CPC Subgroup
C12Y 303/02 Ether hydrolases (3.3.2)
Full Title
Hydrolases acting on ether bonds (3.3) > Ether hydrolases (3.3.2)
Filing statistics
CPC C12Y 303/02 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
11 direct subcodes
Child Classifications
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- C12Y 303/02001 Isochorismatase (3.3.2.1)
- C12Y 303/02002 Alkenylglycerophosphocholine hydrolase (3.3.2.2)
- C12Y 303/02003 Epoxide hydrolase (3.3.2.3) (C12Y303/02009, C12Y303/0201 take precedence)
- C12Y 303/02004 Trans-epoxysuccinate hydrolase (3.3.2.4)
- C12Y 303/02005 Alkenylglycerophosphoethanolamine hydrolase (3.3.2.5)
- C12Y 303/02006 Leukotriene-A4 hydrolase (3.3.2.6)
- C12Y 303/02007 Hepoxilin-epoxide hydrolase (3.3.2.7)
- C12Y 303/02008 Limonene-1,2-epoxide hydrolase (3.3.2.8)
- C12Y 303/02009 Microsomal epoxide hydrolase (3.3.2.9), i.e. styreneepoxide hydrolase
- C12Y 303/0201 Soluble epoxide hydrolase (3.3.2.10)
- C12Y 303/02011 Cholesterol-5,6-oxide hydrolase (3.3.2.11)
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