IPC Main Group
A61K 31/00 Medicinal preparations containing organic active ingredients
Introduced: July 1974
Last revised: January 2006
Classification Context
- Section:
- HUMAN NECESSITIES
- Class:
- MEDICAL OR VETERINARY SCIENCE; HYGIENE
- Subclass:
- PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
Related Keywords
ANTIBIOTIC(S) preparationsmedicinal preparations of VITAMIN(S)
30 direct subcodes
Child Classifications
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- A61K 31/01 Hydrocarbons
- A61K 31/02 Halogenated hydrocarbons
- A61K 31/04 Nitro compounds
- A61K 31/045 Hydroxy compounds, e.g. alcohols; Salts thereof, e.g. alcoholates
- A61K 31/075 Ethers or acetals
- A61K 31/095 Sulfur, selenium or tellurium compounds, e.g. thiols
- A61K 31/11 Aldehydes
- A61K 31/12 Ketones
- A61K 31/13 Amines, e.g. amantadine
- A61K 31/16 Amides, e.g. hydroxamic acids
- A61K 31/185 Acids; Anhydrides, halides or salts thereof, e.g. sulfur acids, imidic, hydrazonic or hydroximic acids
- A61K 31/21 Esters, e.g. nitroglycerine, selenocyanates
- A61K 31/275 Nitriles; Isonitriles
- A61K 31/28 Compounds containing heavy metals
- A61K 31/325 Carbamic acids; Thiocarbamic acids; Anhydrides or salts thereof
- A61K 31/327 Peroxy compounds, e.g. hydroperoxides, peroxides, peroxy acids
- A61K 31/33 Heterocyclic compounds
- A61K 31/557 Eicosanoids, e.g. leukotrienes
- A61K 31/56 Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids
- A61K 31/59 Compounds containing 9,10-seco-cyclopenta[a]hydro- phenanthrene ring systems
Top Applicants
Top 10 applicants by patent filingsfor class A61, 2013–2023, worldwide · Source: EPO PATSTAT
- PHILIPS ELECTRONICS NL 18,523
- NOVARTIS CH 14,253
- COVIDIEN US 13,953
- ROCHE CH 12,005
- CHINESE ACADEMY OF SCIENCES 11,955
- UNIVERSITY OF CALIFORNIA US 11,692
- HARVARD UNIVERSITY US 11,596
- L'OREAL FR 11,593
- P&G (PROCTER & GAMBLE COMPANY) US 11,297
- OLYMPUS CORPORATION JP 9,594