CPC Subgroup
C07C 243/10 Hydrazines
Full Title
Compounds containing chains of nitrogen atoms singly-bound to each other, e.g. hydrazines, triazanes > Hydrazines
3 direct subcodes
Child Classifications
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- C07C 243/12 having nitrogen atoms of hydrazine groups bound to acyclic carbon atoms
- C07C 243/20 having nitrogen atoms of hydrazine groups bound to carbon atoms of rings other than six-membered aromatic rings
- C07C 243/22 having nitrogen atoms of hydrazine groups bound to carbon atoms of six-membered aromatic rings
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