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[Search a list of Patent Appplications for class 320]  Class   320ELECTRICITY: BATTERY OR CAPACITOR CHARGING OR DISCHARGING
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[List of Patents for class 320 subclass 100]  100           PRIMARY CELL DEPOLARIZATION
[List of Patents for class 320 subclass 101]  101           WIND, SOLAR, THERMAL, OR FUEL-CELL SOURCE
[List of Patents for class 320 subclass 102]  102           Subclass 102 indent level is 1 With shuntless charging source control
[List of Patents for class 320 subclass 103]  103           ONE CELL OR BATTERY CHARGES ANOTHER
[List of Patents for class 320 subclass 104]  104           Subclass 104 indent level is 1 Vehicle battery charging
[List of Patents for class 320 subclass 105]  105           Subclass 105 indent level is 2 Employing "jumper" cable
[List of Patents for class 320 subclass 106]  106           MEANS TO IDENTIFY CELL OR BATTERY TYPE
[List of Patents for class 320 subclass 107]  107           CELL OR BATTERY CHARGER STRUCTURE
[List of Patents for class 320 subclass 108]  108           Subclass 108 indent level is 1 Charger inductively coupled to cell or battery
[List of Patents for class 320 subclass 109]  109           Subclass 109 indent level is 1 Charging station for electrically powered vehicle
[List of Patents for class 320 subclass 110]  110           Subclass 110 indent level is 1 For diverse sizes of cells, batteries, or battery packs
[List of Patents for class 320 subclass 111]  111           Subclass 111 indent level is 1 Having plug for A-C receptacle
[List of Patents for class 320 subclass 112]  112           Subclass 112 indent level is 1 For battery pack
[List of Patents for class 320 subclass 113]  113           Subclass 113 indent level is 2 With charger stand or base adapted to hold battery pack
[List of Patents for class 320 subclass 114]  114           Subclass 114 indent level is 1 For handheld device
[List of Patents for class 320 subclass 115]  115           Subclass 115 indent level is 2 With charger stand or base
[List of Patents for class 320 subclass 116]  116           SERIALLY CONNECTED BATTERIES OR CELLS
[List of Patents for class 320 subclass 117]  117           Subclass 117 indent level is 1 Switchable to parallel connection
[List of Patents for class 320 subclass 118]  118           Subclass 118 indent level is 1 With discharge of cells or batteries
[List of Patents for class 320 subclass 119]  119           Subclass 119 indent level is 1 With individual charging of plural batteries or cells
[List of Patents for class 320 subclass 120]  120           Subclass 120 indent level is 1 Having variable number of cells or batteries in series
[List of Patents for class 320 subclass 121]  121           Subclass 121 indent level is 2 Switchable cells (e.g., for voltage regulation, etc.)
[List of Patents for class 320 subclass 122]  122           Subclass 122 indent level is 2 Bypassable battery cell
[List of Patents for class 320 subclass 123]  123           Subclass 123 indent level is 1 With generator charging source
[List of Patents for class 320 subclass 124]  124           SEQUENTIAL CHARGING OR DISCHARGING OF BATTERIES OR CELLS
[List of Patents for class 320 subclass 125]  125           DIVERSE CHARGING OR DISCHARGING RATES FOR PLURAL BATTERIES
[List of Patents for class 320 subclass 126]  126           PARALLEL CONNECTED BATTERIES
[List of Patents for class 320 subclass 127]  127           BATTERY OR CELL DISCHARGING
[List of Patents for class 320 subclass 128]  128           Subclass 128 indent level is 1 With charging
[List of Patents for class 320 subclass 129]  129           Subclass 129 indent level is 2 Pulsed discharge
[List of Patents for class 320 subclass 130]  130           Subclass 130 indent level is 2 Cycling (e.g., discharge/charge cycle, etc.)
[List of Patents for class 320 subclass 131]  131           Subclass 131 indent level is 3 Deep discharge (e.g., conditioning, etc.)
[List of Patents for class 320 subclass 132]  132           Subclass 132 indent level is 3 With state-of-charge detection
[List of Patents for class 320 subclass 133]  133           Subclass 133 indent level is 3 Time control
[List of Patents for class 320 subclass 134]  134           Subclass 134 indent level is 2 With battery or cell condition monitoring (e.g., for protection from overcharging, heating, etc.)
[List of Patents for class 320 subclass 135]  135           Subclass 135 indent level is 1 Regulated discharging
[List of Patents for class 320 subclass 136]  136           Subclass 136 indent level is 2 With battery or cell condition monitoring (e.g., for protection from overcharging, heating, etc.)
[List of Patents for class 320 subclass 137]  137           BATTERY OR CELL CHARGING
[List of Patents for class 320 subclass 138]  138           Subclass 138 indent level is 1 Plural charging sources
[List of Patents for class 320 subclass 139]  139           Subclass 139 indent level is 1 Pulsed
[List of Patents for class 320 subclass 140]  140           Subclass 140 indent level is 2 With DC-DC converter (e.g., flyback supply, etc.)
[List of Patents for class 320 subclass 141]  141           Subclass 141 indent level is 2 Pulse modulation
[List of Patents for class 320 subclass 142]  142           Subclass 142 indent level is 3 Phase controlled
[List of Patents for class 320 subclass 143]  143           Subclass 143 indent level is 4 With voltage compensation
[List of Patents for class 320 subclass 144]  144           Subclass 144 indent level is 5 And temperature compensation
[List of Patents for class 320 subclass 145]  145           Subclass 145 indent level is 3 Pulse-width modulation
[List of Patents for class 320 subclass 146]  146           Subclass 146 indent level is 2 Hysteresis type (e.g., antichattering, etc.)
[List of Patents for class 320 subclass 147]  147           Subclass 147 indent level is 1 Gas controlled
[List of Patents for class 320 subclass 148]  148           Subclass 148 indent level is 1 With peak detection of current or voltage (e.g., delta-V or delta-I utilized, etc.)
[List of Patents for class 320 subclass 149]  149           Subclass 149 indent level is 1 With detection of current or voltage integral (e.g., total charge, etc.)
[List of Patents for class 320 subclass 150]  150           Subclass 150 indent level is 1 With thermal condition detection
[List of Patents for class 320 subclass 151]  151           Subclass 151 indent level is 2 Detection of current or voltage differential (e.g., slope, etc.)
[List of Patents for class 320 subclass 152]  152           Subclass 152 indent level is 2 Detection of current or voltage amplitude
[List of Patents for class 320 subclass 153]  153           Subclass 153 indent level is 3 Temperature compensation
[List of Patents for class 320 subclass 154]  154           Subclass 154 indent level is 2 Thermal switch (e.g., thermostat, bimetallic switch, etc.)
[List of Patents for class 320 subclass 155]  155           Subclass 155 indent level is 1 Time control
[List of Patents for class 320 subclass 156]  156           Subclass 156 indent level is 2 Detection of current or voltage differential (e.g., slope, etc.)
[List of Patents for class 320 subclass 157]  157           Subclass 157 indent level is 2 Detection of current or voltage amplitude
[List of Patents for class 320 subclass 158]  158           Subclass 158 indent level is 3 Having solid-state control device
[List of Patents for class 320 subclass 159]  159           Subclass 159 indent level is 4 Detection of current and voltage amplitude
[List of Patents for class 320 subclass 160]  160           Subclass 160 indent level is 1 Multi-rate charging (e.g., plural charge rates before a maintenance charge, etc.)
[List of Patents for class 320 subclass 161]  161           Subclass 161 indent level is 1 With detection of current or voltage differential (e.g., slope, etc.)
[List of Patents for class 320 subclass 162]  162           Subclass 162 indent level is 1 With detection of current or voltage amplitude
[List of Patents for class 320 subclass 163]  163           Subclass 163 indent level is 2 Having solid-state control device
[List of Patents for class 320 subclass 164]  164           Subclass 164 indent level is 3 Detection of current and voltage amplitude
[List of Patents for class 320 subclass 165]  165           Subclass 165 indent level is 1 With current sensing to detect proper battery connection (e.g., polarity, ripple, reverse current, etc.)
[List of Patents for class 320 subclass 166]  166           CAPACITOR CHARGING OR DISCHARGING
[List of Patents for class 320 subclass 167]  167           Subclass 167 indent level is 1 For large capacitance (e.g., "super" capacitor, memory backup capacitor, etc.)
 
FOREIGN ART COLLECTIONS
 
   FOR000          CLASS-RELATED FOREIGN DOCUMENTS
Any foreign patents or non-patent literature from subclasses that have been reclassified have been transferred directly to FOR Collections listed below. These Collections contain ONLY foreign patents or non-patent literature. The parenthetical references in the Collection titles refer to the abolished subclasses from which these Collections were derived.
   FOR100          CONDENSER CHARGING AND/OR DISCHARGING (320/1)
   FOR101          BATTERY CHARGING AND/OR DISCHARGING (320/2)
   FOR102          Subclass FOR102 indent level is 1 Including dry cells or primary batteries (320/3)
   FOR103          Subclass FOR103 indent level is 2 "Recharging", depolarizing and/or reconditioning (320/4)
   FOR104          Subclass FOR104 indent level is 1 Combined charging and discharging (320/5)
   FOR105          Subclass FOR105 indent level is 2 Plural, diversely treated batteries (320/6)
   FOR106          Subclass FOR106 indent level is 3 Series-parallel connections thereof (320/7)
   FOR107          Subclass FOR107 indent level is 3 Transposition between charging and discharging circuits (320/8)
   FOR108          Subclass FOR108 indent level is 2 Combined regulation of charging source or circuit and discharging circuit (320/9)
   FOR109          Subclass FOR109 indent level is 2 Charging source and/or circuit controlled by discharging circuit (320/10)
   FOR110          Subclass FOR110 indent level is 3 Starting and/or stopping of battery charging (320/11)
   FOR111          Subclass FOR111 indent level is 3 Charging generator control (320/12)
   FOR112          Subclass FOR112 indent level is 2 Discharging circuit regulation (320/13)
   FOR113          Subclass FOR113 indent level is 2 Alternately charging and discharging (320/14)
   FOR114          Subclass FOR114 indent level is 1 Plural, diversely treated, batteries (320/15)
   FOR115          Subclass FOR115 indent level is 2 Series-parallel connections thereof (320/16)
   FOR116          Subclass FOR116 indent level is 2 Series-connected batteries (320/17)
   FOR117          Subclass FOR117 indent level is 3 Variable number in series (320/18)
   FOR118          Subclass FOR118 indent level is 2 Periodic or intermittent charging or discharging (320/19)
   FOR119          Subclass FOR119 indent level is 1 High-rate, short-time charging systems (320/20)
   FOR120          Subclass FOR120 indent level is 1 Periodic or intermittent charging or discharging (320/21)
   FOR121          Subclass FOR121 indent level is 1 Plural rates of charging or discharging (320/22)
   FOR122          Subclass FOR122 indent level is 2 Decreasing rates of charging (320/23)
   FOR123          Subclass FOR123 indent level is 3 Three or more rates (320/24)
   FOR124          Subclass FOR124 indent level is 1 With polarity control (320/25)
   FOR125          Subclass FOR125 indent level is 2 By means of reversing switches (320/26)
   FOR126          Subclass FOR126 indent level is 1 Combined control of source and charging circuit (320/27)
   FOR127          Subclass FOR127 indent level is 2 Including charging circuit-making and/or breaking (320/28)
   FOR128          Subclass FOR128 indent level is 1 Combined circuit regulation and circuit-making and/or breaking (320/29)
   FOR129          Subclass FOR129 indent level is 1 Control responsive to predetermined conditions (320/30)
   FOR130          Subclass FOR130 indent level is 2 Plural, diverse conditions and/or with time-delay means (320/31)
   FOR131          Subclass FOR131 indent level is 3 Including voltage and current magnitudes (320/32)
   FOR132          Subclass FOR132 indent level is 4 For battery circuit-making and/or breaking (320/33)
   FOR133          Subclass FOR133 indent level is 3 For battery circuit-making and/or breaking (320/34)
   FOR134          Subclass FOR134 indent level is 2 Thermal condition (320/35)
   FOR135          Subclass FOR135 indent level is 3 For battery circuit-making and/or breaking (320/36)
   FOR136          Subclass FOR136 indent level is 2 Instant of, or period of time (320/37)
   FOR137          Subclass FOR137 indent level is 3 For battery circuit-making and/or breaking (320/38)
   FOR138          Subclass FOR138 indent level is 2 Voltage or current magnitude (320/39)
   FOR139          Subclass FOR139 indent level is 3 For battery circuit-making and/or breaking (320/40)
   FOR140          Subclass FOR140 indent level is 2 Speed or centrifugal forces (320/41)
   FOR141          Subclass FOR141 indent level is 3 For battery circuit-making and/or breaking (320/42)
   FOR142          Subclass FOR142 indent level is 2 Condition of battery charge (320/43)
   FOR143          Subclass FOR143 indent level is 3 Control by ampere-hour or watt-hour type of device (320/44)
   FOR144          Subclass FOR144 indent level is 4 For battery circuit-making and/or breaking (320/45)
   FOR145          Subclass FOR145 indent level is 3 Control by gas pressure-responsive means (320/46)
   FOR146          Subclass FOR146 indent level is 2 For battery circuit-making and/or breaking (320/47)
   FOR147          Subclass FOR147 indent level is 1 With indicating, signaling and/or testing means (320/48)
   FOR148          Subclass FOR148 indent level is 1 Battery circuit control (320/49)
   FOR149          Subclass FOR149 indent level is 2 With bucking and/or boosting e.m.f. in charging circuit (320/50)
   FOR150          Subclass FOR150 indent level is 2 By impedance in charging or discharging circuit (320/51)
   FOR151          Subclass FOR151 indent level is 3 Pressure-responsive type of impedance (320/52)
   FOR152          Subclass FOR152 indent level is 2 Unidirectionally conductive devices in battery circuit (320/53)
   FOR153          Subclass FOR153 indent level is 2 Battery circuit-making and/or breaking (320/54)
   FOR154          Subclass FOR154 indent level is 3 Plural circuit makers and/or breakers (320/55)
   FOR155          Subclass FOR155 indent level is 1 Plural, diverse or diversely treated sources of supply for charging (320/56)
   FOR156          Subclass FOR156 indent level is 1 Rectifying systems for battery charging (320/57)
   FOR157          Subclass FOR157 indent level is 2 Dynamoelectric-type rectifier (320/58)
   FOR158          Subclass FOR158 indent level is 2 Unidirectionally conductive-type rectifier (320/59)
   FOR159          Subclass FOR159 indent level is 3 Space-discharge devices (320/60)
   FOR160          Subclass FOR160 indent level is 1 Generation systems for battery charging (320/61)
   FOR161          Subclass FOR161 indent level is 2 Physical starting and/or stopping of generator (320/62)
   FOR162          Subclass FOR162 indent level is 3 Generator used as starting means (320/63)
   FOR163          Subclass FOR163 indent level is 2 Generator field-winding circuit control (320/64)
   FOR164          Subclass FOR164 indent level is 3 Plural, diversely treated field windings (320/65)
   FOR165          Subclass FOR165 indent level is 4 Differentially related (320/66)
   FOR166          Subclass FOR166 indent level is 3 Auxiliary source or field circuit e.m.f. (320/67)
   FOR167          Subclass FOR167 indent level is 3 Field-winding circuit impedance (320/68)
   FOR168          Subclass FOR168 indent level is 4 Step short-circuited type (320/69)
   FOR169          Subclass FOR169 indent level is 4 Pressure-responsive type of impedance (320/70)
   FOR170          Subclass FOR170 indent level is 2 Armature or generating circuit shorted or grounded (320/71)
   FOR171          Subclass FOR171 indent level is 2 Generator structure control (320/72)
 
DIGESTS
 
[List of Patents for class 320 subclass DIG10]   DIG10           NONBATTERY LOAD CONTROLS CHARGING
[List of Patents for class 320 subclass DIG11]   DIG11           PRIORITIZED SUPPLY OF POWER OR POWER SUPPLY COMPENSATION
[List of Patents for class 320 subclass DIG12]   DIG12           PRECHARGING ANALYSIS (E.G., DETERMINING PRESENCE OF BATTERY, ETC.)
[List of Patents for class 320 subclass DIG13]   DIG13           FAULT DETECTION
[List of Patents for class 320 subclass DIG14]   DIG14           BATTERY ACTS AS BUFFER
[List of Patents for class 320 subclass DIG15]   DIG15           POLARITY CONTROL
[List of Patents for class 320 subclass DIG16]   DIG16           REMOVAL OF MEMORY EFFECT IN BATTERIES
[List of Patents for class 320 subclass DIG17]   DIG17           SENSING OF "GASSING" VOLTAGE
[List of Patents for class 320 subclass DIG18]   DIG18           INDICATOR OR DISPLAY
[List of Patents for class 320 subclass DIG19]   DIG19           Subclass DIG19 indent level is 1 Charger status (e.g., voltmeter, etc.)
[List of Patents for class 320 subclass DIG20]   DIG20           Subclass DIG20 indent level is 1 Polarity
[List of Patents for class 320 subclass DIG21]   DIG21           Subclass DIG21 indent level is 1 State of charge of battery
[List of Patents for class 320 subclass DIG22]   DIG22           LINE IMPEDANCE (E.G., RESISTOR, ETC.)
[List of Patents for class 320 subclass DIG23]   DIG23           Subclass DIG23 indent level is 1 Capacitor
[List of Patents for class 320 subclass DIG24]   DIG24           Subclass DIG24 indent level is 1 Inductor
[List of Patents for class 320 subclass DIG25]   DIG25           OPTICAL COUPLER
[List of Patents for class 320 subclass DIG26]   DIG26           BUTTON OR HEARING AID TYPE
[List of Patents for class 320 subclass DIG27]   DIG27           TRANSFORMERLESS
[List of Patents for class 320 subclass DIG28]   DIG28           REGULATING TRANSFORMER (E.G., HIGH LEAKAGE, FERRO-RESONANT, ETC.)
[List of Patents for class 320 subclass DIG29]   DIG29           TRANSFORMER HAVING PLURAL SECONDARIES
[List of Patents for class 320 subclass DIG30]   DIG30           PLURAL TRANSFORMERS
[List of Patents for class 320 subclass DIG31]   DIG31           PLURAL RECTIFIER SYSTEMS
[List of Patents for class 320 subclass DIG32]   DIG32           VOLTAGE DIVIDER HAVING DIVERSE ELEMENTS OTHER THAN MERELY PLURAL RESISTORS
[List of Patents for class 320 subclass DIG33]   DIG33           AIRCRAFT OR SPACECRAFT APPLICATION
[List of Patents for class 320 subclass DIG34]   DIG34           ROBOT, HYBRID, RECREATIONAL OR EMERGENCY VEHICLE
[List of Patents for class 320 subclass DIG35]   DIG35           HOME POWER STATION
[List of Patents for class 320 subclass DIG36]   DIG36           DISTRIBUTION SYSTEM (E.G., RAILROAD LIGHTING, ETC.)

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