| removing inorganic nitrogen compounds | D04-B07C |
| removing inorganic phosphorous | D04-B07B |
| removing inorganic sulphur compounds | D04-B07D |
| removing metals | D04-B05 |
| heavy metals | D04-B05A |
| neutralising chromium | D04-B05A |
| removing lead | D04-B05A |
| removing mineral oil | D04-B03 |
| removing natural products | D04-B04 |
| clarification of water containing fat | D04-B04 |
| removing organic materials | D04-B06 |
| halohydrocarbons | D04-B06E |
| organic dyes/brighteners | D04-B06B |
| phenolic compounds | D04-B06A |
| polymers/monomers | D04-B06D |
| surfactants | D04-B06C |
| removing radioactive materials | D04-B07, K07-B |
| Description of Technology Area | Code |
|---|---|
| electrical recycling equipment | X25-W04 |
| chemical extraction, recovery, purification | E11-Q01 |
| polymer scrap recovery/recycling | A11-C03 |
| recycling electrical components, equipment, and materials | V04-X01G |
| AV equipment | W03-G10C |
| battery materials | X16-M |
| capacitor materials | |
| electrolytic | V01-B01G6G |
| non-electrolytic | V01-B04B8G |
| copier/printer/fax/scanner parts | S06-K04C |
| discharge tube salvaging | V05-L07E6 |
| record carrier recycling and destroying | |
| general | T03-H02R |
| magnetic | T03-A01R |
| magneto-optical | T03-D01R |
| optical | T03-B01R |
| resistor materials | V01-A04R2 |
| TV receiver | W03-A19C |
| semiconductors | U11-H |
| recycling/recovery of glass | L01-B02 |
| recycling/recovery of paper | X25-T09G |
| in copier/printer/fax/scanner | S06-K04A |
| recycling/recovery of toner | S06-K04B |
| recycling waste water | D04-A06 |
| from semiconductor manufacture | L04-X02 |
| recovery of fibres | F03-E02 |
| recovery of ferrous metals | M24-A07 |
| recovery of non-ferrous metals | M25-E |
| recovery of organic products/waste (e.g. for fertilizer production) | D05-A04A |
| regeneration of pulp liquors during paper and fibre-board mfr. | F05-A02C |
| other | J09-C01A |
