IPC Subgroup
C07H 19/04 Heterocyclic radicals containing only nitrogen as ring hetero atom
Introduced: July 1974
Last revised: January 2006
Full Title
Compounds containing a hetero ring sharing one ring hetero atom with a saccharide radical; Nucleosides; Mononucleotides; Anhydro derivatives thereof > sharing nitrogen > Heterocyclic radicals containing only nitrogen as ring hetero atom
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- ORGANIC CHEMISTRY
- Subclass:
- SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
10 direct subcodes
Child Classifications
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- C07H 19/044 Pyrrole radicals
- C07H 19/048 Pyridine radicals
- C07H 19/052 Imidazole radicals
- C07H 19/056 Triazole or tetrazole radicals
- C07H 19/06 Pyrimidine radicals
- C07H 19/12 Triazine radicals
- C07H 19/14 Pyrrolo-pyrimidine radicals
- C07H 19/16 Purine radicals
- C07H 19/22 Pteridine radicals
- C07H 19/23 Heterocyclic radicals containing two or more heterocyclic rings condensed among themselves or condensed with a common carbocyclic ring system, not provided for in groups
Top Applicants
Top 10 applicants by patent filingsfor class C07, 2013–2023, worldwide · Source: EPO PATSTAT
- CHINESE ACADEMY OF SCIENCES 12,697
- ROCHE CH 11,347
- SINOPEC (CHINA PETROCHEMICAL CORPORATION) 11,024
- NOVARTIS CH 9,356
- BASF (BADISCHE ANILIN & SODA FABRIK) DE 8,531
- BRISTOL-MYERS SQUIBB COMPANY US 7,320
- LG CHEM KR 7,245
- REGENERON PHARMACEUTICALS US 6,816
- HARVARD UNIVERSITY US 6,190
- GENENTECH US 5,922