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CPC Subgroup
C07C 311/03

having the nitrogen atoms of the sulfonamide groups bound to hydrogen atoms or to acyclic carbon atoms

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 > Sulfonamides having sulfur atoms of sulfonamide groups bound to acyclic carbon atoms > of an acyclic saturated carbon skeleton > having the nitrogen atoms of the sulfonamide groups bound to hydrogen atoms or to acyclic carbon atoms

3 direct subcodes

Child Classifications

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  • C07C 311/04 to acyclic carbon atoms of hydrocarbon radicals substituted by singly-bound oxygen atoms
  • C07C 311/05 to acyclic carbon atoms of hydrocarbon radicals substituted by nitrogen atoms, not being part of nitro or nitroso groups
  • C07C 311/06 to acyclic carbon atoms of hydrocarbon radicals substituted by carboxyl groups

Top Applicants

Top 10 applicants by patent filingsfor class C07, 2013–2023, worldwide · Source: EPO PATSTAT

  1. ROCHE CH 12,683
  2. NOVARTIS CH 10,775
  3. CHINESE ACADEMY OF SCIENCES 10,619
  4. BASF (BADISCHE ANILIN & SODA FABRIK) DE 9,511
  5. REGENERON PHARMACEUTICALS US 8,426
  6. BRISTOL-MYERS SQUIBB COMPANY US 7,979
  7. LG CHEM KR 7,978
  8. HARVARD UNIVERSITY US 7,706
  9. UNIVERSITY OF CALIFORNIA US 7,455
  10. SINOPEC (CHINA PETROCHEMICAL CORPORATION) 7,219