Patent Classification Explorer PCE

DIFF Main Group

C01G 28/00

Compounds of arsenic

Introduced: January 1980

CPC subdivides this area 6x more granularly than IPC with 5 additional codes.

5 codes are CPC-only extensions.

IPC defines codes here since 1980.

Child Classifications

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C01G 28/001 CPC only CPC only
C01G 28/002 +1 CPC CPC only CPC only
C01G 28/005 CPC only CPC only
C01G 28/007 CPC only CPC only
C01G 28/008 CPC only CPC only
C01G 28/02 Arsenates; Arsenites since 1980 +2 CPC IPC+CPC Available in IPC and CPC