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Patent (181490) 181490
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electricity (181622) 181622
generation (181495) 181495
apparatus for conversion between ac and ac, between ac and dc,or between dc and dc, and for use with mains or similar powersupply systems (181490) 181490
control or regulation thereof (181490) 181490
conversion of dc or ac input power into surge outputpower (181490) 181490
conversion or distribution of electric power (181490) 181490
control or regulation of electric motors, electric generatorsor dynamo-electric converters (45439) 45439
controlling transformers, reactors or choke coils (45439) 45439
general tagging of cross-sectional technologies spanning over several sections of the ipc (26076) 26076
general tagging of new technological developments (26076) 26076
technical subjects covered by former uspc cross-reference art collections [xracs] and digests (26076) 26076
technologies or applications for mitigation or adaptation againstclimate change (24867) 24867
circuit arrangements or systems for supplying or distributingelectric power (24490) 24490
systems for storing electric energy (24490) 24490
physics (24251) 24251
climate change mitigation technologies related to buildings,e.g. housing, house appliances or related end-userapplications (16452) 16452
transporting (15097) 15097
performing operations (15096) 15096
controlling (14518) 14518
regulating (14518) 14518
systems for regulating electric or magnetic variables (13188) 13188
electric techniques not otherwise provided for (12169) 12169
dc-dc power converters (12104) 12104
basic electric elements (11799) 11799
science & technology (11528) 11528
technology (11406) 11406
vehicles in general (11338) 11338
engineering (10502) 10502
electric equipment or propulsion of electrically-propelledvehicles (9878) 9878
electrodynamic brake systems for vehicles, in general (9878) 9878
magnetic suspension or levitation for vehicles (9878) 9878
basic electronic circuitry (9775) 9775
engineering, electrical & electronic (9740) 9740
switches (9456) 9456
voltage control (8593) 8593
emergency protective circuit arrangements (8358) 8358
capacitors (7363) 7363
pulse technique (6982) 6982
voltage (6853) 6853
converters (6712) 6712
inductors (6590) 6590
printed circuits (6408) 6408
casings or constructional details of electric apparatus (6331) 6331
manufacture of assemblages of electrical components (6331) 6331
electric heating (5551) 5551
electric lighting not otherwise provided for (5550) 5550
testing (5476) 5476
semiconductor devices (5243) 5243
measuring (5104) 5104
topology (5032) 5032
electric solid state devices not otherwise provided for (4907) 4907
lighting (4852) 4852
electric potential (4841) 4841
heating (4731) 4731
mechanical engineering (4731) 4731
transformers (4703) 4703
weapons (4678) 4678
blasting (4674) 4674
measuring electric variables (4520) 4520
measuring magnetic variables (4520) 4520
dc-dc converter (4207) 4207
reduction of greenhouse gas [ghg] emissions, related to energygeneration, transmission or distribution (3962) 3962
climate change mitigation technologies related totransportation (3913) 3913
magnets (3674) 3674
inductances (3659) 3659
selection of materials for their magnetic properties (3659) 3659
pulse width modulation (3650) 3650
inverters (3615) 3615
batteries (3357) 3357
electronics (3310) 3310
circuits (3090) 3090
switching converters (2998) 2998
control systems (2839) 2839
rectifiers (2823) 2823
dynamo-electric machines (2719) 2719
mathematical model (2644) 2644
exact sciences and technology (2500) 2500
climate change mitigation technologies in the production orprocessing of goods (2451) 2451
applied sciences (2446) 2446
direct current (2331) 2331
counting (2288) 2288
zero voltage switching (2288) 2288
electric converters (2283) 2283
computing (2266) 2266
calculating (2265) 2265
electric current converters (2193) 2193
power electronics (2108) 2108
electric digital data processing (2076) 2076
electrical engineering. electrical power engineering (2022) 2022
reactive power (1980) 1980
electric communication technique (1923) 1923
inductance (1915) 1915
bridge circuits (1815) 1815
switching (1785) 1785
processes or means, e.g. batteries, for the direct conversionof chemical into electrical energy (1767) 1767
education (1734) 1734
power supplies (1733) 1733
technical subjects covered by former uspc (1718) 1718
switching frequency (1703) 1703
display (1686) 1686
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Engineering & Comp. Sci. - Stacks (26) 26
Online Resources - Online (14) 14
Engineering & Comp. Sci. - Missing (3) 3
Aerospace - Stacks (1) 1
Collection Dvlpm't (Acquisitions) - Closed Orders (1) 1
Collection Dvlpm't (Acquisitions) - Vendor file (1) 1
UTL at Downsview - May be requested (1) 1
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English (207587) 207587
Chinese (38623) 38623
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Japanese (11651) 11651
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Russian (4199) 4199
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