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Patent (339376) 339376
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chemistry (338364) 338364
metallurgy (337916) 337916
fuels (333816) 333816
lubricants (333742) 333742
peat (333730) 333730
petroleum, gas or coke industries (333718) 333718
technical gases containing carbon monoxide (333718) 333718
mineral waxes (333529) 333529
cracking hydrocarbon oils (333528) 333528
production of liquid hydrocarbon mixtures, e.g. by destructivehydrogenation, oligomerisation, polymerisation (333528) 333528
recovery of hydrocarbon oils from oil-shale, oil-sand, orgases (333528) 333528
refining mixtures mainly consisting of hydrocarbons (333528) 333528
reforming of naphtha (333528) 333528
performing operations (162194) 162194
transporting (162194) 162194
physical or chemical processes or apparatus in general (152622) 152622
chemical or physical processes, e.g. catalysis or colloidchemistry (124526) 124526
their relevant apparatus (124526) 124526
organic chemistry (68986) 68986
acyclic or carbocyclic compounds (65385) 65385
general tagging of cross-sectional technologies spanning over several sections of the ipc (55247) 55247
general tagging of new technological developments (55247) 55247
technical subjects covered by former uspc cross-reference art collections [xracs] and digests (55247) 55247
technologies or applications for mitigation or adaptation againstclimate change (42904) 42904
climate change mitigation technologies in the production orprocessing of goods (37159) 37159
separation (36737) 36737
natural gas (30837) 30837
liquefied petroleum gas (30788) 30788
adding materials to fuels or fires to reduce smoke orundesirable deposits or to facilitate soot removal (30787) 30787
firelighters (30787) 30787
fuels not otherwise provided for (30787) 30787
synthetic natural gas obtained by processes not covered bysubclasses c10g, c10k (30787) 30787
inorganic chemistry (28779) 28779
compounds thereof (25953) 25953
non-metallic elements (25739) 25739
mechanical engineering (19651) 19651
heating (19637) 19637
weapons (19637) 19637
lighting (19629) 19629
blasting (19628) 19628
apparatus therefor (16130) 16130
technical subjects covered by former uspc (14501) 14501
general methods of organic chemistry (14092) 14092
destructive distillation of carbonageous materials forproduction of gas, coke, tar, or similar materials (13649) 13649
compositions based thereon (13176) 13176
organic macromolecular compounds (13176) 13176
their preparation or chemical working-up (13176) 13176
technical subjects covered by former uspc cross-reference artcollections [xracs] and digests (11888) 11888
reduction of greenhouse gas [ghg] emissions, related to energygeneration, transmission or distribution (10380) 10380
lubricating compositions (9085) 9085
use of chemical substances either alone or as lubricatingingredients in a lubricating composition (9085) 9085
adhesives (8750) 8750
dyes (8746) 8746
paints (8743) 8743
miscellaneous applications of materials (8736) 8736
miscellaneous compositions (8736) 8736
natural resins (8736) 8736
polishes (8736) 8736
candles (8023) 8023
detergents (8017) 8017
animal and vegetable oils, fats, fatty substances and waxes (8015) 8015
fatty acids therefrom (8015) 8015
carburetting air or other gases (7601) 7601
production of producer gas, water-gas, synthesis gas fromsolid carbonaceous material, or mixtures containing these gases (7601) 7601
fixed constructions (7379) 7379
mining (6994) 6994
earth drilling (6889) 6889
earth drilling, e.g. deep drilling (6780) 6780
obtaining oil, gas, water, soluble or meltable materials or aslurry of minerals from wells (6780) 6780
treatment of water, waste water, sewage, or sludge (6481) 6481
materials for miscellaneous applications, not provided forelsewhere (5988) 5988
purifying or modifying the chemical composition of combustiblegases containing carbon monoxide (5787) 5787
physics (5672) 5672
disposal of solid waste (5049) 5049
reclamation of contamined soil soil (5049) 5049
electricity (4798) 4798
after-treatment not covered by subclasses c08b, c08c, c08f,c08g (4708) 4708
general processes of compounding (4708) 4708
working-up (4708) 4708
combustion apparatus (4394) 4394
combustion processes (4394) 4394
pyroligneous acid (4342) 4342
working-up pitch, asphalt, bitumen, tar (4342) 4342
climate change mitigation technologies related to wastewatertreatment or waste management (4000) 4000
biochemistry (3977) 3977
combustion engines (3976) 3976
hot-gas or combustion-product engine plants (3976) 3976
microbiology (3970) 3970
human necessities (3944) 3944
wine (3941) 3941
enzymology (3935) 3935
vinegar (3935) 3935
beer (3934) 3934
mutation or genetic engineering (3934) 3934
spirits (3934) 3934
heat exchange in general (3900) 3900
macromolecular compounds obtained by reactions only involvingcarbon-to-carbon unsaturated bonds (3726) 3726
basic electric elements (3611) 3611
glass (3403) 3403
mineral or slag wool (3395) 3395
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English (277940) 277940
French (69341) 69341
Chinese (42495) 42495
German (39663) 39663
Russian (9627) 9627
Spanish (8971) 8971
Korean (7106) 7106
Portuguese (5931) 5931
Japanese (3789) 3789
Norwegian (2921) 2921
Dutch (2692) 2692
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Danish (1769) 1769
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Polish (1014) 1014
Romanian (381) 381
Ukrainian (367) 367
Hungarian (240) 240
Arabic (233) 233
Turkish (232) 232
Czech (209) 209
Indonesian (181) 181
Bulgarian (91) 91
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Lithuanian (35) 35
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