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: 372
 Class Title: COHERENT LIGHT GENERATORS

Subclass  Subclass
Number    Title

  1       SUPERRADIANT LASER
  2       FREE ELECTRON LASER
  3       RAMAN LASER
  4       LONG WAVELENGTH (E.G., FAR INFRARED)
  5       SHORT WAVELENGTH LASER
  6       OPTICAL FIBER LASER
  7       THIN FILM LASER
  8       LASER LOGIC SYSTEM
  9       PARTICULAR BEAM CONTROL DEVICE
  10      .Q-switch
  11      ..Absorption type
  12      ..Electro-optic
  13      ..Acousto-optic
  14      ..Mechanical
  15      ...Rotating mirror
  16      ...Rotating prism
  17      ..Plural Q-switches
  18      .Mode locking
  19      .Mode discrimination
  20      .Tuning
  21      .Nonlinear device
  22      ..Frequency multiplying (e.g., harmonic generator)
  23      .Producing plural wavelength output
  24      .Scanning
  25      .Control of pulse characteristics
  26      .Modulation
  27      ..Polarization
  28      ..Frequency
  29      .Output stabilization
  30      ..Pulse
  31      ..Amplitude
  32      ..Frequency
  33      PARTICULAR OPERATING COMPENSATION MEANS
  34      PARTICULAR TEMPERATURE CONTROL
  35      .Liquid coolant
  36      .Heat sink
  37      HAVING AN APPLIED MAGNETIC FIELD
  38      WITH PARTICULAR COMPONENT CIRCUITRY
  39      PARTICULAR ACTIVE MEDIA
  40      .Amorphous (e.g., glass)
  41      .Insulating crystal
  42      ..Utilizing color centers
  43      .Semiconductor
  44      ..Injection
  45      ...Particular confinement layer
  46      ...Particular current control structure
  47      ....Transverse junction
  48      ....Channeled substrate
  49      ...Particular coating on facet
  50      ...Monolithic integrated
  51      .Liquid
  52      ..Chelatee
  53      ..Dye
  54      ..Particular structural features
  55      .Gas
  56      ..Metal vapor
  57      ..Excimer or exciplex
  58      ..With means for controlling gas flow
  59      ..Gas maintenance (e.g., purification, replenishment, etc.)
  60      ..Including a specified gas additive
  61      ..Discharge tube feature
  62      ...Segmented
  63      ...Backflow feature
  64      ...Waveguide
  65      ...Support
  66      .Active media with particular shape
  67      ..Disc-shaped
  68      .Plural active media or active media having plural dopants
  69      PARTICULAR PUMPING MEANS
  70      .Pumping with optical or radiant energy
  71      ..End-pumped laser
  72      ..Pump cavity
  73      ..High-energy particles
  74      ...Electron beam
  75      ..Semiconductor
  76      ..Plasma
  77      ..Exploding or combustible material
  78      ..Heat
  79      ..Solar
  80      ..Excited phosphor
  81      .Electrical
  82      ..Inductive or capactive excitation
  83      ..Transversely excited
  84      ...Traveling wave
  85      ..Glow discharge
  86      ..Having an auxiliary ionization means
  87      ..Having particular electrode structure
  88      ...Hollow electrode
  89      .Chemical
  90      .Gas dynamic
  91      .With depopulation of lower states
  92      PARTICULAR RESONANT CAVITY
  93      .Folded cavity
  94      ..Having a ring configuration
  95      .Unstable resonator
  96      .Distributed feedback
  97      .Plural cavities
  98      .Specified cavity component
  99      ..Reflector
  100     ..Prism
  101     ..Lens or lens system
  102     ..Grating
  103     ..Window, aperture, and mask
  104     ...Aerodynamic window
  105     ..Birefringent material
  106     ..Polarizer
  107     .Mirror support or alignment structure
  108     .Specified output coupling device
  109     MISCELLANEOUS
  *       *******************************
  *       CROSS-REFERENCE ART COLLECTIONS
  *       ******************************
  700     .Optical delay
  701     .Nozzle
  702     .Isotope
  703     .Optical isolater
  704     .Summary reference
  705     .Neat thing