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IPC Subgroup
A61K 35/56

Materials from animals other than mammals

Introduced: July 1974

Last revised: January 2015

Full Title

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

Classification Context

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

Filing statistics

IPC A61K 35/56 belongs to the parent subclass A61K, which recorded 1,792,627 patent applications worldwide between 2013 and 2023. Annual filings declined from 147,606 in 2013 to 132,650 in 2023 (-10%), peaking at 177,518 applications in 2016. The most active applicants in class A61 are PHILIPS ELECTRONICS (18,523 applications), NOVARTIS (14,253 applications) and COVIDIEN (13,953 applications).

Source: EPO PATSTAT, worldwide filings

11 direct subcodes

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
  • A61K 35/6 Fish, e.g. seahorses; Fish eggs
  • A61K 35/612 Crustaceans, e.g. crabs, lobsters, shrimps, krill or crayfish; Barnacles
  • A61K 35/614 Cnidaria, e.g. sea anemones, corals, coral animals or jellyfish
  • A61K 35/616 Echinodermata, e.g. starfish, sea cucumbers or sea urchins
  • A61K 35/618 Molluscs, e.g. fresh-water molluscs, oysters, clams, squids, octopus, cuttlefish, snails or slugs
  • A61K 35/62 Leeches; Worms, e.g. cestodes, tapeworms, nematodes, roundworms, earth worms, ascarids, filarias, hookworms, trichinella or taenia
  • A61K 35/65 Amphibians, e.g. toads, frogs, salamanders or newts
  • A61K 35/655 Aquatic animals other than those covered by groups

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