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CPC Subgroup
A61K 31/13

Amines

Full Title

Medicinal preparations containing organic active ingredients > Amines

8 direct subcodes

Child Classifications

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  • A61K 31/131 acyclic
  • A61K 31/132 having two or more amino groups, e.g. spermidine, putrescine
  • A61K 31/133 having hydroxy groups, e.g. sphingosine
  • A61K 31/14 Quaternary ammonium compounds, e.g. edrophonium, choline (betaines A61K31/205)
  • A61K 31/145 having sulfur, e.g. thiurams (>N—C(S)—S—C(S)—N< and >N—C(S)—S—S—C(S)—N<), Sulfinylamines (—N=SO), Sulfonylamines (—N=SO2) (isothiourea A61K31/155)
  • A61K 31/15 Oximes (>C=N—O—); Hydrazines (>N—N<); Hydrazones (>N—N=)
  • A61K 31/155 Amidines ([IMAGE cpc-sch-A61K-1029.gif]), e.g. guanidine (H2N—C(=NH)—NH2), isourea (N=C(OH)—NH2), isothiourea (—N=C(SH)—NH2)

Top Applicants

Top 10 applicants by patent filingsfor 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