Symbol Origin— Symbols and Dates established


Last updated
Wednesday December 31, 2025
Maintained by
OIPC/Classification Standards and Development

The following is a list of all symbols which were added to the CPC Scheme. If available, the corresponding Project information is provided for the symbol. Please refer to the CPC Notices of Changes for additional information regarding changes to the Scheme, Definition, and Concordance.

Refer to the List of Deleted Symbols for all symbols which were added to the Scheme.

Note: In exceptional circumstances, symbol numbers may have been reused.


Version: 2026.01

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Symbol Date Established Project / NoC
A61L 2/1012026.01RP12830 / 1853
A61L 2/1022026.01RP12830 / 1853
A61L 2/1042026.01RP12830 / 1853
A61L 2/1082026.01RP12830 / 1853
A61L 2103/002026.01RP12830 / 1853
A61L 2103/052026.01RP12830 / 1853
A61L 2103/062026.01RP12830 / 1853
A61L 2103/072026.01RP12830 / 1853
A61L 2103/092026.01RP12830 / 1853
A61L 2103/102026.01RP12830 / 1853
A61L 2103/152026.01RP12830 / 1853
A61L 2103/202026.01RP12830 / 1853
A61L 2103/232026.01RP12830 / 1853
A61L 2103/252026.01RP12830 / 1853
A61L 2103/302026.01RP12830 / 1853
A61L 2103/352026.01RP12830 / 1853
A61L 2103/402026.01RP12830 / 1853
A61L 2103/452026.01RP12830 / 1853
A61L 2103/502026.01RP12830 / 1853
A61L 2103/552026.01RP12830 / 1853
A61L 2103/602026.01RP12830 / 1853
A61L 2103/652026.01RP12830 / 1853
A61L 2103/702026.01RP12830 / 1853
A61L 2103/752026.01RP12830 / 1853
A61L 2103/802026.01RP12830 / 1853
A61L 2103/852026.01RP12830 / 1853
A61L 2103/902026.01RP12830 / 1853
A61L 2103/952026.01RP12830 / 1853
A61L 2103/972026.01RP12830 / 1853
C01B 3/00182026.01RP12725 / 1817
C01B 3/0462026.01RP12725 / 1817
C01B 3/1032026.01RP12725 / 1817
C01B 3/32312026.01RP12725 / 1817
C07K 16/1022026.01RP12806 / 1844
C07K 16/1042026.01RP12806 / 1844
C07K 16/1062026.01RP12806 / 1844
C07K 16/1082026.01RP12806 / 1844
C07K 16/112026.01RP12806 / 1844
C07K 16/1122026.01RP12806 / 1844
C07K 16/1142026.01RP12806 / 1844
C07K 16/11432026.01RP12806 / 1844
C07K 16/11452026.01RP12806 / 1844
C07K 16/11472026.01RP12806 / 1844
C07K 16/1162026.01RP12806 / 1844
C07K 16/1182026.01RP12806 / 1844
C09K 2111/002026.01RP12808 / 1845
C09K 2113/002026.01RP12808 / 1845
F26B 21/202026.01RP12727 / 1840
F26B 21/2022026.01RP12727 / 1840
F26B 21/2042026.01RP12727 / 1840
F26B 21/2062026.01RP12727 / 1840
F26B 21/2082026.01RP12727 / 1840
F26B 21/252026.01RP12727 / 1840
F26B 21/302026.01RP12727 / 1840
F26B 21/332026.01RP12727 / 1840
F26B 21/3312026.01RP12727 / 1840
F26B 21/3332026.01RP12727 / 1840
F26B 21/352026.01RP12727 / 1840
F26B 21/372026.01RP12727 / 1840
F26B 21/402026.01RP12727 / 1840
F26B 21/452026.01RP12727 / 1840
F26B 21/4522026.01RP12727 / 1840
F26B 21/4712026.01RP12727 / 1840
F26B 21/502026.01RP12727 / 1840
F26B 21/552026.01RP12727 / 1840
G01N 33/5752026.01RP12839 / 1849
G01N 33/575052026.01RP12839 / 1849
G01N 33/57512026.01RP12839 / 1849
G01N 33/575152026.01RP12839 / 1849
G01N 33/57522026.01RP12839 / 1849
G01N 33/575252026.01RP12839 / 1849
G01N 33/57532026.01RP12839 / 1849
G01N 33/575352026.01RP12839 / 1849
G01N 33/57542026.01RP12839 / 1849
G01N 33/575452026.01RP12839 / 1849
G01N 33/57552026.01RP12839 / 1849
G01N 33/575552026.01RP12839 / 1849
G01N 33/575572026.01RP12839 / 1849
G01N 33/57562026.01RP12839 / 1849
G01N 33/575652026.01RP12839 / 1849
G01N 33/57572026.01RP12839 / 1849
G01N 33/575752026.01RP12839 / 1849
G01N 33/57582026.01RP12839 / 1849
G01N 33/575852026.01RP12839 / 1849
G01N 33/57592026.01RP12839 / 1849
G01N 33/575952026.01RP12839 / 1849
G06G 7/6232026.01RP12813 / 1838
G06G 7/6272026.01RP12813 / 1838
G06Q 10/402026.01RP12814 / 1846
G06Q 10/422026.01RP12814 / 1846
G06Q 10/442026.01RP12814 / 1846
G06Q 10/462026.01RP12814 / 1846
G06Q 10/482026.01RP12814 / 1846
G06T 11/102026.01RP12802 / 1851
G06T 11/232026.01RP12802 / 1851
G06T 11/262026.01RP12802 / 1851
G06T 11/652026.01RP12802 / 1851
G06T 12/002026.01RP12802 / 1851
G06T 12/102026.01RP12802 / 1851
G06T 12/202026.01RP12802 / 1851