CPC to IPC Concordance for Subclass B 04B

Version: 2026.08

CPC Group	IPC Group
B 04B 1/00	B 04 B 1/00
B 04B 1/02	B 04 B 1/02
B 04B 1/04	B 04 B 1/04
B 04B 1/06	B 04 B 1/06
B 04B 1/08	B 04 B 1/08
B 04B 1/10	B 04 B 1/10
B 04B 1/12	B 04 B 1/12
B 04B 1/14	B 04 B 1/14
B 04B 1/16	B 04 B 1/16
B 04B 1/18	B 04 B 1/18
B 04B 1/20	B 04 B 1/20
B 04B 1/2008	B 04 B 1/20
B 04B 1/2016	B 04 B 1/20
B 04B 2001/2025	B 04 B 1/20
B 04B 2001/2033	B 04 B 1/20
B 04B 2001/2041	B 04 B 1/20
B 04B 2001/205	B 04 B 1/20
B 04B 2001/2058	B 04 B 1/20
B 04B 2001/2066	B 04 B 1/20
B 04B 2001/2075	B 04 B 1/20
B 04B 2001/2083	B 04 B 1/20
B 04B 2001/2091	B 04 B 1/20
B 04B 3/00	B 04 B 3/00
B 04B 3/02	B 04 B 3/02
B 04B 3/025	B 04 B 3/02
B 04B 3/04	B 04 B 3/04
B 04B 3/06	B 04 B 3/06
B 04B 3/08	B 04 B 3/08
B 04B 5/00	B 04 B 5/00
B 04B 5/005	B 04 B 5/00
B 04B 5/02	B 04 B 5/02
B 04B 5/04	B 04 B 5/04
B 04B 5/0407	B 04 B 5/04
B 04B 5/0414	B 04 B 5/04
B 04B 5/0421	B 04 B 5/04
B 04B 5/0428	B 04 B 5/04
B 04B 2005/0435	B 04 B 5/04
B 04B 5/0442	B 04 B 5/04
B 04B 2005/045	B 04 B 5/04
B 04B 2005/0457	B 04 B 5/04
B 04B 2005/0464	B 04 B 5/04
B 04B 2005/0471	B 04 B 5/04
B 04B 2005/0478	B 04 B 5/04
B 04B 2005/0485	B 04 B 5/04
B 04B 2005/0492	B 04 B 5/04
B 04B 5/06	B 04 B 5/06
B 04B 5/08	B 04 B 5/08
B 04B 5/10	B 04 B 5/10
B 04B 2005/105	B 04 B 5/10
B 04B 5/12	B 04 B 5/12
B 04B 2005/125	B 04 B 5/12
B 04B 7/00	B 04 B 7/00
B 04B 2007/005	B 04 B 7/00
B 04B 7/02	B 04 B 7/02
B 04B 2007/025	B 04 B 7/02
B 04B 7/04	B 04 B 7/04
B 04B 7/06	B 04 B 7/06
B 04B 2007/065	B 04 B 7/06
B 04B 7/08	B 04 B 7/08
B 04B 7/085	B 04 B 7/08
B 04B 7/10	B 04 B 7/10
B 04B 7/12	B 04 B 7/12
B 04B 7/14	B 04 B 7/14
B 04B 7/16	B 04 B 7/16
B 04B 7/18	B 04 B 7/18
B 04B 9/00	B 04 B 9/00
B 04B 9/02	B 04 B 9/02
B 04B 9/04	B 04 B 9/04
B 04B 9/06	B 04 B 9/06
B 04B 9/08	B 04 B 9/08
B 04B 2009/085	B 04 B 9/08
B 04B 9/10	B 04 B 9/10
B 04B 9/12	B 04 B 9/12
B 04B 9/14	B 04 B 9/14
B 04B 2009/143	B 04 B 9/14
B 04B 9/146	B 04 B 9/14
B 04B 11/00	B 04 B 11/00
B 04B 11/02	B 04 B 11/02
B 04B 11/04	B 04 B 11/04
B 04B 11/043	B 04 B 11/04
B 04B 2011/046	B 04 B 11/04
B 04B 11/05	B 04 B 11/05
B 04B 11/06	B 04 B 11/06
B 04B 11/08	B 04 B 11/08
B 04B 11/082	B 04 B 11/08
B 04B 2011/084	B 04 B 11/08
B 04B 2011/086	B 04 B 11/08
B 04B 2011/088	B 04 B 11/08
B 04B 13/00	B 04 B 13/00
B 04B 13/003	B 04 B 13/00
B 04B 2013/006	B 04 B 13/00
B 04B 15/00	B 04 B 15/00
B 04B 15/02	B 04 B 15/02
B 04B 15/04	B 04 B 15/04
B 04B 15/06	B 04 B 15/06
B 04B 15/08	B 04 B 15/08
B 04B 15/10	B 04 B 15/10
B 04B 15/12	B 04 B 15/12

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CPC to IPC Concordance for Subclass B04B

CPC to IPC Concordance for Subclass B 04B