Frequency selective two-port networks

Introduced: January 1980

Full Title

Multiple-port networks comprising only passive electrical elements as network components > Frequency selective two-port networks

CPC subdivides this area 2x more granularly than IPC with 8 additional codes.

8 codes are CPC-only extensions.

Note: 2 CPC extensions are marked as secondary classification only.

2 shared codes have differing titles between IPC and CPC.

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H03H 2007/013 2nd only CPC only CPC only
H03H 2007/0192 2nd only CPC only CPC only
H03H 7/0107 CPC only CPC only
H03H 7/0115 CPC only CPC only
H03H 7/0123 CPC only CPC only
H03H 7/0138 +1 CPC CPC only CPC only
H03H 7/0153 +1 CPC CPC only CPC only
H03H 7/03 comprising means for compensation of loss since 1980 IPC+CPC Available in IPC and CPC
H03H 7/06 including resistors (H03H7/075, H03H7/09, H03H7/12, H03H7/13 take precedence) IPC+CPC Available in IPC and CPC
H03H 7/075 Ladder networks, e.g. electric wave filters since 1980 IPC+CPC Available in IPC and CPC
H03H 7/09 Filters comprising mutual inductance since 1980 IPC+CPC Available in IPC and CPC
H03H 7/12 Bandpass or bandstop filters with adjustable bandwidth and fixed centre frequency (H03H7/09 takes precedence) IPC+CPC Available in IPC and CPC
H03H 7/13 using electro-optical elements since 1980 IPC+CPC Available in IPC and CPC
H03H 7/17 +3 CPC CPC only CPC only

Class H03,2013–2023, worldwide · Source: EPO PATSTAT

Class H03,2013–2023, worldwide · Source: EPO PATSTAT