CPC Subgroup
C12Y 301/04 Phosphoric diester hydrolases (3.1.4)
Full Title
Hydrolases acting on ester bonds (3.1) > Phosphoric diester hydrolases (3.1.4)
Filing statistics
CPC C12Y 301/04 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
29 direct subcodes
Child Classifications
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- C12Y 301/04001 Phosphodiesterase I (3.1.4.1)
- C12Y 301/04002 Glycerophosphocholine phosphodiesterase (3.1.4.2)
- C12Y 301/04003 Phospholipase C (3.1.4.3)
- C12Y 301/04004 Phospholipase D (3.1.4.4)
- C12Y 301/04011 Phosphoinositide phospholipase C (3.1.4.11)
- C12Y 301/04012 Sphingomyelin phosphodiesterase (3.1.4.12)
- C12Y 301/04013 Serine-ethanolaminephosphate phosphodiesterase (3.1.4.13)
- C12Y 301/04014 [Acyl-carrier-protein] phosphodiesterase (3.1.4.14)
- C12Y 301/04015 Adenylyl-[glutamate--ammonia ligase] hydrolase (3.1.4.15)
- C12Y 301/04016 2',3'-Cyclic-nucleotide 2'-phosphodiesterase (3.1.4.16)
- C12Y 301/04017 3',5'-Cyclic-nucleotide phosphodiesterase (3.1.4.17)
- C12Y 301/04035 3',5'-Cyclic-GMP phosphodiesterase (3.1.4.35)
- C12Y 301/04037 2',3'-Cyclic-nucleotide 3'-phosphodiesterase (3.1.4.37)
- C12Y 301/04038 Glycerophosphocholine cholinephosphodiesterase (3.1.4.38)
- C12Y 301/04039 Alkylglycerophosphoethanolamine phosphodiesterase (3.1.4.39)
- C12Y 301/0404 CMP-N-acylneuraminate phosphodiesterase (3.1.4.40)
- C12Y 301/04041 Sphingomyelin phosphodiesterase D (3.1.4.41)
- C12Y 301/04042 Glycerol-1,2-cyclic-phosphate 2-phosphodiesterase (3.1.4.42)
- C12Y 301/04043 Glycerophosphoinositol inositolphosphodiesterase (3.1.4.43)
- C12Y 301/04044 Glycerophosphoinositol glycerophosphodiesterase (3.1.4.44)
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