CPC Subgroup
C12Y 402/01 Hydro-lyases (4.2.1)
Full Title
Carbon-oxygen lyases (4.2) > Hydro-lyases (4.2.1)
Filing statistics
CPC C12Y 402/01 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
117 direct subcodes
Child Classifications
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- C12Y 402/01001 Carbonate dehydratase (4.2.1.1), i.e. carbonic anhydrase
- C12Y 402/01002 Fumarate hydratase (4.2.1.2)
- C12Y 402/01003 Aconitate hydratase (4.2.1.3)
- C12Y 402/01004 Citrate dehydratase (4.2.1.4)
- C12Y 402/01005 Arabinonate dehydratase (4.2.1.5)
- C12Y 402/01006 Galactonate dehydratase (4.2.1.6)
- C12Y 402/01007 Altronate dehydratase (4.2.1.7)
- C12Y 402/01008 Mannonate dehydratase (4.2.1.8)
- C12Y 402/01009 Dihydroxy-acid dehydratase (4.2.1.9), i.e. acetohydroxyacid dehydratase
- C12Y 402/0101 3-Dehydroquinate dehydratase (4.2.1.10)
- C12Y 402/01011 Phosphopyruvate hydratase (4.2.1.11), i.e. enolase
- C12Y 402/01012 Phosphogluconate dehydratase (4.2.1.12)
- C12Y 402/01017 Enoyl-CoA hydratase (4.2.1.17), i.e. crotonase
- C12Y 402/01018 Methylglutaconyl-CoA hydratase (4.2.1.18)
- C12Y 402/01019 Imidazoleglycerol-phosphate dehydratase (4.2.1.19)
- C12Y 402/0102 Tryptophan synthase (4.2.1.20)
- C12Y 402/01022 Cystathionine beta-synthase (4.2.1.22)
- C12Y 402/01024 Porphobilinogen synthase (4.2.1.24)
- C12Y 402/01025 L-Arabinonate dehydratase (4.2.1.25)
- C12Y 402/01027 Acetylenecarboxylate hydratase (4.2.1.27)
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