CPC Main Group Additional Only
C12Q 2334/00 O-linked chromogens for determinations of hydrolase enzymes, e.g. glycosidases, phosphatases, esterases
6 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- C12Q 2334/10 p-Nitrophenol derivatives
- C12Q 2334/20 Coumarin derivatives
- C12Q 2334/30 Naphthol derivatives, e.g. alpha-naphthyl-esters, i.e. alpha-NE, beta-naphthyl-esters, i.e. beta-NE
- C12Q 2334/40 Triphenylmethane dye chromogens, e.g. fluorescein derivatives
- C12Q 2334/50 Indoles
- C12Q 2334/70 the product, e.g. phenol, naphthol being diazotised in situ, e.g. with Fast Red
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