CPC Subgroup
C12Y 305/03 in linear amidines (3.5.3)
Full Title
Hydrolases acting on carbon-nitrogen bonds, other than peptide bonds (3.5) > in linear amidines (3.5.3)
Filing statistics
CPC C12Y 305/03 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
23 direct subcodes
Child Classifications
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- C12Y 305/03001 Arginase (3.5.3.1)
- C12Y 305/03002 Guanidinoacetase (3.5.3.2)
- C12Y 305/03003 Creatinase (3.5.3.3), i.e. creatine amidinohydrolase
- C12Y 305/03004 Allantoicase (3.5.3.4)
- C12Y 305/03005 Formimidoylaspartate deiminase (3.5.3.5)
- C12Y 305/03006 Arginine deiminase (3.5.3.6)
- C12Y 305/03007 Guanidinobutyrase (3.5.3.7)
- C12Y 305/03008 Formimidoylglutamase (3.5.3.8)
- C12Y 305/03009 Allantoate deiminase (3.5.3.9)
- C12Y 305/0301 D-Arginase (3.5.3.10)
- C12Y 305/03011 Agmatinase (3.5.3.11)
- C12Y 305/03012 Agmatine deiminase (3.5.3.12)
- C12Y 305/03013 Formimidoylglutamate deiminase (3.5.3.13)
- C12Y 305/03014 Amidinoaspartase (3.5.3.14)
- C12Y 305/03015 Protein-arginine deiminase (3.5.3.15)
- C12Y 305/03016 Methylguanidinase (3.5.3.16)
- C12Y 305/03017 Guanidinopropionase (3.5.3.17)
- C12Y 305/03018 Dimethylargininase (3.5.3.18)
- C12Y 305/03019 Ureidoglycolate hydrolase (3.5.3.19)
- C12Y 305/0302 Diguanidinobutanase (3.5.3.20)
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