What follows are the subclasses from one class of the Manual of Classification for US patents. As you scroll through the list and encounter a class/subclass of interest, you can jump back to the top and retrieve patent titles by entering the class/subclass in the box below.
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363-131 121-55A 14-.5
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classes of the form Dxx.yy) are not retreivable.
Class Number: 505
Class Title: SUPERCONDUCTOR TECHNOLOGY: APPARATUS, MATERIAL, PROCESS
Subclass Subclass
Number Title
1 MATERIAL, PROCESS, APPARATUS, FUNCTIONING ABOVE 30 K
* ******************************
* CROSS-REFERENCE ART COLLECTIONS
* ******************************
* A. Involving High Temperature Material (Tc above 30 degree K)
700 HIGH Tc (ABOVE 30 DEGREE K) SUPERCONDUCTING DEVICE, ARTICLE OR
STRUCTURED STOCK
701 .Coated or thin film device (i.e., active or passive)
702 ..Josephson junction present
703 ..Microelectronic device with superconducting conduction line
704 .Wire, fiber or cable
705 ..Magnetic coil
706 .Contact pads or leads bonded to superconductor
725 PROCESS OF MAKING OR TREATING HIGH Tc (ABOVE 30 DEGREE K)
SUPERCONDUCTING SHAPED MATERIAL, ARTICLE OR DEVICE
726 .Measuring or testing of superconducting property
727 .Using magnetic field
728 .Etching
729 .Growing single crystal (e.g., epitaxy, bulk)
730 .Vacuum treating or coating
731 ..Sputter coating
732 ..Evaporative coating with superconducting material
733 .Rapid solidification (e.g., quenching, gas-atomizing,
melt-spinning, roller-quenching)
734 .From organometallic precursors (e.g., acetylacetonates)
735 ..By sol-gel process
736 .From free metal precursors
737 .From inorganic salt precursors (e.g., nitrates)
738 ..By precipitating
739 .Molding, coating, shaping or casting of superconducting
material
740 ..To form wire or fiber
741 ..Coating or casting onto a substrate (e.g., screen printing,
tape casting)
742 .Annealing
775 HIGH Tc (ABOVE 30 DEGREE K) SUPERCONDUCTING MATERIAL
776 .Containing transition metal oxide with rare earth or alkaline
earth
777 ..Lanthanum (La)-(e.g., La2Cu04)
778 ...Alkaline earth (i.e., Ca,Sr,Ba,Ra)- e.g., La(2-x)Ba(x)Cu04
779 ..Other rare earth (i.e.,
Sc,Y,Ce,Pr,Nd,Pm,Sm,Eu,Gd,Tb,Dy,Ho,Er,Tm,Yb,Lu) and alkaline
earth (i.e., Ca,Sr,Ba,Ra)
780 ...Yttrium(Y) and barium(Ba)-(e.g., YBa2Cu307)
781 ....Noble metal (i.e., Ag,Au,Os,Ir,Pt.Ru,Rh,Pd) or chromium(Cr),
manganese(Mn), iron(Fe), cobalt(Co), or nickel(Ni)- e.g.,
YBa2Cu(3-x)Fe(x)0(y)
782 ..Bismuth(Bi)-(e.g., BiCaSrCu0)
783 ..Thallium(Tl)-(e.g., Tl2CaBaCu308)
784 .Bismuth(Bi)-(e.g., BaKBi0)
785 .Composition containing superconducting material and diverse
nonsuperconducting materiall
* B. Involving Low Temperature Superconductors (Tc at or below 30
degree K)
800 MATERIAL, PER SE, PROCESS OF MAKING SAME
801 .Composition: (Classes 75, 252, 501)
802 ..Organic
803 ..Magnetic
804 ..Amorphous alloy
805 ..Alloy or metallic: (Class 420,420/901)
806 ...Niobium base (Nb)
807 ..Powder: (Class 75)
808 ..Liquid crystal: (Class 252)
809 ..Ceramic: (Class 501)
810 .Compound: (Class 423)
811 ..Organic: (Classes 520-570)
812 .Stock: (Class 428, 428/930)
813 ..Wire, tape, or film
814 ..Treated metal: (Class 148/400+)
815 .Process of making, per se
816 ..Sputtering, including coating, forming, or etching (Class
204/192.24)
817 ...Forming Josephson element
818 ..Coating: (Classes 204, 427/62)
819 ...Vapor deposition
820 ...And etching
821 ...Wire
822 ..Shaping: (Classes 148, 264)
823 ..Powder metallurgy: (Class 419)
824 ..Battery, thermo or photo-electric: (Class 136)
825 APPARATUS, PER SE, DEVICE, PER SE, OR PROCESS OF MAKING OR
OPERATING SAME
826 .Coating: (Class 118)
827 .Code converter: (Class 340)
828 .Modulator: (Class 332), demodulator, or detector: (Class 329)
829 .Electrical computer or data processing system (Class 364)
830 .Electrical pulse counter, pulse divider or shift register:
(Class 377)
831 .Static information storage system or device: (Class 365,
365/160)
832 ..Josephson junction type: (Class 365/162)
833 ..Thin film type: (Class 365/161)
834 ...Plural (e.g., memory matrix, etc.): (Class 365/161)
835 ....Content addressed (i.e., associative memory type): (Class
365/49, 161)
836 ....Location addressed (i.e., word organized memory type (Class
365/161)
837 ....Random access (i.e., bit organized memory type): (Class
365/161)
838 ..Plural (e.g., memory matrix, etc.): (Class 365/160)
839 ...Content addressed (i.e., associative memory type): (Class
365/160)
840 ...Location addressed (i.e., word organized memory type): (Class
365/160)
841 ...Random access (i.e., bit organized memory type): (Class
365/160)
842 .Measuring and testing: (Classes 73, 324, 356, and 374)
843 ..Electrical: (Class 324)
844 ...Nuclear magnetic resonance (Nmr) system or device: (Class
324))
845 ...Magnetometer: (Class 324/248)
846 ....Using superconductive quantum interference device (i.e.,
SQUID): (Class 324/248)
847 ..Thermal: (Class 374)
848 .Radiant energy application: (Class 250)
849 ..Infrared responsive electric signalling: (Class 250/338+)
850 .Protective circuit: (Class 361/19)
851 .Control circuit for electromagnetic device: (Class 361/141)
852 .Electric motor control: (Class 318)
853 .Oscillator: (Class 331)
854 ..With solid state active element: (Class 331/107S)
855 .Amplifier: (Class 330)
856 .Electrical transmission or interconnection system: (Class 307)
857 ..Nonlinear solid state device system or circuit: (Class
307/200+)
858 ...Digital logic: (Class 307/476)
859 ....Function of AND, OR, NAND, NOR or NOT: (Class 307/462)
860 ...Gating (i.e., switching) circuit: (Class 307/245)
861 ....With Josephson junction: (Class 307/245)
862 ....With thin film device: (Class 307/245)
863 ...Stable state circuit for signal shaping, converting, or
generating: (Class 307/277)
864 ....With Josephson junction: (Class 307/277)
865 ...With Josephson junction: (Class 307/306)
866 .Wave transmission line, network, waveguide, or microwave
storage device: (Class 333/99S)
867 .Electric power conversion system: (Class 363)
868 ..Current conversion: (Class 363/14)
869 .Power supply, regulation, or energy storage system: (Class
323)
870 ..Including transformer or inductor: (Class 323/360)
871 .Magnetic lens: (Class 250/396)
872 .Magnetic field shield: (Class 307/91)
873 .Active solid state device: (Class 257)
874 ..With Josephson junction (e.g., SQUID, etc.): (Class 257)
875 ..Combined with housing and cryogenic fluid cooling: (Class
257)
876 .Electrical generator or motor structure: (Class 310)
877 ..Rotary dynamoelectric type: (Class 310/40+)
878 ...With cooling: (Class 310/52+)
879 .Magnet or electromagnet: (Class 335/216)
880 .Inductor: (Class 336/DIG1)
881 .Resistance device responsive to magnetic field: (Class
338/32S)
882 .Circuit maker or breaker: (Class 200)
883 .Housing and mounting assembly with plural diverse electrical
components: (Class 361/331+)
884 .Conductor: (Class 174)
885 ..Cooling, or feeding, circulating, or distributing fluid; in
superconductive apparatus: (Class 174/15CA)
886 ...Cable: (Class 174/15S)
887 ..Conductor structure: (Class 174/126S and 128S)
888 .Refrigeration: (Class 62)
889 ..Utilizing rare earth material
890 ..Heat pipe device
891 ..Magnetic or electrical effect cooling
892 ..Magnetic device cooling
893 ...Spectrometerr
894 ..Cyclic cryogenic system (e.g., Sterling, Gifford-McMahon,
etc.)
895 ...With regenerative heat exchanger
896 ..Special refrigerant compound
897 ..Cryogenic media transfer
898 ..Cryogenic envelope
899 ..Method of cooling
900 .Heat exchange: (Class 165)
901 ..Heat pipe
902 .Railway (e.g., rapid transit, etc.): (Class 104)
903 ..Suspension (e.g., magnetic, electrodynamic, etc.)
904 ...Guidance means (i.e., in addition to the track)
905 ...Motor structure
906 ...Switching device (i.e., electrical not railway stock
diverting)
907 ...Support structure
908 ...Method of operation
909 .Power plant: (Class 60)
910 .Pump: (Class 417)
911 .Fluid reaction surface (i.e., impeller): (Class 416)
912 .Metal founding: (Class 164)
913 ..Casting process
914 ...Using magnetic or electric field
915 ...Making composite product
916 ...Continuous casting
917 .Mechanically manufacturing superconductor: (Classes 29, 72, and
228)
918 ..With metallurgical heat treating
919 ...Reactive formation of superconducting intermetallic compound
920 ....Utilizing diffusion barrier
921 ....Metal working prior to treating
922 ..Making Josephson junction device
923 ..Making semiconductor device (e.g., integrated circuit, etc.)
924 ..Making superconductive magnet or coil
925 ..Making superconductive joint
926 ..Mechanically joining superconductive members
927 ..Metallurgically bonding superconductive members
928 ..Metal deforming
929 ...By extruding
930 ...By drawing
931 .Classifying, separating, and assorting solids using magnetism:
(Class 209)
932 ..Separating diverse particulates
933 ...In liquid slurry