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Classification Resources
 
Class   342COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION)
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[List of Pre Grant Publications for class 342 subclass 1][List of Patents for class 342 subclass 1]1 RADIO WAVE ABSORBER
[List of Pre Grant Publications for class 342 subclass 5][List of Patents for class 342 subclass 5]5 RADAR REFLECTOR
[List of Pre Grant Publications for class 342 subclass 13][List of Patents for class 342 subclass 13]13 RADAR EW (ELECTRONIC WARFARE)
 [List of Pre Grant Publications for class 342 subclass 21][List of Patents for class 342 subclass 21]21 BASE BAND SYSTEM
 [List of Pre Grant Publications for class 342 subclass 22][List of Patents for class 342 subclass 22]22 TRANSMISSION THROUGH MEDIA OTHER THAN AIR OR FREE SPACE
 [List of Pre Grant Publications for class 342 subclass 23][List of Patents for class 342 subclass 23]23 BERTHING OR DOCKING
 [List of Pre Grant Publications for class 342 subclass 24][List of Patents for class 342 subclass 24]24 BLIND AID
[List of Pre Grant Publications for class 342 subclass 25R][List of Patents for class 342 subclass 25R]  25R SYNTHETIC APERTURE RADAR
[List of Pre Grant Publications for class 342 subclass 26R][List of Patents for class 342 subclass 26R]  26R RADAR FOR METEOROLOGICAL USE (EPO)
[List of Pre Grant Publications for class 342 subclass 27][List of Patents for class 342 subclass 27]27 PRESENCE DETECTION ONLY
[List of Pre Grant Publications for class 342 subclass 29][List of Patents for class 342 subclass 29]29 AIRCRAFT COLLISION AVOIDANCE SYSTEM (CAS)
[List of Pre Grant Publications for class 342 subclass 33][List of Patents for class 342 subclass 33]33 AIRCRAFT LANDING SYSTEM
[List of Pre Grant Publications for class 342 subclass 36][List of Patents for class 342 subclass 36]36 AIR TRAFFIC CONTROL
 [List of Pre Grant Publications for class 342 subclass 41][List of Patents for class 342 subclass 41]41 SHIP COLLISION AVOIDANCE
[List of Pre Grant Publications for class 342 subclass 42][List of Patents for class 342 subclass 42]42 RADAR TRANSPONDER SYSTEM
[List of Pre Grant Publications for class 342 subclass 52][List of Patents for class 342 subclass 52]52 COMBINED WITH DIVERSE TYPE RADIANT ENERGY SYSTEM
 [List of Pre Grant Publications for class 342 subclass 59][List of Patents for class 342 subclass 59]59 PLURAL RADAR
 [List of Pre Grant Publications for class 342 subclass 60][List of Patents for class 342 subclass 60]60 TRANSMITTING INTELLIGENCE
[List of Pre Grant Publications for class 342 subclass 61][List of Patents for class 342 subclass 61]61 RETURN SIGNAL CONTROLS EXTERNAL DEVICE
[List of Pre Grant Publications for class 342 subclass 73][List of Patents for class 342 subclass 73]73 RETURN SIGNAL CONTROLS RADAR SYSTEM
[List of Pre Grant Publications for class 342 subclass 104][List of Patents for class 342 subclass 104]104 DETERMINING VELOCITY
[List of Pre Grant Publications for class 342 subclass 118][List of Patents for class 342 subclass 118]118 DETERMINING DISTANCE
[List of Pre Grant Publications for class 342 subclass 147][List of Patents for class 342 subclass 147]147 DETERMINING DIRECTION
[List of Pre Grant Publications for class 342 subclass 159][List of Patents for class 342 subclass 159]159 CLUTTER ELIMINATION
[List of Pre Grant Publications for class 342 subclass 165][List of Patents for class 342 subclass 165]165 TESTING OR CALIBRATING OF RADAR SYSTEM
[List of Pre Grant Publications for class 342 subclass 175][List of Patents for class 342 subclass 175]175 WITH PARTICULAR CIRCUIT
[List of Pre Grant Publications for class 342 subclass 350][List of Patents for class 342 subclass 350]350 DIRECTIVE
 [List of Pre Grant Publications for class 342 subclass 351][List of Patents for class 342 subclass 351]351 Subclass 351 indent level is 1 Including a radiometer
[List of Pre Grant Publications for class 342 subclass 352][List of Patents for class 342 subclass 352]352 Subclass 352 indent level is 1 Including a satellite
 [List of Pre Grant Publications for class 342 subclass 353][List of Patents for class 342 subclass 353]353 Subclass 353 indent level is 2 Having a signal repeater
 [List of Pre Grant Publications for class 342 subclass 354][List of Patents for class 342 subclass 354]354 Subclass 354 indent level is 2 With beam steering
 [List of Pre Grant Publications for class 342 subclass 355][List of Patents for class 342 subclass 355]355 Subclass 355 indent level is 2 With control of satellite attitude
 [List of Pre Grant Publications for class 342 subclass 356][List of Patents for class 342 subclass 356]356 Subclass 356 indent level is 2 Synchronous satellite
[List of Pre Grant Publications for class 342 subclass 357.2][List of Patents for class 342 subclass 357.2]357.2 Subclass 357.2 indent level is 2 With position, velocity, or attitude determination (IPC)
[List of Pre Grant Publications for class 342 subclass 357.21][List of Patents for class 342 subclass 357.21]357.21 Subclass 357.21 indent level is 3 Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
[List of Pre Grant Publications for class 342 subclass 357.22][List of Patents for class 342 subclass 357.22]357.22 Subclass 357.22 indent level is 4 Satellite radio beacon positioning system transmitting time-stamped messages; e.g., GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO (IPC)
[List of Pre Grant Publications for class 342 subclass 357.39][List of Patents for class 342 subclass 357.39]357.39 Subclass 357.39 indent level is 3 Satellite radio beacon positioning system transmitting time-stamped messages; e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO (IPC)
 [List of Pre Grant Publications for class 342 subclass 357.395][List of Patents for class 342 subclass 357.395]357.395 Subclass 357.395 indent level is 4 Details of the space or ground control segments (IPC)
[List of Pre Grant Publications for class 342 subclass 357.4][List of Patents for class 342 subclass 357.4]357.4 Subclass 357.4 indent level is 4 Cooperating elements; interaction or communication between different cooperating elements or between cooperating elements and receivers (IPC)
[List of Pre Grant Publications for class 342 subclass 357.51][List of Patents for class 342 subclass 357.51]357.51 Subclass 357.51 indent level is 4 Receivers (IPC)
 [List of Pre Grant Publications for class 342 subclass 357.78][List of Patents for class 342 subclass 357.78]357.78 Subclass 357.78 indent level is 3 Using Doppler frequency shift
 [List of Pre Grant Publications for class 342 subclass 358][List of Patents for class 342 subclass 358]358 Subclass 358 indent level is 2 With satellite signal correction
 [List of Pre Grant Publications for class 342 subclass 359][List of Patents for class 342 subclass 359]359 Subclass 359 indent level is 1 Including antenna orientation
 [List of Pre Grant Publications for class 342 subclass 360][List of Patents for class 342 subclass 360]360 Subclass 360 indent level is 1 Including antenna pattern plotting
[List of Pre Grant Publications for class 342 subclass 361][List of Patents for class 342 subclass 361]361 Subclass 361 indent level is 1 Including polarized signal communication transmitter or receiver
 [List of Pre Grant Publications for class 342 subclass 367][List of Patents for class 342 subclass 367]367 Subclass 367 indent level is 1 Including directive communication system
[List of Pre Grant Publications for class 342 subclass 368][List of Patents for class 342 subclass 368]368 Subclass 368 indent level is 1 Including a steerable array
[List of Pre Grant Publications for class 342 subclass 378][List of Patents for class 342 subclass 378]378 Subclass 378 indent level is 1 Utilizing correlation techniques
[List of Pre Grant Publications for class 342 subclass 385][List of Patents for class 342 subclass 385]385 Subclass 385 indent level is 1 Beacon or receiver
[List of Pre Grant Publications for class 342 subclass 386][List of Patents for class 342 subclass 386]386 Subclass 386 indent level is 2 With transmisson of bearing or position determinative signals
[List of Pre Grant Publications for class 342 subclass 417][List of Patents for class 342 subclass 417]417 Subclass 417 indent level is 2 Direction-finding receiver only
[List of Pre Grant Publications for class 342 subclass 450][List of Patents for class 342 subclass 450]450 Subclass 450 indent level is 1 Position indicating (e.g., triangulation)
 
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.