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CPC Subgroup
A61K 31/445

Non condensed piperidines, e.g. piperocaine

Full Title

Medicinal preparations containing organic active ingredients > Heterocyclic compounds > having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins > having six-membered rings with one nitrogen as the only ring hetero atom > Non condensed pyridines; Hydrogenated derivatives thereof > Non condensed piperidines, e.g. piperocaine

10 direct subcodes

Child Classifications

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  • A61K 31/4453 only substituted in position 1, e.g. propipocaine, diperodon
  • A61K 31/4458 only substituted in position 2, e.g. methylphenidate
  • A61K 31/4462 only substituted in position 3
  • A61K 31/4465 only substituted in position 4
  • A61K 31/4468 having a nitrogen directly attached in position 4, e.g. clebopride, fentanyl
  • A61K 31/45 having oxo groups directly attached to the heterocyclic ring, e.g. cycloheximide
  • A61K 31/451 having a carbocyclic group directly attached to the heterocyclic ring, e.g. glutethimide, meperidine, loperamide, phencyclidine, piminodine
  • A61K 31/4515 having a butyrophenone group in position 1, e.g. haloperidol (pipamperone A61K31/4545)
  • A61K 31/452 Piperidinium derivatives (pancuronium A61K31/58)

Top Applicants

Top 10 applicants by patent filingsfor class A61, 2013–2023, worldwide · Source: EPO PATSTAT

  1. PHILIPS ELECTRONICS NL 20,621
  2. NOVARTIS CH 15,792
  3. ROCHE CH 14,303
  4. COVIDIEN US 13,862
  5. HARVARD UNIVERSITY US 13,454
  6. UNIVERSITY OF CALIFORNIA US 12,798
  7. P&G (PROCTER & GAMBLE COMPANY) US 12,140
  8. L'OREAL FR 11,800
  9. OLYMPUS CORPORATION JP 9,894
  10. BOSTON SCIENTIFIC SCIMED US 9,513