CPC Subgroup
A61K 35/56 Materials from animals other than mammals
Full Title
Medicinal preparations containing materials or reaction products thereof with undetermined constitution > Materials from animals other than mammals
Filing statistics
CPC A61K 35/56 belongs to the parent subclass A61K, which recorded 1,717,491 patent applications worldwide between 2013 and 2023. Annual filings grew from 114,681 in 2013 to 125,843 in 2023 (+10%), peaking at 182,901 applications in 2016. The most active applicants in class A61 are PHILIPS ELECTRONICS (20,621 applications), NOVARTIS (15,792 applications) and ROCHE (14,303 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 35/58 Reptiles (antigens from snakes A61K39/38)
- A61K 35/60 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 35/63 Arthropods (aquatic crustaceans A61K35/612)
- A61K 35/65 Amphibians, e.g. toads, frogs, salamanders or newts
- A61K 35/655 Aquatic animals other than those covered by groups A61K35/57 - A61K35/65
Top Applicants
Top 10 applicants by patent filingsfor class A61, 2013–2023, worldwide · Source: EPO PATSTAT
- PHILIPS ELECTRONICS NL 20,621
- NOVARTIS CH 15,792
- ROCHE CH 14,303
- COVIDIEN US 13,862
- HARVARD UNIVERSITY US 13,454
- UNIVERSITY OF CALIFORNIA US 12,798
- P&G (PROCTER & GAMBLE COMPANY) US 12,140
- L'OREAL FR 11,800
- OLYMPUS CORPORATION JP 9,894
- BOSTON SCIENTIFIC SCIMED US 9,513