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.

Enter class/subclass code:


Class Number: 385
 Class Title: OPTICAL WAVEGUIDES

Subclass  Subclass
Number    Title

  1       TEMPORAL OPTICAL MODULATION WITHIN AN OPTICAL WAVEGUIDE
  2       .Electro-optic
  3       ..Phase modulation type
  4       DIRECTIONAL OPTICAL MODULATION WITHIN AN OPTICAL WAVEGUIDE
  5       .Light intensity dependent (e.g., nonlinear effects)
  6       .Magneto-optic
  7       .Acousto-optic
  8       .Electro-optic
  9       ..Coupling between waveguides
  10      ..Diffraction grating (e.g., Bragg)
  11      POLARIZATION WITHOUT MODULATION
  12      OPTICAL WAVEGUIDE SENSOR
  13      .Including physical deformation or movement of waveguide
  14      INTEGRATED OPTICAL CIRCUIT
  15      WITH OPTICAL COUPLER
  16      .Switch (i.e., switching from one terminal to another, not
            modulation)
  17      ..Matrix switch (i.e., M X N, where M and N are 3 or more)
  18      ..Reflective type switch
  19      ..Stationary waveguides with movable opaque element
  20      ..Multiple pole multiple throw
  21      ...Double pole multiple throw
  22      ..Single pole multiple throw (relay switch)
  23      ..Single pole single throw
  24      .Plural (e.g., data bus)
  25      .Movable coupler
  26      ..Slip ring
  27      .Particular coupling function
  28      ..Coupling between modes in a waveguide or fiber
  29      ...Mode strippers
  30      ..Evanescent wave coupling
  31      .Input/output coupler
  32      ..Coupling light through a waveguide bend or loop
  33      ..Lens
  34      ...Rod type
  35      ...Spherical
  36      ..Prism
  37      ..Grating
  38      ..End fire
  39      .Particular coupling structure
  40      ..Electrodes on or near the coupling region
  41      ...Directional coupler
  42      ..Directional coupler
  43      ..Tapered coupler
  44      .."T" coupler or duplex coupler
  45      .."Y" coupler
  46      ..Star coupler
  47      ..Multiport coupler using reflective surface
  48      ..Access couplers, power tappers, or power dividers
  49      ..Fiber to thin film devices
  50      ..Waveguide to waveguide
  51      .Permanently fixed couplerr
  52      .With alignment device
  53      WITH DISENGAGABLE MECHANICAL CONNECTOR
  54      .Structure surrounding optical fiber bundle-to-bundle
            connection
  55      .Structure surrounding optical fiber-to-fiber connection
  56      ..Multi-part (e.g., two pieces screwed together or bayonet
             latched)
  57      ...Magnetically actuated
  58      ...With additional structure at or immediately surrounding each
              optical fiber end face
  59      ....Plural fiber-to-fiber connections
  60      ....Fiber end held in ferrule
  61      .....Lens-shaped ferrule
  62      .....Compressively fixed (e.g., chuck, collet, crimp, set
                screws, etc.)
  63      .....Plate-type holding structure (e.g., jewel)
  64      .....Plural rods or balls structure
  65      .....Groove-type holding structure
  66      .....Tube-type holding structure
  67      ......Eccentric arrangement
  68      ......Capillary tubes
  69      ...With additional structure rearward of fiber joint to secure
              additional cable layers
  70      ..With additional structure at or immediately surrounding each
             optical fiber end face
  71      ...Plural fiber-to-fiber connections
  72      ...Fiber end held in ferrule
  73      ..With additional optical element between facing fiber ends
  74      ...Lens
  75      ..With additional nonoptical structure
  76      .Optical fiber/optical fiber cable termination structure
  77      ..At or immediately surrounding an optical fiber end face
  78      ...Fiber end held in ferrule
  79      ....Lens-shaped ferrule
  80      ....Adhesively fixed
  81      ....Compressively fixed (chuck, collet, crimp, set screw, etc.)
  82      ....Plural rods or balls structure
  83      ....Groove-type holding structure
  84      ....Tube-type holding structure
  85      ....Fiber/ferrule further processed (grinding, polishing, etc.)
  86      ..Structure rearward of optical fiber end face to secure
             additional fiber or cable layers
  87      ...Having at least one layer compressively fixed (e.g., crimp,
              tightening screws, etc.)
  88      .Optical fiber to a nonfiber optical device connector
  89      ..Plural fiber/device connections
  90      ..Fiber adjustable relative to device
  91      ...Fiber permanently fixed after adjustment
  92      ..With housing
  93      ...Including lens
  94      ...Sealed from environment
  95      WITH SPLICE (PERMANENT CONNECTION)
  96      .Fusion splicing
  97      .Alignment of fiber ends prior to splicing
  98      ..End-to-end (butt) coupling
  99      .Including splice joint reinforcement
  100     OPTICAL TRANSMISSION CABLE
  101     .With electrical conductor in the same cablee
  102     .Tightly confined (i.e., fiber tightly held inside the outer
            sheath)
  103     ..Having a central strength member
  104     ..Particular fiber orientation (e.g., helically wound, etc.)
  105     ..Compartmentalized
  106     ..Plural unit type (plural complete cables within a single
             outside sheath)
  107     ..With armoring
  108     ...Prestressed
  109     .Loose tube type
  110     ..Compartmentalized
  111     ..Particular fiber orientation
  112     ..Plural unit type
  113     ..With strength member
  114     .Ribbon cable
  115     OPTICAL FIBER BUNDLE
  116     .Imaging (i.e., with coherent fiber structure and includes
            shaping, enhancing, and correcting)
  117     ..For fiber scope (endoscope)
  118     ...With manipulator
  119     ..With lens or mirror
  120     .Fiber bundle plate
  121     .Transition between geometric shapes
  122     HAVING NONLINEAR PROPERTY
  123     OPTICAL FIBER WAVEGUIDE WITH CLADDING
  124     .With graded index core or cladding
  125     .Utilizing nonsolid core or cladding
  126     .Utilizing multiple core or cladding
  127     ..Concentric
  128     ...Where the second or further layer is a coating
  129     PLANAR OPTICAL WAVEGUIDE
  130     .Thin film optical waveguide
  131     ..Multilayer structure (mixture)
  132     ..Channel waveguide
  133     OPTICAL IMAGING TUNNEL
  134     ACCESSORIES
  135     .Splice box and surplus fiber storage/trays/organizers/
            carriers
  136     .External retainer/clamp
  137     ..Fiber holder (i.e., for single fiber or holding multiple
             single fibers together)
  138     .Bushing structure (e.g., penetrator)
  139     .Plug/termination device
  140     .Attenuator
  141     HAVING PARTICULAR OPTICAL CHARACTERISTIC MODIFYING CHEMICAL
           COMPOSITION
  142     .Of waveguide core
  143     ..Organic
  144     .Of waveguide cladding
  145     ..Organic
  146     NONCYCLINDRICAL OR NONPLANAR SHAPED WAVEGUIDE
  147     MISCELLANEOUS
  *       ******************************
  *       CROSS-REFERENCE ART COLLECTIONS
  *       ******************************
  900     SOLAR COLLECTOR OR TRANSMITTER
  901     ILLUMINATING OR DISPLAY APPARATUS
  902     NONBUNDLE FIBERSCOPE DEVICESS