Microstructural systems;

Introduced: January 2000

Title

Titles differ between systems:

IPC: Microstructural systems

CPC: Microstructural systems;

Full titles differ between systems:

IPC:

Microstructural systems

CPC:

Microstructural systems;

CPC subdivides this area 4x more granularly than IPC with 6 additional codes.

6 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 2000.

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B81B 7/0003 CPC only CPC only
B81B 7/0006 CPC only CPC only
B81B 7/0009 +6 CPC CPC only CPC only
B81B 7/0032 +9 CPC CPC only CPC only
B81B 7/008 CPC only CPC only
B81B 7/0083 +2 CPC CPC only CPC only
B81B 7/02 containing distinct electrical or optical devices of particular relevance for their function, e.g. microelectro-mechanical systems [MEMS] (B81B7/04 takes precedence) since 2000 IPC+CPC Available in IPC and CPC
B81B 7/04 Networks or arrays of similar microstructural devices since 2000 IPC+CPC Available in IPC and CPC

Class B81,2013–2023, worldwide · Source: EPO PATSTAT

Class B81,2013–2023, worldwide · Source: EPO PATSTAT