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IPC Subgroup
A61K 31/445

Non-condensed piperidines, e.g. piperocaine

Introduced: July 1974

Last revised: January 2006

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

Classification Context

Section:
HUMAN NECESSITIES
Class:
MEDICAL OR VETERINARY SCIENCE; HYGIENE
Subclass:
PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES

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 atom 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 ring 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
  • A61K 31/452 Piperidinium derivatives

Top Applicants

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

  1. PHILIPS ELECTRONICS NL 18,523
  2. NOVARTIS CH 14,253
  3. COVIDIEN US 13,953
  4. ROCHE CH 12,005
  5. CHINESE ACADEMY OF SCIENCES 11,955
  6. UNIVERSITY OF CALIFORNIA US 11,692
  7. HARVARD UNIVERSITY US 11,596
  8. L'OREAL FR 11,593
  9. P&G (PROCTER & GAMBLE COMPANY) US 11,297
  10. OLYMPUS CORPORATION JP 9,594