IPC Main Group
C07C 243/00 Compounds containing chains of nitrogen atoms singly-bound to each other, e.g. hydrazines, triazanes
Introduced: January 1990
Last revised: January 2006
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- ORGANIC CHEMISTRY
- Subclass:
- ACYCLIC OR CARBOCYCLIC COMPOUNDS
Related Keywords
HYDRAZIDES
6 direct subcodes
Child Classifications
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- C07C 243/02 N-nitro compounds
- C07C 243/04 N-nitroso compounds
- C07C 243/1 Hydrazines
- C07C 243/24 Hydrazines having nitrogen atoms of hydrazine groups acylated by carboxylic acids
- C07C 243/4 Hydrazines having nitrogen atoms of hydrazine groups being quaternised
- C07C 243/42 Hydrazines having nitrogen atoms of hydrazine groups further singly-bound to hetero atoms
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