IPC Subgroup
C07D 251/54 Three nitrogen atoms
Introduced: July 1974
Last revised: January 2006
Full Title
Heterocyclic compounds containing 1,3,5-triazine rings > not condensed with other rings > having three double bonds between ring members or between ring members and non-ring members > with only hetero atoms directly attached to ring carbon atoms > Nitrogen atoms > Three nitrogen atoms
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- ORGANIC CHEMISTRY
- Subclass:
- HETEROCYCLIC COMPOUNDS
Related Keywords
MELAMINE
6 direct subcodes
Child Classifications
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- C07D 251/56 Preparation of melamine
- C07D 251/62 Purification of melamine
- C07D 251/64 Condensation products of melamine with aldehydes; Derivatives thereof
- C07D 251/66 Derivatives of melamine in which a hetero atom is directly attached to a nitrogen atom of melamine
- C07D 251/68 Triazinylamino stilbenes
- C07D 251/7 Other substituted melamines
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