Patent Classification Explorer PCE

DIFF Main Group

C22C 19/00

Alloys based on nickel or cobalt

Introduced: September 1968

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

3 codes are CPC-only extensions.

IPC defines codes here since 1974.

Child Classifications

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C22C 19/002 CPC only CPC only
C22C 19/005 CPC only CPC only
C22C 19/007 CPC only CPC only
C22C 19/03 based on nickel since 1974 IPC+CPC Available in IPC and CPC
C22C 19/07 based on cobalt since 1974 IPC+CPC Available in IPC and CPC