Hydraulic cements (calcium sulfate cements C04B11/00)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Hydraulic cements

CPC: Hydraulic cements (calcium sulfate cements C04B11/00)

Full titles differ between systems:

IPC:

Hydraulic cements

CPC:

Hydraulic cements (calcium sulfate cements C04B11/00)

Of 11 combined children, 9 exist in both systems.

2 codes are CPC-only extensions.

3 shared codes have differing titles between IPC and CPC.

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C04B 7/003 CPC only CPC only
C04B 7/006 CPC only CPC only
C04B 7/02 Portland cement IPC+CPC Available in IPC and CPC
C04B 7/12 Natural pozzuolanas; Natural pozzuolana cements; IPC+CPC Available in IPC and CPC
C04B 7/14 Cements containing slag (slags from waste incineration C04B7/28) IPC+CPC Available in IPC and CPC
C04B 7/22 Iron ore cements IPC+CPC Available in IPC and CPC
C04B 7/24 Cements from oil shales, residues or waste other than slag +2 CPC IPC+CPC Available in IPC and CPC
C04B 7/32 Aluminous cements +2 CPC IPC+CPC Available in IPC and CPC
C04B 7/34 Hydraulic lime cements; Roman cements IPC+CPC Available in IPC and CPC
C04B 7/345 Hydraulic cements not provided for in one of the groups C04B7/02 - C04B7/34 since 1985 +2 CPC IPC+CPC Available in IPC and CPC
C04B 7/36 Manufacture of hydraulic cements in general +3 CPC IPC+CPC Available in IPC and CPC

Class C04,2013–2023, worldwide · Source: EPO PATSTAT

Class C04,2013–2023, worldwide · Source: EPO PATSTAT