IPC Subgroup
C07C 249/04 of oximes
Introduced: January 1990
Last revised: January 2006
Full Title
Preparation of compounds containing nitrogen atoms doubly-bound to a carbon skeleton > of oximes
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- ORGANIC CHEMISTRY
- Subclass:
- ACYCLIC OR CARBOCYCLIC COMPOUNDS
5 direct subcodes
Child Classifications
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- C07C 249/06 by nitrosation of hydrocarbons or substituted hydrocarbons
- C07C 249/08 by reaction of hydroxylamines with carbonyl compounds
- C07C 249/1 from nitro compounds or salts thereof
- C07C 249/12 by reactions not involving the formation of oxyimino groups
- C07C 249/14 Separation; Purification; Stabilisation; Use of additives
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