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DIFF Subgroup
A61K 35/56

Materials from animals other than mammals

Introduced: July 1974

Full Title

Medicinal preparations containing materials or reaction products thereof with undetermined constitution > Materials from animals other than mammals

IPC and CPC are identically structured here. All 11 subcodes exist in both systems.

3 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 1974.

Child Classifications

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  • A61K 35/57 Birds; Materials from birds, e.g. eggs, feathers, egg white, egg yolk or endothelium corneum gigeriae galli since 2015 IPC+CPC Available in IPC and CPC
  • A61K 35/60 Fish, e.g. seahorses; Fish eggs since 1974 IPC+CPC Available in IPC and CPC
  • A61K 35/612 Crustaceans, e.g. crabs, lobsters, shrimps, krill or crayfish; Barnacles since 2015 IPC+CPC Available in IPC and CPC
  • A61K 35/614 Cnidaria, e.g. sea anemones, corals, coral animals or jellyfish since 2015 IPC+CPC Available in IPC and CPC
  • A61K 35/616 Echinodermata, e.g. starfish, sea cucumbers or sea urchins since 2015 IPC+CPC Available in IPC and CPC
  • A61K 35/618 Molluscs, e.g. fresh-water molluscs, oysters, clams, squids, octopus, cuttlefish, snails or slugs since 2015 IPC+CPC Available in IPC and CPC
  • A61K 35/62 Leeches; Worms, e.g. cestodes, tapeworms, nematodes, roundworms, earth worms, ascarids, filarias, hookworms, trichinella or taenia since 1974 IPC+CPC Available in IPC and CPC
  • A61K 35/65 Amphibians, e.g. toads, frogs, salamanders or newts since 2015 IPC+CPC Available in IPC and CPC
  • A61K 35/655 Aquatic animals other than those covered by groups A61K35/57 - A61K35/65 since 2015 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