wherein the electric light source controls the radiation-sensitive semiconductor devices, e.g. optocouplers

Introduced: January 2025

Full Title

Full titles differ between systems:

IPC:

Radiation-sensitive semiconductor devices covered by groups , or being structurally associated with electric light sources and electrically or optically coupled thereto > wherein the electric light source controls the radiation-sensitive semiconductor devices, e.g. optocouplers

CPC:

Radiation-sensitive semiconductor devices covered by groups H10F10/00, H10F19/00 or H10F30/00 being structurally associated with electric light sources and electrically or optically coupled thereto > wherein the electric light source controls the radiation-sensitive semiconductor devices, e.g. optocouplers

CPC subdivides this area 3x more granularly than IPC with 2 additional codes.

2 codes are CPC-only extensions.

IPC defines codes here since 2025.

Child Classifications

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H10F 55/205 +2 CPC CPC only CPC only
H10F 55/25 wherein the radiation-sensitive devices and the electric light source are all semiconductor devices since 2025 IPC+CPC Available in IPC and CPC
H10F 55/26 CPC only CPC only