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PDF
Scheme
Definition
CPC-to-IPC
Compilation of Changes
Recent Changes List
CPC to IPC Concordance for Subclass
C
12C
Printable Version [PDF]
Version:
2026.08
CPC Group
IPC Group
CPC Group
IPC Group
C
12C
1/00
C
12
C
1/00
open_in_new
C
12C
1/02
C
12
C
1/02
open_in_new
C
12C
1/027
C
12
C
1/027
open_in_new
C
12C
1/0275
C
12
C
1/027
open_in_new
C
12C
1/033
C
12
C
1/033
open_in_new
C
12C
1/047
C
12
C
1/047
open_in_new
C
12C
1/053
C
12
C
1/053
open_in_new
C
12C
1/067
C
12
C
1/067
open_in_new
C
12C
1/073
C
12
C
1/073
open_in_new
C
12C
1/10
C
12
C
1/10
open_in_new
C
12C
1/12
C
12
C
1/12
open_in_new
C
12C
1/125
C
12
C
1/125
open_in_new
C
12C
1/13
C
12
C
1/13
open_in_new
C
12C
1/135
C
12
C
1/135
open_in_new
C
12C
1/15
C
12
C
1/15
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C
12C
1/16
C
12
C
1/16
open_in_new
C
12C
1/18
C
12
C
1/18
open_in_new
C
12C
3/00
C
12
C
3/00
open_in_new
C
12C
3/02
C
12
C
3/02
open_in_new
C
12C
3/04
C
12
C
3/04
open_in_new
C
12C
3/06
C
12
C
3/06
open_in_new
C
12C
3/08
C
12
C
3/08
open_in_new
C
12C
3/085
C
12
C
3/08
open_in_new
C
12C
3/10
C
12
C
3/10
open_in_new
C
12C
3/12
C
12
C
3/12
open_in_new
C
12C
5/00
C
12
C
5/00
open_in_new
C
12C
5/002
C
12
C
5/00
open_in_new
C
12C
5/004
C
12
C
5/00
open_in_new
C
12C
5/006
C
12
C
5/00
open_in_new
C
12C
5/008
C
12
C
5/00
open_in_new
C
12C
5/02
C
12
C
5/02
open_in_new
C
12C
5/023
C
12
C
5/02
open_in_new
C
12C
5/026
C
12
C
5/02
open_in_new
C
12C
5/04
C
12
C
5/04
open_in_new
C
12C
7/00
C
12
C
7/00
open_in_new
C
12C
7/01
C
12
C
7/01
open_in_new
C
12C
7/04
C
12
C
7/04
open_in_new
C
12C
7/042
C
12
C
7/04
open_in_new
C
12C
7/044
C
12
C
7/04
open_in_new
C
12C
7/047
C
12
C
7/047
open_in_new
C
12C
7/053
C
12
C
7/053
open_in_new
C
12C
7/06
C
12
C
7/06
open_in_new
C
12C
7/062
C
12
C
7/06
open_in_new
C
12C
7/065
C
12
C
7/06
open_in_new
C
12C
7/067
C
12
C
7/06
open_in_new
C
12C
7/14
C
12
C
7/14
open_in_new
C
12C
7/16
C
12
C
7/16
open_in_new
C
12C
7/161
C
12
C
7/16
open_in_new
C
12C
7/163
C
12
C
7/16
open_in_new
C
12C
7/165
C
12
C
7/165
open_in_new
C
12C
7/17
C
12
C
7/17
open_in_new
C
12C
7/175
C
12
C
7/175
open_in_new
C
12C
7/20
C
12
C
7/20
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C
12C
7/205
C
12
C
7/20
open_in_new
C
12C
7/22
C
12
C
7/22
open_in_new
C
12C
7/24
C
12
C
7/24
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C
12C
7/26
C
12
C
7/26
open_in_new
C
12C
7/28
C
12
C
7/28
open_in_new
C
12C
7/282
C
12
C
7/28
open_in_new
C
12C
7/285
C
12
C
7/28
open_in_new
C
12C
7/287
C
12
C
7/28
open_in_new
C
12C
9/00
C
12
C
3/00
open_in_new
C
12C
9/02
C
12
C
3/00
open_in_new
C
12C
9/025
C
12
C
3/00
open_in_new
C
12C
11/00
C
12
C
11/00
open_in_new
C
12C
11/003
C
12
C
11/00
open_in_new
C
12C
11/006
C
12
C
11/00
open_in_new
C
12C
11/02
C
12
C
11/02
open_in_new
C
12C
11/06
C
12
C
11/06
open_in_new
C
12C
11/07
C
12
C
11/07
open_in_new
C
12C
11/075
C
12
C
11/07
open_in_new
C
12C
11/09
C
12
C
11/09
open_in_new
C
12C
11/11
C
12
C
11/11
open_in_new
C
12C
12/00
C
12
C
12/00
open_in_new
C
12C
12/002
C
12
C
12/00
open_in_new
C
12C
12/004
C
12
C
12/00
open_in_new
C
12C
12/006
C
12
C
12/00
open_in_new
C
12C
12/008
C
12
C
12/00
open_in_new
C
12C
12/02
C
12
C
12/02
open_in_new
C
12C
12/04
C
12
C
12/04
open_in_new
C
12C
13/00
C
12
C
13/00
open_in_new
C
12C
13/02
C
12
C
13/02
open_in_new
C
12C
13/025
C
12
C
13/02
open_in_new
C
12C
13/06
C
12
C
13/06
open_in_new
C
12C
13/08
C
12
C
13/08
open_in_new
C
12C
13/10
C
12
C
13/10
open_in_new
C
12C
2200/00
-
C
12C
2200/01
-
C
12C
2200/05
-
C
12C
2200/31
-
C
12C
2200/35
-
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Last updated on:
Friday July 31, 2026
Published on:
Friday July 31, 2026
Owned by:
Office of International Patent Cooperation