USPC Class Details

Description: 398 optical communications / 398 optical communications/(140) transmitter and receiver system (141) including optical waveguide (147) dispersion compensation (149) using equalizing filter (e.g., interferometer, grating)

Hierarchy/Derived subclasses

398 / 140

-> 141

-> 147

-> 149

uspto searches

Patent Apps in 398/149

Granted Patents in 398/149

Use the links above or do an advanced search in ppubs for:
(398/149.ccls.)

This will show what classes derive from the input. Ex: entering 43/42.24 shows the derived classes and the search that can be used to find patents or patent applications in those subclasses.

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