Skip header and go to main content
About us
Jobs
Contact us
Classification Resources
Classification
Revision & Reclassification
CPC
Compilation of Changes
Consolidate Revision Concordance List (RCL)
List of Deleted Symbols
Notice of Changes
Notice of Editorial Corrections
Active CPC Revision Projects
CPC Revision Pre-releases
Published Revision Projects
IPC
Revision & Reclassification Project Status
USPC
Classification Orders
Locarno
Revision & Reclassification Project Status
General Training
CPC
CPC Training
Guide to CPC
IPC
Guide to IPC
Guidelines for revision and for use of the IPC
FAQ
Strasbourg Agreement
USPC
Examiner Handbook
Handbook of Classification
Locarno
About Locarno Classification
FAQ
Locarno Agreement
Additional Resources
CPC
CPC Scheme
IPC
IPC Scheme
USPC
Class Titles
Index to USPC
Locarno
Locarno Classification
Other
Espacenet Patent Search
JPO Classification system – File Index (FI) and F-terms
WIPO Standards on Industrial Property Information and Documentation
Contacts
Classification Standards and Development
Contacts
Lookup Symbol
Scheme
Definition
Concordance
search
Search
Search CPC
search
Search
Quick Links:
PDF
Scheme
Definition
CPC-to-IPC
Compilation of Changes
Recent Changes List
CPC to IPC Concordance for Subclass
C
25B
Printable Version [PDF]
Version:
2026.08
CPC Group
IPC Group
CPC Group
IPC Group
C
25B
1/00
C
25
B
1/00
open_in_new
C
25B
1/01
C
25
B
1/01
open_in_new
C
25B
1/02
C
25
B
1/02
open_in_new
C
25B
1/04
C
25
B
1/04
open_in_new
C
25B
1/042
C
25
B
1/042
open_in_new
C
25B
1/044
C
25
B
1/044
open_in_new
C
25B
1/13
C
25
B
1/13
open_in_new
C
25B
1/135
C
25
B
1/135
open_in_new
C
25B
1/14
C
25
B
1/14
open_in_new
C
25B
1/16
C
25
B
1/16
open_in_new
C
25B
1/18
C
25
B
1/18
open_in_new
C
25B
1/20
C
25
B
1/20
open_in_new
C
25B
1/21
C
25
B
1/21
open_in_new
C
25B
1/22
C
25
B
1/22
open_in_new
C
25B
1/23
C
25
B
1/23
open_in_new
C
25B
1/24
C
25
B
1/24
open_in_new
C
25B
1/245
C
25
B
1/245
open_in_new
C
25B
1/26
C
25
B
1/26
open_in_new
C
25B
1/265
C
25
B
1/26
open_in_new
C
25B
1/27
C
25
B
1/27
open_in_new
C
25B
1/28
C
25
B
1/28
open_in_new
C
25B
1/29
C
25
B
1/29
open_in_new
C
25B
1/30
C
25
B
1/30
open_in_new
C
25B
1/32
C
25
B
1/32
open_in_new
C
25B
1/33
C
25
B
1/33
open_in_new
C
25B
1/34
C
25
B
1/34
open_in_new
C
25B
1/36
C
25
B
1/36
open_in_new
C
25B
1/42
C
25
B
1/42
open_in_new
C
25B
1/44
C
25
B
1/44
open_in_new
C
25B
1/46
C
25
B
1/46
open_in_new
C
25B
1/50
C
25
B
1/50
open_in_new
C
25B
1/55
C
25
B
1/55
open_in_new
C
25B
3/00
C
25
B
3/00
open_in_new
C
25B
3/01
C
25
B
3/01
open_in_new
C
25B
3/03
C
25
B
3/03
open_in_new
C
25B
3/05
C
25
B
3/05
open_in_new
C
25B
3/07
C
25
B
3/07
open_in_new
C
25B
3/09
C
25
B
3/09
open_in_new
C
25B
3/11
C
25
B
3/11
open_in_new
C
25B
3/13
C
25
B
3/13
open_in_new
C
25B
3/20
C
25
B
3/20
open_in_new
C
25B
3/21
C
25
B
3/21
open_in_new
C
25B
3/23
C
25
B
3/23
open_in_new
C
25B
3/25
C
25
B
3/25
open_in_new
C
25B
3/26
C
25
B
3/26
open_in_new
C
25B
3/27
C
25
B
3/27
open_in_new
C
25B
3/28
C
25
B
3/28
open_in_new
C
25B
3/29
C
25
B
3/29
open_in_new
C
25B
3/295
C
25
B
3/29
open_in_new
C
25B
5/00
C
25
B
5/00
open_in_new
C
25B
7/00
C
25
B
7/00
open_in_new
C
25B
9/00
C
25
B
9/00
open_in_new
C
25B
9/005
C
25
B
9/00
open_in_new
C
25B
9/01
C
25
B
9/01
open_in_new
C
25B
9/015
C
25
B
9/015
open_in_new
C
25B
9/05
C
25
B
9/05
open_in_new
C
25B
9/07
C
25
B
9/07
open_in_new
C
25B
9/09
C
25
B
9/09
open_in_new
C
25B
9/13
C
25
B
9/13
open_in_new
C
25B
9/15
C
25
B
9/15
open_in_new
C
25B
9/17
C
25
B
9/17
open_in_new
C
25B
9/19
C
25
B
9/19
open_in_new
C
25B
9/21
C
25
B
9/21
open_in_new
C
25B
9/23
C
25
B
9/23
open_in_new
C
25B
9/30
C
25
B
9/30
open_in_new
C
25B
9/303
C
25
B
9/30
open_in_new
C
25B
9/305
C
25
B
9/30
open_in_new
C
25B
9/40
C
25
B
9/40
open_in_new
C
25B
9/43
C
25
B
9/40
open_in_new
C
25B
9/47
C
25
B
9/40
open_in_new
C
25B
9/50
C
25
B
9/50
open_in_new
C
25B
9/60
C
25
B
9/60
open_in_new
C
25B
9/63
C
25
B
9/63
open_in_new
C
25B
9/65
C
25
B
9/65
open_in_new
C
25B
9/66
C
25
B
9/65
open_in_new
C
25B
9/67
C
25
B
9/67
open_in_new
C
25B
9/70
C
25
B
9/70
open_in_new
C
25B
9/73
C
25
B
9/73
open_in_new
C
25B
9/75
C
25
B
9/75
open_in_new
C
25B
9/77
C
25
B
9/77
open_in_new
C
25B
11/00
C
25
B
11/00
open_in_new
C
25B
11/02
C
25
B
11/02
open_in_new
C
25B
11/03
C
25
B
11/03
open_in_new
C
25B
11/031
C
25
B
11/031
open_in_new
C
25B
11/032
C
25
B
11/032
open_in_new
C
25B
11/033
C
25
B
11/033
open_in_new
C
25B
11/034
C
25
B
11/034
open_in_new
C
25B
11/036
C
25
B
11/036
open_in_new
C
25B
11/037
C
25
B
11/037
open_in_new
C
25B
11/04
C
25
B
11/04
open_in_new
C
25B
11/042
C
25
B
11/042
open_in_new
C
25B
11/043
C
25
B
11/043
open_in_new
C
25B
11/044
C
25
B
11/044
open_in_new
C
25B
11/045
C
25
B
11/045
open_in_new
C
25B
11/046
C
25
B
11/046
open_in_new
C
25B
11/047
C
25
B
11/047
open_in_new
C
25B
11/048
C
25
B
11/048
open_in_new
C
25B
11/049
C
25
B
11/049
open_in_new
C
25B
11/051
C
25
B
11/051
open_in_new
C
25B
11/052
C
25
B
11/052
open_in_new
C
25B
11/053
C
25
B
11/053
open_in_new
C
25B
11/054
C
25
B
11/054
open_in_new
C
25B
11/055
C
25
B
11/055
open_in_new
C
25B
11/056
C
25
B
11/056
open_in_new
C
25B
11/057
C
25
B
11/057
open_in_new
C
25B
11/059
C
25
B
11/059
open_in_new
C
25B
11/061
C
25
B
11/061
open_in_new
C
25B
11/063
C
25
B
11/063
open_in_new
C
25B
11/065
C
25
B
11/065
open_in_new
C
25B
11/067
C
25
B
11/067
open_in_new
C
25B
11/069
C
25
B
11/069
open_in_new
C
25B
11/071
C
25
B
11/071
open_in_new
C
25B
11/073
C
25
B
11/073
open_in_new
C
25B
11/075
C
25
B
11/075
open_in_new
C
25B
11/077
C
25
B
11/077
open_in_new
C
25B
11/0771
C
25
B
11/077
open_in_new
C
25B
11/0773
C
25
B
11/077
open_in_new
C
25B
11/0775
C
25
B
11/077
open_in_new
C
25B
11/079
C
25
B
11/079
open_in_new
C
25B
11/081
C
25
B
11/081
open_in_new
C
25B
11/083
C
25
B
11/083
open_in_new
C
25B
11/085
C
25
B
11/085
open_in_new
C
25B
11/087
C
25
B
11/087
open_in_new
C
25B
11/089
C
25
B
11/089
open_in_new
C
25B
11/091
C
25
B
11/091
open_in_new
C
25B
11/093
C
25
B
11/093
open_in_new
C
25B
11/095
C
25
B
11/095
open_in_new
C
25B
11/097
C
25
B
11/097
open_in_new
C
25B
13/00
C
25
B
13/00
open_in_new
C
25B
13/02
C
25
B
13/02
open_in_new
C
25B
13/04
C
25
B
13/04
open_in_new
C
25B
13/05
C
25
B
13/05
open_in_new
C
25B
13/06
C
25
B
13/06
open_in_new
C
25B
13/07
C
25
B
13/07
open_in_new
C
25B
13/08
C
25
B
13/08
open_in_new
C
25B
15/00
C
25
B
15/00
open_in_new
C
25B
15/02
C
25
B
15/02
open_in_new
C
25B
15/021
C
25
B
15/021
open_in_new
C
25B
15/023
C
25
B
15/023
open_in_new
C
25B
15/025
C
25
B
15/025
open_in_new
C
25B
15/027
C
25
B
15/027
open_in_new
C
25B
15/029
C
25
B
15/029
open_in_new
C
25B
15/031
C
25
B
15/031
open_in_new
C
25B
15/033
C
25
B
15/033
open_in_new
C
25B
15/04
C
25
B
15/04
open_in_new
C
25B
15/06
C
25
B
15/06
open_in_new
C
25B
15/08
C
25
B
15/08
open_in_new
C
25B
15/081
C
25
B
15/08
open_in_new
C
25B
15/083
C
25
B
15/08
open_in_new
C
25B
15/085
C
25
B
15/08
open_in_new
C
25B
15/087
C
25
B
15/08
open_in_new
share
Share this page
print
Print this page
Additional information
about this page
Additional information about this page
Last updated on:
Friday July 31, 2026
Published on:
Friday July 31, 2026
Owned by:
Office of International Patent Cooperation