PATENTS   
Patents > Guidance, Tools, and Manuals > Classification > Class Schedule
    Class Numbers & Titles   | Class Numbers Only   | USPC Index   | International   | HELP  
You are viewing a USPC Schedule.
Class   398OPTICAL COMMUNICATIONS
Click here for a printable version of this file
  Turn Outline  
     Expand/Contract Processing Please Wait
[List of Pre Grant Publications for class 398 subclass 1][List of Patents for class 398 subclass 1]1 FAULT RECOVERY
[List of Pre Grant Publications for class 398 subclass 2][List of Patents for class 398 subclass 2]2 Subclass 2 indent level is 1 Bypass inoperative element
[List of Pre Grant Publications for class 398 subclass 3][List of Patents for class 398 subclass 3]3 Subclass 3 indent level is 2 In a ring or loop
 [List of Pre Grant Publications for class 398 subclass 5][List of Patents for class 398 subclass 5]5 Subclass 5 indent level is 2 Spare channel or standby optical fiber
 [List of Pre Grant Publications for class 398 subclass 6][List of Patents for class 398 subclass 6]6 Subclass 6 indent level is 1 In a repeater system
 [List of Pre Grant Publications for class 398 subclass 7][List of Patents for class 398 subclass 7]7 Subclass 7 indent level is 1 WDM
 [List of Pre Grant Publications for class 398 subclass 8][List of Patents for class 398 subclass 8]8 Subclass 8 indent level is 1 TDM
[List of Pre Grant Publications for class 398 subclass 9][List of Patents for class 398 subclass 9]9 DIAGNOSTIC TESTING
[List of Pre Grant Publications for class 398 subclass 10][List of Patents for class 398 subclass 10]10 Subclass 10 indent level is 1 Fault location
 [List of Pre Grant Publications for class 398 subclass 11][List of Patents for class 398 subclass 11]11 Subclass 11 indent level is 2 Repeater
 [List of Pre Grant Publications for class 398 subclass 12][List of Patents for class 398 subclass 12]12 Subclass 12 indent level is 2 Switch
 [List of Pre Grant Publications for class 398 subclass 13][List of Patents for class 398 subclass 13]13 Subclass 13 indent level is 2 Fiber or waveguide
 [List of Pre Grant Publications for class 398 subclass 14][List of Patents for class 398 subclass 14]14 Subclass 14 indent level is 2 WDM
 [List of Pre Grant Publications for class 398 subclass 15][List of Patents for class 398 subclass 15]15 Subclass 15 indent level is 2 Stop transmission or reduce power
 [List of Pre Grant Publications for class 398 subclass 16][List of Patents for class 398 subclass 16]16 Subclass 16 indent level is 1 Test signal
[List of Pre Grant Publications for class 398 subclass 17][List of Patents for class 398 subclass 17]17 Subclass 17 indent level is 1 Fault detection
 [List of Pre Grant Publications for class 398 subclass 18][List of Patents for class 398 subclass 18]18 Subclass 18 indent level is 2 Repeater
 [List of Pre Grant Publications for class 398 subclass 19][List of Patents for class 398 subclass 19]19 Subclass 19 indent level is 2 Switch
[List of Pre Grant Publications for class 398 subclass 20][List of Patents for class 398 subclass 20]20 Subclass 20 indent level is 2 Optical fiber
 [List of Pre Grant Publications for class 398 subclass 22][List of Patents for class 398 subclass 22]22 Subclass 22 indent level is 2 Transceiver
 [List of Pre Grant Publications for class 398 subclass 23][List of Patents for class 398 subclass 23]23 Subclass 23 indent level is 2 Transmitter
 [List of Pre Grant Publications for class 398 subclass 24][List of Patents for class 398 subclass 24]24 Subclass 24 indent level is 2 Receiver
[List of Pre Grant Publications for class 398 subclass 25][List of Patents for class 398 subclass 25]25 Subclass 25 indent level is 1 Determination of communication parameter
 [List of Pre Grant Publications for class 398 subclass 26][List of Patents for class 398 subclass 26]26 Subclass 26 indent level is 2 Signal to noise ratio
 [List of Pre Grant Publications for class 398 subclass 27][List of Patents for class 398 subclass 27]27 Subclass 27 indent level is 2 Bit error rate
[List of Pre Grant Publications for class 398 subclass 28][List of Patents for class 398 subclass 28]28 Subclass 28 indent level is 2 Fiber characteristic
[List of Pre Grant Publications for class 398 subclass 30][List of Patents for class 398 subclass 30]30 Subclass 30 indent level is 2 Using supervisory signal
 [List of Pre Grant Publications for class 398 subclass 34][List of Patents for class 398 subclass 34]34 Subclass 34 indent level is 2 WDM system
 [List of Pre Grant Publications for class 398 subclass 35][List of Patents for class 398 subclass 35]35 Subclass 35 indent level is 2 TDM system
 [List of Pre Grant Publications for class 398 subclass 36][List of Patents for class 398 subclass 36]36 Subclass 36 indent level is 2 Collision detection
 [List of Pre Grant Publications for class 398 subclass 37][List of Patents for class 398 subclass 37]37 Subclass 37 indent level is 2 Amplifier or repeater operation
 [List of Pre Grant Publications for class 398 subclass 38][List of Patents for class 398 subclass 38]38 Subclass 38 indent level is 2 Power
 [List of Pre Grant Publications for class 398 subclass 39][List of Patents for class 398 subclass 39]39 INTERFERENCE SIGNAL TRANSMISSION OR ELIMINATION (E.G., JAMMING OR ANTIJAMMING)
 [List of Pre Grant Publications for class 398 subclass 40][List of Patents for class 398 subclass 40]40 EAVESDROPPING
[List of Pre Grant Publications for class 398 subclass 41][List of Patents for class 398 subclass 41]41 DUPLEX
 [List of Pre Grant Publications for class 398 subclass 42][List of Patents for class 398 subclass 42]42 Subclass 42 indent level is 1 Wavelength division
[List of Pre Grant Publications for class 398 subclass 43][List of Patents for class 398 subclass 43]43 MULTIPLEX
 [List of Pre Grant Publications for class 398 subclass 44][List of Patents for class 398 subclass 44]44 Subclass 44 indent level is 1 Mode
[List of Pre Grant Publications for class 398 subclass 45][List of Patents for class 398 subclass 45]45 Subclass 45 indent level is 1 Optical switching
[List of Pre Grant Publications for class 398 subclass 46][List of Patents for class 398 subclass 46]46 Subclass 46 indent level is 2 Hybrid
[List of Pre Grant Publications for class 398 subclass 48][List of Patents for class 398 subclass 48]48 Subclass 48 indent level is 2 Wavelength
[List of Pre Grant Publications for class 398 subclass 52][List of Patents for class 398 subclass 52]52 Subclass 52 indent level is 2 Time
[List of Pre Grant Publications for class 398 subclass 55][List of Patents for class 398 subclass 55]55 Subclass 55 indent level is 2 space
[List of Pre Grant Publications for class 398 subclass 58][List of Patents for class 398 subclass 58]58 Subclass 58 indent level is 1 Optical local area network (LAN)
 [List of Pre Grant Publications for class 398 subclass 59][List of Patents for class 398 subclass 59]59 Subclass 59 indent level is 2 Ring or loop
 [List of Pre Grant Publications for class 398 subclass 60][List of Patents for class 398 subclass 60]60 Subclass 60 indent level is 2 Bus
[List of Pre Grant Publications for class 398 subclass 61][List of Patents for class 398 subclass 61]61 Subclass 61 indent level is 2 Active star
[List of Pre Grant Publications for class 398 subclass 63][List of Patents for class 398 subclass 63]63 Subclass 63 indent level is 2 Passive star
 [List of Pre Grant Publications for class 398 subclass 65][List of Patents for class 398 subclass 65]65 Subclass 65 indent level is 1 Polarization
[List of Pre Grant Publications for class 398 subclass 66][List of Patents for class 398 subclass 66]66 Subclass 66 indent level is 1 Broadcast and distribution system
 [List of Pre Grant Publications for class 398 subclass 67][List of Patents for class 398 subclass 67]67 Subclass 67 indent level is 2 Bidirectional
[List of Pre Grant Publications for class 398 subclass 68][List of Patents for class 398 subclass 68]68 Subclass 68 indent level is 2 WDM
[List of Pre Grant Publications for class 398 subclass 74][List of Patents for class 398 subclass 74]74 Subclass 74 indent level is 1 Hybrid
 [List of Pre Grant Publications for class 398 subclass 75][List of Patents for class 398 subclass 75]75 Subclass 75 indent level is 2 Time and wavelength division
 [List of Pre Grant Publications for class 398 subclass 76][List of Patents for class 398 subclass 76]76 Subclass 76 indent level is 1 Subcarrier multiplexing
[List of Pre Grant Publications for class 398 subclass 77][List of Patents for class 398 subclass 77]77 Subclass 77 indent level is 1 Code division multiplexing
 [List of Pre Grant Publications for class 398 subclass 78][List of Patents for class 398 subclass 78]78 Subclass 78 indent level is 2 Multiple Access (e.g., CDMA)
[List of Pre Grant Publications for class 398 subclass 79][List of Patents for class 398 subclass 79]79 Subclass 79 indent level is 1 Wavelength division or frequency division (e.g., Raman, Brillouin, etc.)
 [List of Pre Grant Publications for class 398 subclass 80][List of Patents for class 398 subclass 80]80 Subclass 80 indent level is 2 Soliton
 [List of Pre Grant Publications for class 398 subclass 81][List of Patents for class 398 subclass 81]81 Subclass 81 indent level is 2 Dispersion compensation
[List of Pre Grant Publications for class 398 subclass 82][List of Patents for class 398 subclass 82]82 Subclass 82 indent level is 2 By optical coupling
 [List of Pre Grant Publications for class 398 subclass 89][List of Patents for class 398 subclass 89]89 Subclass 89 indent level is 2 Multiple Access (e.g., WDMA)
 [List of Pre Grant Publications for class 398 subclass 90][List of Patents for class 398 subclass 90]90 Subclass 90 indent level is 2 Electrically controlled single source
[List of Pre Grant Publications for class 398 subclass 91][List of Patents for class 398 subclass 91]91 Subclass 91 indent level is 2 Different sources
[List of Pre Grant Publications for class 398 subclass 93][List of Patents for class 398 subclass 93]93 Subclass 93 indent level is 2 Including feedback
 [List of Pre Grant Publications for class 398 subclass 96][List of Patents for class 398 subclass 96]96 Subclass 96 indent level is 2 Through free space
 [List of Pre Grant Publications for class 398 subclass 97][List of Patents for class 398 subclass 97]97 Subclass 97 indent level is 2 Repeater
[List of Pre Grant Publications for class 398 subclass 98][List of Patents for class 398 subclass 98]98 Subclass 98 indent level is 1 Time division
 [List of Pre Grant Publications for class 398 subclass 99][List of Patents for class 398 subclass 99]99 Subclass 99 indent level is 2 Multiple access (e.g., TDMA, CSMA)
 [List of Pre Grant Publications for class 398 subclass 100][List of Patents for class 398 subclass 100]100 Subclass 100 indent level is 2 Subscriber system
 [List of Pre Grant Publications for class 398 subclass 101][List of Patents for class 398 subclass 101]101 Subclass 101 indent level is 2 By specific optical element
 [List of Pre Grant Publications for class 398 subclass 102][List of Patents for class 398 subclass 102]102 Subclass 102 indent level is 2 Including delay
 [List of Pre Grant Publications for class 398 subclass 103][List of Patents for class 398 subclass 103]103 Subclass 103 indent level is 2 Through free space
[List of Pre Grant Publications for class 398 subclass 104][List of Patents for class 398 subclass 104]104 UNDERWATER
 [List of Pre Grant Publications for class 398 subclass 105][List of Patents for class 398 subclass 105]105 Subclass 105 indent level is 1 Cable repeater
[List of Pre Grant Publications for class 398 subclass 106][List of Patents for class 398 subclass 106]106 REMOTE CONTROL
[List of Pre Grant Publications for class 398 subclass 107][List of Patents for class 398 subclass 107]107 Subclass 107 indent level is 1 Bidirectional (i.e., monitoring or acknowledge)
 [List of Pre Grant Publications for class 398 subclass 108][List of Patents for class 398 subclass 108]108 Subclass 108 indent level is 2 Interrogator system
[List of Pre Grant Publications for class 398 subclass 109][List of Patents for class 398 subclass 109]109 Subclass 109 indent level is 1 In industrial environment or hazardous environmrnt
 [List of Pre Grant Publications for class 398 subclass 110][List of Patents for class 398 subclass 110]110 Subclass 110 indent level is 2 Through optical fiber or waveguide
 [List of Pre Grant Publications for class 398 subclass 111][List of Patents for class 398 subclass 111]111 Subclass 111 indent level is 1 Switching
 [List of Pre Grant Publications for class 398 subclass 112][List of Patents for class 398 subclass 112]112 Subclass 112 indent level is 1 Plural
 [List of Pre Grant Publications for class 398 subclass 113][List of Patents for class 398 subclass 113]113 Subclass 113 indent level is 1 Through optical fiber or waveguide
 [List of Pre Grant Publications for class 398 subclass 114][List of Patents for class 398 subclass 114]114 Subclass 114 indent level is 1 Rotating part
[List of Pre Grant Publications for class 398 subclass 115][List of Patents for class 398 subclass 115]115 HYBRID COMMUNICATION SYSTEM (E.G., OPTICAL AND RF)
[List of Pre Grant Publications for class 398 subclass 116][List of Patents for class 398 subclass 116]116 Subclass 116 indent level is 1 Including specific optical interface
 [List of Pre Grant Publications for class 398 subclass 117][List of Patents for class 398 subclass 117]117 Subclass 117 indent level is 2 Housing or mounting
[List of Pre Grant Publications for class 398 subclass 118][List of Patents for class 398 subclass 118]118 OPTICAL COMMUNICATION OVER FREEE SPACE
[List of Pre Grant Publications for class 398 subclass 119][List of Patents for class 398 subclass 119]119 Subclass 119 indent level is 1 Compensation
 [List of Pre Grant Publications for class 398 subclass 120][List of Patents for class 398 subclass 120]120 Subclass 120 indent level is 2 Power control
[List of Pre Grant Publications for class 398 subclass 121][List of Patents for class 398 subclass 121]121 Subclass 121 indent level is 1 Satellite system
[List of Pre Grant Publications for class 398 subclass 122][List of Patents for class 398 subclass 122]122 Subclass 122 indent level is 2 Including alignment
 [List of Pre Grant Publications for class 398 subclass 123][List of Patents for class 398 subclass 123]