Patent Classification Explorer PCE

DIFF Subgroup

H04J 14/02

Wavelength-division multiplex systems

Introduced: January 1990

Full Title

Optical multiplex systems > Wavelength-division multiplex systems

Of 10 combined children, 0 exist in both systems.

10 codes are CPC-only extensions.

Child Classifications

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H04J 14/0201 +2 CPC CPC only CPC only
H04J 14/0221 +5 CPC CPC only CPC only
H04J 14/0223 CPC only CPC only
H04J 14/0224 CPC only CPC only
H04J 14/0226 CPC only CPC only
H04J 14/0227 +4 CPC CPC only CPC only
H04J 14/0278 +7 CPC CPC only CPC only
H04J 14/0287 +3 CPC CPC only CPC only
H04J 14/0298 CPC only CPC only
H04J 14/03 +2 CPC CPC only CPC only