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after-treatment of single crystals or a homogeneouspolycrystalline material with defined structure (212875) 212875
apparatus therefor (212875) 212875
chemistry (212875) 212875
crystal growth (212875) 212875
metallurgy (212875) 212875
production of a homogeneous polycrystalline material withdefined structure (212875) 212875
refining by zone-melting of material (212875) 212875
single crystals or homogeneous polycrystalline material withdefined structure (212875) 212875
single-crystal-growth (212875) 212875
unidirectional solidification of eutectic material orunidirectional demixing of eutectoid material (212875) 212875
electricity (107314) 107314
basic electric elements (105193) 105193
electric solid state devices not otherwise provided for (96618) 96618
semiconductor devices (96618) 96618
general tagging of cross-sectional technologies spanning over several sections of the ipc (45759) 45759
general tagging of new technological developments (45759) 45759
technical subjects covered by former uspc cross-reference art collections [xracs] and digests (45759) 45759
chemical surface treatment (40973) 40973
coating by vacuum evaporation, by sputtering, by ion implantationor by chemical vapour deposition, in general (40973) 40973
coating material with metallic material (40973) 40973
coating metallic material (40973) 40973
diffusion treatment of metallic material (40973) 40973
inhibiting corrosion of metallic material or incrustation ingeneral (40973) 40973
coating by vacuum evaporation, by sputtering, by ionimplantation or by chemical vapour deposition, in general (39970) 39970
surface treatment of metallic material by diffusion into thesurface, by chemical conversion or substitution (39970) 39970
technical subjects covered by former uspc (37854) 37854
performing operations (32616) 32616
transporting (32616) 32616
inorganic chemistry (28343) 28343
technical subjects covered by former us classification (25131) 25131
compounds thereof (19396) 19396
non-metallic elements (19348) 19348
physics (18579) 18579
technical subjects covered by former uspc cross-reference artcollections [xracs] and digests (18461) 18461
technologies or applications for mitigation or adaptation againstclimate change (10254) 10254
physical or chemical processes or apparatus in general (9778) 9778
nanotechnology (8753) 8753
compounds containing metals not covered by subclassesc01d or c01f (8599) 8599
manufacture or treatment of nanostructures (8075) 8075
measurement or analysis of nanostructures (8075) 8075
specific uses or applications of nanostructures (8075) 8075
artificial stone (7995) 7995
cements (7995) 7995
ceramics (7995) 7995
compositions thereof, e.g. mortars, concrete or like buildingmaterials (7995) 7995
concrete (7995) 7995
lime, magnesia (7995) 7995
refractories (7995) 7995
slag (7995) 7995
treatment of natural stone (7995) 7995
measuring (7627) 7627
testing (7627) 7627
optics (7571) 7571
chemical or physical processes, e.g. catalysis or colloidchemistry (7250) 7250
their relevant apparatus (7250) 7250
reduction of greenhouse gas [ghg] emissions, related to energygeneration, transmission or distribution (6836) 6836
devices using stimulated emission (6458) 6458
blasting (5924) 5924
heating (5924) 5924
lighting (5924) 5924
mechanical engineering (5924) 5924
weapons (5924) 5924
climate change mitigation technologies in the production orprocessing of goods (5809) 5809
ferrous or non-ferrous alloys (5729) 5729
treatment of alloys or non-ferrous metals (5729) 5729
glass (5260) 5260
mineral or slag wool (5260) 5260
adhesives (5081) 5081
dyes (5081) 5081
miscellaneous applications of materials (5081) 5081
miscellaneous compositions (5081) 5081
natural resins (5081) 5081
paints (5081) 5081
polishes (5081) 5081
casting (4907) 4907
powder metallurgy (4907) 4907
cables (4654) 4654
conductors (4654) 4654
insulators (4654) 4654
selection of materials for their conductive, insulating ordielectric properties (4654) 4654
optical elements, systems, or apparatus (4462) 4462
indexing scheme relating to structural and physical aspects ofsolid inorganic compounds (4372) 4372
alloys (4310) 4310
organic chemistry (4129) 4129
investigating or analysing materials by determining theirchemical or physical properties (4123) 4123
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 (4096) 4096
frequency-changing (4096) 4096
non-linear optics (4096) 4096
optical analogue/digital converters (4096) 4096
optical logic elements (4096) 4096
techniques or procedures for the operation thereof (4096) 4096
materials for miscellaneous applications, not provided forelsewhere (4036) 4036
manufacture, shaping, or supplementary processes (3787) 3787
electric techniques not otherwise provided for (3784) 3784
machine tools (3645) 3645
metal-working not otherwise provided for (3645) 3645
electric discharge tubes or discharge lamps (3320) 3320
human necessities (2968) 2968
inductances (2939) 2939
magnets (2939) 2939
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English (185383) 185383
French (31432) 31432
Chinese (30153) 30153
German (26540) 26540
Japanese (10361) 10361
Korean (8882) 8882
Russian (2887) 2887
Spanish (913) 913
Italian (604) 604
Dutch (534) 534
Ukrainian (472) 472
Swedish (436) 436
Portuguese (380) 380
Danish (359) 359
Polish (278) 278
Finnish (273) 273
Norwegian (261) 261
Romanian (201) 201
Czech (101) 101
Hebrew (38) 38
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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