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Classification Resources
 
Class   333WAVE TRANSMISSION LINES AND NETWORKS
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[List of Pre Grant Publications for class 333 subclass 1][List of Patents for class 333 subclass 1]1 PLURAL CHANNEL SYSTEMS
 [List of Pre Grant Publications for class 333 subclass 12][List of Patents for class 333 subclass 12]12 TRANSMISSION LINE INDUCTIVE OR RADIATION INTERFERENCE REDUCTION SYSTEMS
 [List of Pre Grant Publications for class 333 subclass 13][List of Patents for class 333 subclass 13]13 RESONATOR-TYPE BREAKDOWN DISCHARGE SYSTEMS (E.G., T-R OR R-T SYSTEMS)
 [List of Pre Grant Publications for class 333 subclass 14][List of Patents for class 333 subclass 14]14 AMPLITUDE COMPRESSION AND EXPANSION SYSTEMS (I.E., COMPANDERS)
 [List of Pre Grant Publications for class 333 subclass 15][List of Patents for class 333 subclass 15]15 PILOT LINE-CONTROLLED SYSTEMS
 [List of Pre Grant Publications for class 333 subclass 16][List of Patents for class 333 subclass 16]16 PILOT CURRENT-CONTROLLED SYSTEMS
[List of Pre Grant Publications for class 333 subclass 17.1][List of Patents for class 333 subclass 17.1]17.1 AUTOMATICALLY CONTROLLED SYSTEMS
 [List of Pre Grant Publications for class 333 subclass 19][List of Patents for class 333 subclass 19]19 DIFFERENTIATING OR INTEGRATING SYSTEMS
 [List of Pre Grant Publications for class 333 subclass 20][List of Patents for class 333 subclass 20]20 WAVE-SHAPING
[List of Pre Grant Publications for class 333 subclass 21R][List of Patents for class 333 subclass 21R]  21R WAVE MODE CONVERTERS
[List of Pre Grant Publications for class 333 subclass 22R][List of Patents for class 333 subclass 22R]  22R DISSIPATING TERMINATIONS FOR LONG LINES
 [List of Pre Grant Publications for class 333 subclass 23][List of Patents for class 333 subclass 23]23 ARTIFICIAL LINES
[List of Pre Grant Publications for class 333 subclass 24R][List of Patents for class 333 subclass 24R]  24R COUPLING NETWORKS
[List of Pre Grant Publications for class 333 subclass 24.1][List of Patents for class 333 subclass 24.1]24.1 Subclass 24.1 indent level is 1 Nonreciprocal gyromagnetic type (e.g., directional phase shifters)
[List of Pre Grant Publications for class 333 subclass 25][List of Patents for class 333 subclass 25]25 Subclass 25 indent level is 1 Balanced to unbalanced circuits
 [List of Pre Grant Publications for class 333 subclass 27][List of Patents for class 333 subclass 27]27 Subclass 27 indent level is 1 Interlinking long line
[List of Pre Grant Publications for class 333 subclass 28R][List of Patents for class 333 subclass 28R]  28R Subclass 28R indent level is 1 Equalizers
[List of Pre Grant Publications for class 333 subclass 138][List of Patents for class 333 subclass 138]138 Subclass 138 indent level is 1 Delay lines including a lumped parameter
[List of Pre Grant Publications for class 333 subclass 141][List of Patents for class 333 subclass 141]141 Subclass 141 indent level is 1 Delay lines including elastic bulk wave propagation means
[List of Pre Grant Publications for class 333 subclass 150][List of Patents for class 333 subclass 150]150 Subclass 150 indent level is 1 Delay lines including elastic surface wave propagation means
[List of Pre Grant Publications for class 333 subclass 156][List of Patents for class 333 subclass 156]156 Subclass 156 indent level is 1 Delay lines including long line elements
[List of Pre Grant Publications for class 333 subclass 32][List of Patents for class 333 subclass 32]32 Subclass 32 indent level is 1 With impedance matching
 [List of Pre Grant Publications for class 333 subclass 165][List of Patents for class 333 subclass 165]165 Subclass 165 indent level is 1 Frequency or time domain filters and delay lines utilizing charge transfer devices
 [List of Pre Grant Publications for class 333 subclass 166][List of Patents for class 333 subclass 166]166 Subclass 166 indent level is 1 Time domain filters
[List of Pre Grant Publications for class 333 subclass 167][List of Patents for class 333 subclass 167]167 Subclass 167 indent level is 1 Frequency domain filters utilizing only lumped parameters
[List of Pre Grant Publications for class 333 subclass 186][List of Patents for class 333 subclass 186]186 Subclass 186 indent level is 1 Electromechanical filter
[List of Pre Grant Publications for class 333 subclass 202][List of Patents for class 333 subclass 202]202 Subclass 202 indent level is 1 Wave filters including long line elements
 [List of Pre Grant Publications for class 333 subclass 24C][List of Patents for class 333 subclass 24C]24C Subclass 24C indent level is 1 Capacitive coupling
[List of Pre Grant Publications for class 333 subclass 213][List of Patents for class 333 subclass 213]213 NEGATIVE RESISTANCE OR REACTANCE NETWORKS OF THE ACTIVE TYPE
[List of Pre Grant Publications for class 333 subclass 81R][List of Patents for class 333 subclass 81R]  81R ATTENUATORS
 [List of Pre Grant Publications for class 333 subclass 218][List of Patents for class 333 subclass 218]218 FREQUENCY MULTIPLIERS
[List of Pre Grant Publications for class 333 subclass 219][List of Patents for class 333 subclass 219]219 RESONATORS (DISTRIBUTED PARAMETER TYPE)
[List of Pre Grant Publications for class 333 subclass 236][List of Patents for class 333 subclass 236]236 LONG LINES
[List of Pre Grant Publications for class 333 subclass 245][List of Patents for class 333 subclass 245]245 LONG LINE ELEMENTS AND COMPONENTS
[List of Pre Grant Publications for class 333 subclass 99R][List of Patents for class 333 subclass 99R]  99R MISCELLANEOUS
 
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