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PCE
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DIFF Subgroup
A61K 31/445

Non condensed piperidines, e.g. piperocaine

Introduced: July 1974

Title

Titles differ between systems:

IPC: Non-condensed piperidines, e.g. piperocaine

CPC: Non condensed piperidines, e.g. piperocaine

Full Title

Full titles differ between systems:

IPC:

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

CPC:

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

IPC and CPC are identically structured here. All 10 subcodes exist in both systems.

4 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 1974.

Child Classifications

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  • A61K 31/4453 only substituted in position 1, e.g. propipocaine, diperodon since 2000 IPC+CPC Available in IPC and CPC
  • A61K 31/4458 only substituted in position 2, e.g. methylphenidate since 2000 IPC+CPC Available in IPC and CPC
  • A61K 31/4462 only substituted in position 3 since 2000 IPC+CPC Available in IPC and CPC
  • A61K 31/4465 only substituted in position 4 since 2000 IPC+CPC Available in IPC and CPC
  • A61K 31/4468 having a nitrogen directly attached in position 4, e.g. clebopride, fentanyl since 2000 IPC+CPC Available in IPC and CPC
  • A61K 31/45 having oxo groups directly attached to the heterocyclic ring, e.g. cycloheximide since 1974 IPC+CPC Available in IPC and CPC
  • A61K 31/451 having a carbocyclic group directly attached to the heterocyclic ring, e.g. glutethimide, meperidine, loperamide, phencyclidine, piminodine since 2000 IPC+CPC Available in IPC and CPC
  • A61K 31/4515 having a butyrophenone group in position 1, e.g. haloperidol (pipamperone A61K31/4545) since 2000 IPC+CPC Available in IPC and CPC
  • A61K 31/452 Piperidinium derivatives (pancuronium A61K31/58) since 2000 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

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

Top Applicants (CPC)

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