CPC Main Group
C07C 257/00 Compounds containing carboxyl groups, the doubly-bound oxygen atom of a carboxyl group being replaced by a doubly-bound nitrogen atom, this nitrogen atom not being further bound to an oxygen atom, e.g. imino-ethers, amidines
3 direct subcodes
Child Classifications
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- C07C 257/02 with replacement of the other oxygen atom of the carboxyl group by halogen atoms, e.g. imino-halides
- C07C 257/04 without replacement of the other oxygen atom of the carboxyl group, e.g. imino-ethers
- C07C 257/10 with replacement of the other oxygen atom of the carboxyl group by nitrogen atoms, e.g. amidines
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