CPC Main Group
C07C 243/00 Compounds containing chains of nitrogen atoms singly-bound to each other, e.g. hydrazines, triazanes
6 direct subcodes
Child Classifications
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- C07C 243/02 N-nitro compounds
- C07C 243/04 N-nitroso compounds
- C07C 243/10 Hydrazines
- C07C 243/24 Hydrazines having nitrogen atoms of hydrazine groups acylated by carboxylic acids
- C07C 243/40 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
- ROCHE CH 12,683
- NOVARTIS CH 10,775
- CHINESE ACADEMY OF SCIENCES 10,619
- BASF (BADISCHE ANILIN & SODA FABRIK) DE 9,511
- REGENERON PHARMACEUTICALS US 8,426
- BRISTOL-MYERS SQUIBB COMPANY US 7,979
- LG CHEM KR 7,978
- HARVARD UNIVERSITY US 7,706
- UNIVERSITY OF CALIFORNIA US 7,455
- SINOPEC (CHINA PETROCHEMICAL CORPORATION) 7,219