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PCE
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Search for IPC and CPC classification codes or keywords
DIFF Subgroup
H01G 9/042

characterised by the material (H01G11/22 takes precedence)

Introduced: January 1995

Title

Titles differ between systems:

IPC: characterised by the material

CPC: characterised by the material (H01G11/22 takes precedence)

Full Title

Full titles differ between systems:

IPC:

Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture > Details > Electrodes > characterised by the material

CPC:

Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture > Details > Electrodes > characterised by the material (H01G11/22 takes precedence)

Of 2 combined children, 1 exist in both systems.

1 codes are CPC-only extensions.

IPC defines codes here since 1995.

Child Classifications

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  • H01G 9/0425 CPC only CPC only
  • H01G 9/045 based on aluminium since 1995 IPC+CPC Available in IPC and CPC