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after-treatment of single crystals or a homogeneouspolycrystalline material with defined structure (212644) 212644
apparatus therefor (212644) 212644
chemistry (212644) 212644
crystal growth (212644) 212644
metallurgy (212644) 212644
production of a homogeneous polycrystalline material withdefined structure (212644) 212644
refining by zone-melting of material (212644) 212644
single crystals or homogeneous polycrystalline material withdefined structure (212644) 212644
single-crystal-growth (212644) 212644
unidirectional solidification of eutectic material orunidirectional demixing of eutectoid material (212644) 212644
electricity (107466) 107466
basic electric elements (105333) 105333
electric solid state devices not otherwise provided for (96736) 96736
semiconductor devices (96736) 96736
general tagging of cross-sectional technologies spanning over several sections of the ipc (46025) 46025
general tagging of new technological developments (46025) 46025
technical subjects covered by former uspc cross-reference art collections [xracs] and digests (46025) 46025
chemical surface treatment (41057) 41057
coating by vacuum evaporation, by sputtering, by ion implantationor by chemical vapour deposition, in general (41057) 41057
coating material with metallic material (41057) 41057
coating metallic material (41057) 41057
diffusion treatment of metallic material (41057) 41057
inhibiting corrosion of metallic material or incrustation ingeneral (41057) 41057
coating by vacuum evaporation, by sputtering, by ionimplantation or by chemical vapour deposition, in general (40056) 40056
surface treatment of metallic material by diffusion into thesurface, by chemical conversion or substitution (40056) 40056
technical subjects covered by former uspc (38058) 38058
performing operations (32735) 32735
transporting (32735) 32735
inorganic chemistry (28407) 28407
technical subjects covered by former us classification (25265) 25265
compounds thereof (19436) 19436
non-metallic elements (19388) 19388
physics (18581) 18581
technical subjects covered by former uspc cross-reference artcollections [xracs] and digests (18539) 18539
technologies or applications for mitigation or adaptation againstclimate change (10331) 10331
physical or chemical processes or apparatus in general (9806) 9806
nanotechnology (8844) 8844
compounds containing metals not covered by subclassesc01d or c01f (8615) 8615
manufacture or treatment of nanostructures (8169) 8169
measurement or analysis of nanostructures (8169) 8169
specific uses or applications of nanostructures (8169) 8169
artificial stone (8002) 8002
cements (8002) 8002
ceramics (8002) 8002
compositions thereof, e.g. mortars, concrete or like buildingmaterials (8002) 8002
concrete (8002) 8002
lime, magnesia (8002) 8002
refractories (8002) 8002
slag (8002) 8002
treatment of natural stone (8002) 8002
measuring (7622) 7622
testing (7622) 7622
optics (7574) 7574
chemical or physical processes, e.g. catalysis or colloidchemistry (7293) 7293
their relevant apparatus (7293) 7293
reduction of greenhouse gas [ghg] emissions, related to energygeneration, transmission or distribution (6880) 6880
devices using stimulated emission (6472) 6472
blasting (5955) 5955
heating (5955) 5955
lighting (5955) 5955
mechanical engineering (5955) 5955
weapons (5955) 5955
climate change mitigation technologies in the production orprocessing of goods (5863) 5863
ferrous or non-ferrous alloys (5744) 5744
treatment of alloys or non-ferrous metals (5744) 5744
glass (5270) 5270
mineral or slag wool (5270) 5270
adhesives (5100) 5100
dyes (5100) 5100
miscellaneous applications of materials (5100) 5100
miscellaneous compositions (5100) 5100
natural resins (5100) 5100
paints (5100) 5100
polishes (5100) 5100
casting (4919) 4919
powder metallurgy (4919) 4919
cables (4657) 4657
conductors (4657) 4657
insulators (4657) 4657
selection of materials for their conductive, insulating ordielectric properties (4657) 4657
indexing scheme relating to structural and physical aspects ofsolid inorganic compounds (4512) 4512
optical elements, systems, or apparatus (4466) 4466
alloys (4330) 4330
organic chemistry (4213) 4213
investigating or analysing materials by determining theirchemical or physical properties (4121) 4121
devices or arrangements, the optical operation of which ismodified by changing the optical properties of the medium of thedevices or arrangements for the control of the intensity,colour, phase, polarisation or direction of light, e.g.switching, gating, modulating or demodulating (4097) 4097
frequency-changing (4097) 4097
non-linear optics (4097) 4097
optical analogue/digital converters (4097) 4097
optical logic elements (4097) 4097
techniques or procedures for the operation thereof (4097) 4097
materials for miscellaneous applications, not provided forelsewhere (4055) 4055
electric techniques not otherwise provided for (3795) 3795
manufacture, shaping, or supplementary processes (3782) 3782
machine tools (3672) 3672
metal-working not otherwise provided for (3672) 3672
electric discharge tubes or discharge lamps (3356) 3356
human necessities (3027) 3027
inductances (2943) 2943
magnets (2943) 2943
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English (185270) 185270
French (31433) 31433
Chinese (29973) 29973
German (26528) 26528
Japanese (10274) 10274
Korean (8963) 8963
Russian (2879) 2879
Spanish (924) 924
Italian (604) 604
Dutch (534) 534
Ukrainian (470) 470
Swedish (437) 437
Portuguese (379) 379
Danish (359) 359
Polish (277) 277
Finnish (273) 273
Norwegian (261) 261
Romanian (200) 200
Czech (101) 101
Hebrew (39) 39
Hungarian (27) 27
Bulgarian (21) 21
Slovak (21) 21
Moldavian (18) 18
Slovenian (18) 18
Turkish (13) 13
Greek (9) 9
Indonesian (9) 9
Estonian (8) 8
Icelandic (8) 8
Latvian (8) 8
Lithuanian (6) 6
Arabic (5) 5
Croatian (5) 5
Serbian (5) 5
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