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CPC Subgroup
C07C 307/04

Diamides of sulfuric acids

Full Title

Amides of sulfuric acids, i.e. compounds having singly-bound oxygen atoms of sulfate groups replaced by nitrogen atoms, not being part of nitro or nitroso groups > Diamides of sulfuric acids

3 direct subcodes

Child Classifications

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  • C07C 307/06 having nitrogen atoms of the sulfamide groups bound to acyclic carbon atoms
  • C07C 307/08 having nitrogen atoms of the sulfamide groups bound to carbon atoms of rings other than six-membered aromatic rings
  • C07C 307/10 having nitrogen atoms of the sulfamide 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

  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