CPC Subgroup
C12Y 603/02 Acid—amino-acid ligases (peptide synthases)(6.3.2)
Full Title
Ligases forming carbon-nitrogen bonds (6.3) > Acid—amino-acid ligases (peptide synthases)(6.3.2)
Filing statistics
CPC C12Y 603/02 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
36 direct subcodes
Child Classifications
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- C12Y 603/02001 Pantoate-beta-alanine ligase (6.3.2.1)
- C12Y 603/02002 Glutamate-cysteine ligase (6.3.2.2)
- C12Y 603/02003 Glutathione synthase (6.3.2.3)
- C12Y 603/02004 D-Alanine-D-alanine ligase (6.3.2.4)
- C12Y 603/02005 Phosphopantothenate--cysteine ligase (6.3.2.5)
- C12Y 603/02006 Phosphoribosylaminoimidazolesuccinocarboxamide synthase (6.3.2.6)
- C12Y 603/02007 UDP-N-acetylmuramoyl-L-alanyl-D-glutamate--L-lysine ligase (6.3.2.7)
- C12Y 603/02008 UDP-N-acetylmuramate-L-alanine ligase (6.3.2.8)
- C12Y 603/02009 UDP-N-acetylmuramoyl-L-alanine-D-glutamate ligase (6.3.2.9)
- C12Y 603/0201 UDP-N-acetylmuramoyl-tripeptide-D-alanyl-D-alanine ligase (6.3.2.10)
- C12Y 603/02011 Carnosine synthase (6.3.2.11)
- C12Y 603/02012 Dihydrofolate synthase (6.3.2.12)
- C12Y 603/02013 UDP-N-acetylmuramoyl-L-alanyl-D-glutamate-2,6-diaminopimelate ligase (6.3.2.13)
- C12Y 603/02014 2,3-Dihydroxybenzoate--serine ligase (6.3.2.14)
- C12Y 603/02016 D-Alanine--alanyl-poly(glycerolphosphate) ligase (6.3.2.16)
- C12Y 603/02017 Tetrahydrofolate synthase (6.3.2.17)
- C12Y 603/02018 Gamma-glutamylhistamine synthase (6.3.2.18)
- C12Y 603/02019 Ubiquitin-protein ligase (6.3.2.19), i.e. ubiquitin-conjugating enzyme
- C12Y 603/0202 Indoleacetate--lysine synthetase (6.3.2.20)
- C12Y 603/02021 Ubiquitin--calmodulin ligase (6.3.2.21)
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