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Scheme
Definition
CPC-to-IPC
Compilation of Changes
Recent Changes List
CPC to IPC Concordance for Subclass
A
23B
Printable Version [PDF]
Version:
2026.08
CPC Group
IPC Group
CPC Group
IPC Group
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A
23B
11/1403
A
23
B
11/14
open_in_new
A
23B
11/145
A
23
B
11/145
open_in_new
A
23B
11/1455
A
23
B
11/145
open_in_new
A
23B
11/16
A
23
B
11/16
open_in_new
A
23B
11/162
A
23
B
11/16
open_in_new
A
23B
11/164
A
23
B
11/16
open_in_new
A
23B
11/18
A
23
B
11/18
open_in_new
A
23B
11/182
A
23
B
11/18
open_in_new
A
23B
11/20
A
23
B
11/20
open_in_new
A
23B
11/22
A
23
B
11/22
open_in_new
A
23B
11/23
A
23
B
11/23
open_in_new
A
23B
11/233
A
23
B
11/23
open_in_new
A
23B
11/25
A
23
B
11/25
open_in_new
A
23B
11/253
A
23
B
11/25
open_in_new
A
23B
11/27
A
23
B
11/27
open_in_new
A
23B
11/29
A
23
B
11/29
open_in_new
A
23B
11/293
A
23
B
11/29
open_in_new
A
23B
11/295
A
23
B
11/29
open_in_new
A
23B
11/30
A
23
B
11/30
open_in_new
A
23B
11/302
A
23
B
11/30
open_in_new
A
23B
11/35
A
23
B
11/35
open_in_new
A
23B
11/40
A
23
B
11/40
open_in_new
A
23B
11/45
A
23
B
11/45
open_in_new
A
23B
11/50
A
23
B
11/50
open_in_new
A
23B
11/55
A
23
B
11/55
open_in_new
A
23B
11/60
A
23
B
11/60
open_in_new
A
23B
11/602
A
23
B
11/60
open_in_new
A
23B
11/604
A
23
B
11/60
open_in_new
A
23B
11/65
A
23
B
11/65
open_in_new
A
23B
11/652
A
23
B
11/65
open_in_new
A
23B
11/67
A
23
B
11/67
open_in_new
A
23B
11/70
A
23
B
11/70
open_in_new
A
23B
11/703
A
23
B
11/70
open_in_new
A
23B
11/75
A
23
B
11/75
open_in_new
A
23B
11/753
A
23
B
11/75
open_in_new
A
23B
11/80
A
23
B
11/80
open_in_new
A
23B
11/82
A
23
B
11/82
open_in_new
A
23B
11/823
A
23
B
11/82
open_in_new
A
23B
11/825
A
23
B
11/82
open_in_new
A
23B
11/84
A
23
B
11/84
open_in_new
A
23B
11/86
A
23
B
11/86
open_in_new
A
23B
11/87
A
23
B
11/87
open_in_new
A
23B
11/88
A
23
B
11/88
open_in_new
A
23B
20/00
A
23
B
20/00
open_in_new
A
23B
20/10
A
23
B
20/10
open_in_new
A
23B
20/30
A
23
B
20/30
open_in_new
A
23B
40/00
A
23
B
40/00
open_in_new
A
23B
40/10
A
23
B
40/10
open_in_new
A
23B
40/30
A
23
B
40/30
open_in_new
A
23B
40/50
A
23
B
40/50
open_in_new
A
23B
40/60
A
23
B
40/60
open_in_new
A
23B
45/00
A
23
B
45/00
open_in_new
A
23B
45/10
A
23
B
45/10
open_in_new
A
23B
45/30
A
23
B
45/30
open_in_new
A
23B
45/50
A
23
B
45/50
open_in_new
A
23B
45/70
A
23
B
45/70
open_in_new
A
23B
70/00
A
23
B
70/00
open_in_new
A
23B
70/10
A
23
B
70/10
open_in_new
A
23B
70/20
A
23
B
70/20
open_in_new
A
23B
70/30
A
23
B
70/30
open_in_new
A
23B
70/35
A
23
B
70/35
open_in_new
A
23B
70/50
A
23
B
70/50
open_in_new
A
23B
75/00
A
23
B
75/00
open_in_new
A
23B
75/10
A
23
B
75/10
open_in_new
A
23B
80/00
A
23
B
80/00
open_in_new
A
23B
85/00
A
23
B
85/00
open_in_new
A
23B
85/10
A
23
B
85/10
open_in_new
A
23B
90/00
A
23
B
90/00
open_in_new
A
23B
90/10
A
23
B
90/10
open_in_new
A
23B
99/00
A
23
B
99/00
open_in_new
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Last updated on:
Friday July 31, 2026
Published on:
Friday July 31, 2026
Owned by:
Office of International Patent Cooperation