Resistance welding; Severing by resistance heating

Introduced: September 1968

Of 16 combined children, 13 exist in both systems.

3 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

Child Classifications

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B23K 11/0006 CPC only CPC only
B23K 11/0013 CPC only CPC only
B23K 11/002 +6 CPC CPC only CPC only
B23K 11/02 Pressure butt welding IPC+CPC Available in IPC and CPC
B23K 11/04 Flash butt welding +2 CPC IPC+CPC Available in IPC and CPC
B23K 11/06 using roller electrodes +3 CPC IPC+CPC Available in IPC and CPC
B23K 11/08 Seam welding not restricted to one of the preceding subgroups +1 CPC IPC+CPC Available in IPC and CPC
B23K 11/10 Spot welding; Stitch welding +1 CPC IPC+CPC Available in IPC and CPC
B23K 11/14 Projection welding IPC+CPC Available in IPC and CPC
B23K 11/16 taking account of the properties of the material to be welded +1 CPC IPC+CPC Available in IPC and CPC
B23K 11/22 Severing by resistance heating IPC+CPC Available in IPC and CPC
B23K 11/24 Electric supply or control circuits therefor +2 CPC IPC+CPC Available in IPC and CPC
B23K 11/28 Portable welding equipment IPC+CPC Available in IPC and CPC
B23K 11/30 Features relating to electrodes +8 CPC IPC+CPC Available in IPC and CPC
B23K 11/34 Preliminary treatment since 1980 IPC+CPC Available in IPC and CPC
B23K 11/36 Auxiliary equipment (B23K11/31 takes precedence) since 1980 +1 CPC IPC+CPC Available in IPC and CPC

Class B23,2013–2023, worldwide · Source: EPO PATSTAT

Class B23,2013–2023, worldwide · Source: EPO PATSTAT