CPC Subgroup
C07C 311/52 Y being a hetero atom
Full Title
Amides of sulfonic acids, i.e. compounds having singly-bound oxygen atoms of sulfo groups replaced by nitrogen atoms, not being part of nitro or nitroso groups > Compounds containing any of the groups [IMAGE cpc-sch-C07C-0977.gif], X being a hetero atom, Y being any atom > Y being a hetero atom
3 direct subcodes
Child Classifications
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- C07C 311/53 X and Y not being nitrogen atoms, e.g. N-sulfonylcarbamic acid
- C07C 311/54 either X or Y, but not both, being nitrogen atoms, e.g. N-sulfonylurea
- C07C 311/64 X and Y being nitrogen atoms, e.g. N-sulfonylguanidine
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