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Patent (215689) 215689
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chemistry (216323) 216323
metallurgy (215818) 215818
crystal growth (215800) 215800
after-treatment of single crystals or a homogeneouspolycrystalline material with defined structure (215689) 215689
apparatus therefor (215689) 215689
production of a homogeneous polycrystalline material withdefined structure (215689) 215689
refining by zone-melting of material (215689) 215689
single crystals or homogeneous polycrystalline material withdefined structure (215689) 215689
single-crystal-growth (215689) 215689
unidirectional solidification of eutectic material orunidirectional demixing of eutectoid material (215689) 215689
electricity (107100) 107100
basic electric elements (104929) 104929
electric solid state devices not otherwise provided for (96430) 96430
semiconductor devices (96430) 96430
chemical surface treatment (40970) 40970
coating by vacuum evaporation, by sputtering, by ion implantationor by chemical vapour deposition, in general (40970) 40970
coating material with metallic material (40970) 40970
coating metallic material (40970) 40970
diffusion treatment of metallic material (40970) 40970
inhibiting corrosion of metallic material or incrustation ingeneral (40970) 40970
general tagging of cross-sectional technologies spanning over several sections of the ipc (40060) 40060
general tagging of new technological developments (40060) 40060
technical subjects covered by former uspc cross-reference art collections [xracs] and digests (40060) 40060
coating by vacuum evaporation, by sputtering, by ionimplantation or by chemical vapour deposition, in general (40007) 40007
surface treatment of metallic material by diffusion into thesurface, by chemical conversion or substitution (40007) 40007
technical subjects covered by former uspc (34577) 34577
performing operations (31731) 31731
transporting (31731) 31731
inorganic chemistry (27989) 27989
technical subjects covered by former us classification (22944) 22944
physics (19422) 19422
compounds thereof (19070) 19070
non-metallic elements (19020) 19020
technical subjects covered by former uspc cross-reference artcollections [xracs] and digests (16953) 16953
physical or chemical processes or apparatus in general (9614) 9614
compounds containing metals not covered by subclassesc01d or c01f (8446) 8446
nanotechnology (8146) 8146
ceramics (8079) 8079
refractories (8000) 8000
cements (7997) 7997
slag (7996) 7996
artificial stone (7995) 7995
compositions thereof, e.g. mortars, concrete or like buildingmaterials (7995) 7995
concrete (7995) 7995
lime, magnesia (7995) 7995
treatment of natural stone (7995) 7995
testing (7588) 7588
measuring (7584) 7584
optics (7583) 7583
technologies or applications for mitigation or adaptation againstclimate change (7435) 7435
manufacture or treatment of nanostructures (7313) 7313
measurement or analysis of nanostructures (7313) 7313
specific uses or applications of nanostructures (7313) 7313
chemical or physical processes, e.g. catalysis or colloidchemistry (7166) 7166
their relevant apparatus (7166) 7166
devices using stimulated emission (6416) 6416
mechanical engineering (5893) 5893
heating (5859) 5859
blasting (5828) 5828
lighting (5828) 5828
weapons (5828) 5828
ferrous or non-ferrous alloys (5724) 5724
treatment of alloys or non-ferrous metals (5724) 5724
alloys (5381) 5381
glass (5205) 5205
mineral or slag wool (5186) 5186
climate change mitigation technologies in the production orprocessing of goods (5133) 5133
adhesives (4900) 4900
dyes (4900) 4900
miscellaneous applications of materials (4900) 4900
miscellaneous compositions (4900) 4900
natural resins (4900) 4900
paints (4900) 4900
polishes (4900) 4900
casting (4879) 4879
powder metallurgy (4776) 4776
cables (4542) 4542
conductors (4542) 4542
insulators (4542) 4542
selection of materials for their conductive, insulating ordielectric properties (4542) 4542
reduction of greenhouse gas [ghg] emissions, related to energygeneration, transmission or distribution (4485) 4485
optical elements, systems, or apparatus (4412) 4412
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 (4111) 4111
frequency-changing (4111) 4111
non-linear optics (4111) 4111
optical analogue/digital converters (4111) 4111
optical logic elements (4111) 4111
techniques or procedures for the operation thereof (4111) 4111
investigating or analysing materials by determining theirchemical or physical properties (4069) 4069
materials for miscellaneous applications, not provided forelsewhere (3931) 3931
manufacture, shaping, or supplementary processes (3827) 3827
electric techniques not otherwise provided for (3688) 3688
organic chemistry (3630) 3630
machine tools (3531) 3531
metal-working not otherwise provided for (3530) 3530
indexing scheme relating to structural and physical aspects ofsolid inorganic compounds (3470) 3470
electric discharge tubes or discharge lamps (3206) 3206
magnets (2936) 2936
inductances (2935) 2935
selection of materials for their magnetic properties (2935) 2935
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English (191595) 191595
Chinese (32650) 32650
French (31487) 31487
German (26624) 26624
Japanese (11166) 11166
Korean (9529) 9529
Russian (2879) 2879
Spanish (878) 878
Italian (602) 602
Dutch (542) 542
Ukrainian (472) 472
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Portuguese (374) 374
Danish (354) 354
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