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chemistry (332840) 332840
fuels (332806) 332806
metallurgy (332796) 332796
lubricants (332789) 332789
cracking hydrocarbon oils (332788) 332788
mineral waxes (332788) 332788
peat (332788) 332788
petroleum, gas or coke industries (332788) 332788
production of liquid hydrocarbon mixtures, e.g. by destructivehydrogenation, oligomerisation, polymerisation (332788) 332788
recovery of hydrocarbon oils from oil-shale, oil-sand, orgases (332788) 332788
refining mixtures mainly consisting of hydrocarbons (332788) 332788
reforming of naphtha (332788) 332788
technical gases containing carbon monoxide (332788) 332788
performing operations (159870) 159870
transporting (159870) 159870
physical or chemical processes or apparatus in general (151798) 151798
chemical or physical processes, e.g. catalysis or colloidchemistry (124090) 124090
their relevant apparatus (124090) 124090
organic chemistry (68622) 68622
acyclic or carbocyclic compounds (65224) 65224
general tagging of cross-sectional technologies spanning over several sections of the ipc (54971) 54971
general tagging of new technological developments (54971) 54971
technical subjects covered by former uspc cross-reference art collections [xracs] and digests (54971) 54971
technologies or applications for mitigation or adaptation againstclimate change (43175) 43175
climate change mitigation technologies in the production orprocessing of goods (37399) 37399
separation (36507) 36507
natural gas (30710) 30710
adding materials to fuels or fires to reduce smoke orundesirable deposits or to facilitate soot removal (30698) 30698
firelighters (30698) 30698
fuels not otherwise provided for (30698) 30698
liquefied petroleum gas (30698) 30698
synthetic natural gas obtained by processes not covered bysubclasses c10g, c10k (30698) 30698
inorganic chemistry (28381) 28381
compounds thereof (25777) 25777
non-metallic elements (25567) 25567
blasting (19255) 19255
heating (19255) 19255
lighting (19255) 19255
mechanical engineering (19255) 19255
weapons (19255) 19255
apparatus therefor (16054) 16054
general methods of organic chemistry (14061) 14061
technical subjects covered by former uspc (13982) 13982
destructive distillation of carbonageous materials forproduction of gas, coke, tar, or similar materials (13616) 13616
compositions based thereon (12474) 12474
organic macromolecular compounds (12474) 12474
their preparation or chemical working-up (12474) 12474
technical subjects covered by former uspc cross-reference artcollections [xracs] and digests (11684) 11684
reduction of greenhouse gas [ghg] emissions, related to energygeneration, transmission or distribution (10436) 10436
lubricating compositions (8998) 8998
use of chemical substances either alone or as lubricatingingredients in a lubricating composition (8998) 8998
carburetting air or other gases (7590) 7590
production of producer gas, water-gas, synthesis gas fromsolid carbonaceous material, or mixtures containing these gases (7590) 7590
treatment of water, waste water, sewage, or sludge (6329) 6329
adhesives (6191) 6191
dyes (6191) 6191
miscellaneous applications of materials (6191) 6191
miscellaneous compositions (6191) 6191
natural resins (6191) 6191
paints (6191) 6191
polishes (6191) 6191
detergents (5963) 5963
animal and vegetable oils, fats, fatty substances and waxes (5962) 5962
candles (5962) 5962
fatty acids therefrom (5962) 5962
purifying or modifying the chemical composition of combustiblegases containing carbon monoxide (5844) 5844
physics (5029) 5029
disposal of solid waste (5025) 5025
reclamation of contamined soil soil (5025) 5025
fixed constructions (4569) 4569
after-treatment not covered by subclasses c08b, c08c, c08f,c08g (4422) 4422
general processes of compounding (4422) 4422
working-up (4422) 4422
combustion apparatus (4390) 4390
combustion processes (4390) 4390
pyroligneous acid (4303) 4303
working-up pitch, asphalt, bitumen, tar (4303) 4303
mining (4246) 4246
earth drilling (4243) 4243
earth drilling, e.g. deep drilling (4134) 4134
obtaining oil, gas, water, soluble or meltable materials or aslurry of minerals from wells (4134) 4134
materials for miscellaneous applications, not provided forelsewhere (4092) 4092
climate change mitigation technologies related to wastewatertreatment or waste management (4059) 4059
combustion engines (3964) 3964
hot-gas or combustion-product engine plants (3964) 3964
electricity (3931) 3931
microbiology (3921) 3921
beer (3919) 3919
biochemistry (3919) 3919
enzymology (3919) 3919
mutation or genetic engineering (3919) 3919
spirits (3919) 3919
vinegar (3919) 3919
wine (3919) 3919
heat exchange in general (3746) 3746
macromolecular compounds obtained by reactions only involvingcarbon-to-carbon unsaturated bonds (3589) 3589
human necessities (3452) 3452
fats, oils or fatty acids by chemical modification of fats,oils, or fatty acids obtained therefrom (3132) 3132
fatty acids from fats, oils or waxes (3132) 3132
indexing scheme associated with subclass c10m relating to lubricatingcompositions (3093) 3093
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English (268168) 268168
French (68163) 68163
Chinese (40990) 40990
German (38966) 38966
Russian (9485) 9485
Spanish (8862) 8862
Korean (6917) 6917
Portuguese (5838) 5838
Japanese (3637) 3637
Norwegian (2853) 2853
Dutch (2678) 2678
Italian (1866) 1866
Danish (1730) 1730
Finnish (1446) 1446
Swedish (1375) 1375
Polish (1008) 1008
Romanian (380) 380
Ukrainian (333) 333
Hungarian (236) 236
Arabic (231) 231
Turkish (227) 227
Czech (203) 203
Indonesian (178) 178
Bulgarian (87) 87
Slovak (83) 83
Croatian (65) 65
Estonian (64) 64
Hebrew (62) 62
Slovenian (62) 62
Greek (57) 57
Serbian (54) 54
Lithuanian (34) 34
Icelandic (20) 20
Latvian (11) 11
Bosnian (1) 1
Moldavian (1) 1
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