CPC Main Group
C12Y 301/00 Hydrolases acting on ester bonds (3.1)
Filing statistics
CPC C12Y 301/00 belongs to the parent subclass C12Y, which recorded 144,590 patent applications worldwide between 2013 and 2023. Annual filings grew from 9,773 in 2013 to 11,938 in 2023 (+22%), peaking at 15,970 applications in 2021. The most active applicants in class C12 are HARVARD UNIVERSITY (8,321 applications), CHINESE ACADEMY OF SCIENCES (7,486 applications) and UNIVERSITY OF CALIFORNIA (7,320 applications).
Source: EPO PATSTAT, worldwide filings
20 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- C12Y 301/01 Carboxylic ester hydrolases (3.1.1)
- C12Y 301/02 Thioester hydrolases (3.1.2)
- C12Y 301/03 Phosphoric monoester hydrolases (3.1.3)
- C12Y 301/04 Phosphoric diester hydrolases (3.1.4)
- C12Y 301/05 Triphosphoric monoester hydrolases (3.1.5)
- C12Y 301/06 Sulfuric ester hydrolases (3.1.6)
- C12Y 301/07 Diphosphoric monoester hydrolases (3.1.7)
- C12Y 301/08 Phosphoric triester hydrolases (3.1.8)
- C12Y 301/11 Exodeoxyribonucleases producing 5'-phosphomonoesters (3.1.11)
- C12Y 301/13 Exoribonucleases producing 5'-phosphomonoesters (3.1.13)
- C12Y 301/14 Exoribonucleases producing 3'-phosphomonoesters (3.1.14)
- C12Y 301/15 Exonucleases active with either ribo- or deoxyribonucleic acids and producing 5'-phosphomonoesters (3.1.15)
- C12Y 301/16 Exonucleases active with either ribo- or deoxyribonucleic acids and producing 3'-phosphomonoesters (3.16)
- C12Y 301/21 Endodeoxyribonucleases producing 5'-phosphomonoesters (3.1.21)
- C12Y 301/22 Endodeoxyribonucleases producing 3'-phosphomonoesters (3.1.22)
- C12Y 301/25 Site-specific endodeoxyribonucleases specific for altered bases (3.1.25)
- C12Y 301/26 Endoribonucleases producing 5'-phosphomonoesters (3.1.26)
- C12Y 301/27 Endoribonucleases producing 3'-phosphomonoesters (3.1.27)
- C12Y 301/30 Endoribonucleases active with either ribo- or deoxyribonucleic acids and producing 5'-phosphomonoesters (3.1.30)
- C12Y 301/31 Endoribonucleases active with either ribo- or deoxyribonucleic acids and producing 3'-phosphomonoesters (3.1.31)
Top Applicants
Top 10 applicants by patent filingsfor class C12, 2013–2023, worldwide · Source: EPO PATSTAT
- HARVARD UNIVERSITY US 8,321
- CHINESE ACADEMY OF SCIENCES 7,486
- UNIVERSITY OF CALIFORNIA US 7,320
- REGENERON PHARMACEUTICALS US 5,003
- INSERM (INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERCHE MEDICALE) FR 4,292
- UNIVERSITY OF PENNSYLVANIA US 4,213
- CNRS (CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE) FR 4,113
- JIANGNAN UNIVERSITY 3,961
- ROCHE CH 3,792
- ILLUMINA US 3,692