PTO Manual of Classification for US patents

PTO Manual of Classification for US patents

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.


Enter a class/subclass code here to get a list of patent titles. Use any of the following forms:
363-131 121-55A 14-.5
that is, no embedded spaces, class and subclass seperated by a dash, and any subclass letters capitalized. Currently Design Patent titles (those in the classes of the form Dxx.yy) are not retreivable.

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Class Number: 343
 Class Title: COMMUNICATIONS: RADIO WAVE ANTENNAS

Subclass  Subclass
Number    Title

  700 R   ANTENNAS
  701     .Having electric space discharge device
  702     .With radio cabinet
  703     .Measuring signal energy
  704     .With ice clearer or preventer
  705     .With aircraft
  706     ..Lighter-than-air device
  707     ..Trailing type
  708     ..Aircraft part of active antenna or vice versa
  709     .Waterborne (e.g., buoyant or with watercraft)
  710     ..Watercraft part of active antenna or vice versa
  711     .With vehicle
  712     ..Vehicle part of active antenna or vice versa
  713     ..Supported by vehicle body
  714     ...Antenna adjustable from inside body
  715     ...Rod type
  716     ...Running board
  717     ..Supported underneath vehicle
  718     .Body-attached or connected
  719     .Buried underground or submerged under water
  720     .Combined with diverse-type art device
  721     ..Light
  722     .With lumped reactance filter in active antenna
  723     .Single adjustable length electrically long linear antenna
  724     .Convertible to different antennas
  725     .Plural separate diverse type
  726     ..Including balanced doublet and loop-type antennas
  727     ..Including balanced doublet-type antenna
  728     ..Including loop-type antenna
  729     .Plural diverse-type antennas using same active element
  730     ..Including balanced doublet-type antenna
  731     .Traveling wave type
  732     ..Circular loop
  733     ..Rhombic
  734     ...With feedback
  735     ..Balanced V
  736     ..Inverted V
  737     ..Plural
  738     ..With reflecting transformer
  739     .With terminating resistance at open end
  740     ..Balanced type
  741     .High frequency type loops
  742     ..Plural
  743     ..Feed coupling at spaced points on loop
  744     ..With series reactance in loop
  745     .With variable reactance for tuning antenna
  746     ..Slot type
  747     ..Balanced doublet type
  748     ..Loop type
  749     .With lumped reactance for loading antenna
  750     ..Adjustable reactance
  751     ..Plural antennass
  752     ..Reactance at free end of active antenna
  753     .With spaced or external radio wave refractor (e.g., lens)
  754     ..With scanning, sweeping, or orienting
  755     ..With reflector
  756     .With polarization filter or converter
  757     .With means for moving directive antenna for scanning, sweeping
            or orienting
  758     ..Plural relatively movable
  759     ..Spiral motion
  760     ..With signal, indicator or alarm
  761     ..Reflector and antenna relatively movable
  762     ..Wave guide type antenna
  763     ..Rotary or rotary oscillatory motion
  764     ...Loop-type antenna
  765     ...In different planes
  766     ...Motor-driven
  767     .Slot type
  768     ..With periodic control of slot or coupling
  769     ..Ring-shaped slot
  770     ..Plural
  771     ...With wave guide coupling
  772     .Wave guide type (e.g., horn)
  773     ..Biconical horn type
  774     ...Stacked
  775     ...With reflector
  776     ..Plural
  777     ...With control of individual antenna (e.g., lobe switching or
              steering)
  778     ...With phasing
  779     ...With reflector
  780     .."Pillbox" type
  781 R   ..With external reflector or director
  782     ...With means reducing re-radiation into active antenna
  781 P   ...Plural reflectors
  781 CA  ...With main and subreflector (Casse-grain type)
  783     ..With internal-wave refraction means
  784     ..With closure
  785     ..Dielectric type (e.g., polystyrene rod)
  786     ..With horn
  787     .Including magnetic material
  788     ..Loop type
  789     .Within conductive apertured wall
  790     .Active sleeve surrounds feed line
  791     ..With coaxial active rod
  792     ..Doublet type
  792.5   .Logarithmically periodic
  793     .Balanced doublet - centerfed (e.g., dipole)
  794     ..Diverse-type doublets
  795     ..Sheet or wing type
  796     ..Helically or angularly staggered plural doublets
  797     ..Plural crossed (e.g., turnstile)
  798     ...Plural groups (e.g., stacked)
  799     ..Plural circumferentially arranged
  800     ...Plural groups (e.g., stacked)
  801     ..Three or more collinear units form doublet
  802     ..Distributed reactance added to arms
  803     ..Folded
  804     ...Multiple conductor typee
  805     ..Arms angularly adjustable (e.g., rabbit ears)
  806     ..Bent arms (e.g., zigzag type)
  807     ..Tapered, thick, or enlarged arms
  808     ..Plural-rod arm forming V (e.g., conical arrangement)
  809     ..Arms non-linearly arranged (e.g., resonant V type)
  810     ..Plural
  811     ...Fishbone-type array
  812     ...Parallel arrangement
  813     ....Parallel and collinear arrangement
  814     ....With coupling network
  815     ....With parasitic element (e.g., reflector or director)
  816     ...With coupling network
  817     ...With parasitic element (e.g., reflector or director)
  818     ..With parasitic element (e.g., reflector or director)
  819     ...With reflector and director
  820     ..With coupling network or impedance in the leadin
  821     ...Balanced to unbalanced circuit
  822     ...Impedance matching network
  823     ..Adjustable length
  824     .Planar array of linear antennas
  825     .Fractional, multiple, or full wave length linear type
  826     ..Plural
  827     ...Collinear arrangement
  828     ..Non-uniformity in antenna
  829     ..With grounding structure, including counterpoises
  830     ...With coaxial feed line
  831     ..Stub type
  832     .Active antenna as reflector
  833     .Antenna with parasitic director
  834     .Antenna with parasitic reflector
  835     ..Plural active antennas
  836     ...Plural reflectors
  837     ..Plural reflectors
  838     ...Including a screening reflector
  839     ..Reflector and active antenna relatively movable
  840     ..Parabolic-type reflector with active antenna at focus
  841     .With electrical shield
  842     ..Loop-type antenna
  843     .Having an appreciable wave length dimension
  844     .Plural antennas spaced a fractional or full wave length apart
  845     .With ground connection spaced from feed line connection
  846     .With grounding structure (including counterpoises)
  847     ..Insulated from or capacity coupled to ground
  848     ..Artificial or substitute grounds (e.g., ground planes)
  849     ..Modified natural grounds
  850     .With coupling network or impedance in the leadin
  851     ..With radiation suppressor (e.g., shield)
  852     ..Plural path with impedance matching
  853     ..With plural antennas
  855     ...Loop antennas
  856     ..Antenna forms transformer primary or secondary
  857     ..Coupling at spaced points on antenna
  858     ..Coupled to plural leadins
  859     ..Balanced to unbalanced circuit
  860     ..Impedance matching network
  861     ...Adjustable
  862     ...Including long line element
  863     ....Taperedd
  864     ....Quarter-wave transformer
  865     ..Balanced coupling network to balanced antenna
  866     .Loop type
  867     ..Plural; plural or tapped coils
  868     ..Adjustable configuration, area or coil length
  869     ..With rotatable support
  870     ..With connector or terminals
  871     ..With collapsible or foldable frame
  872     .With housing or protective covering
  873     ..Antenna embedded, potted, or coated
  874     .Mast or tower type
  875     ..Sectional
  876     .Switching between antennas and lines
  877     .With reel for antenna
  878     .With support for antenna, reflector or director
  879     ..For plural separate antennas
  880     ..Adjustable or collapsible support
  881     ...Foldable
  882     ...Pivoted or rotatable
  883     ...Telescoping
  884     ..Plural wire transmission line or wave guide as support
  885     ..Stress distributing or static discharging means for support
  886     ..Horizontally suspended between poles or standards
  887     ..Streamline-shaped support
  888     ..For supporting rod-like end portion of antenna
  889     ...Rod retractible into support
  890     ..Antenna on post, standard or tower
  891     ...Antenna along length of post
  892     ..Antenna on bracket
  893     .Plural antennas
  894     .With signal, indicator or alarm
  895     .Spiral or helical type
  896     .Rods or wire form cage or hollow post
  897     .Mesh, woven, braided or multiple strip
  898     .Hollow metallic body
  899     .Having area increasing means (e.g., spiniferous, metal ball on
            top)
  900     .Rod type
  901     ..Telescoping
  902     ...Fluid pressure actuated
  903     ...Flexible rod actuated
  904     .Combined
  905     ..With transmission line
  906     ..With electrical connector
  907     .Antenna components
  908     ..Active antenna component of particular shape
  909     ..Refracting means and radio wave energy filters (e.g., lenses
             and polarizers)
  910     ...Zoned type
  911 R   ...Dielectric type
  911 L   ....Luneberg type
  912     ..Reflector or director
  913     ...With impedance
  914     ...Diverse curvature
  915     ...Collapsible, foldable or adjustable
  916     ...Made of detachable parts
  700 MS  .Microstrip
  *       *******************************
  *       DIGESTS
  *       ******************************
  DIG 1   With vibration damper or wind catcher
  DIG 2   Satellite-mounted antenna