CPC Subgroup
A61K 31/16 Amides, e.g. hydroxamic acids
Full Title
Medicinal preparations containing organic active ingredients > Amides, e.g. hydroxamic acids
4 direct subcodes
Child Classifications
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- A61K 31/164 of a carboxylic acid with an aminoalcohol, e.g. ceramides
- A61K 31/165 having aromatic rings, e.g. colchicine, atenolol, progabide
- A61K 31/17 having the group >N—C(O)—N< or >N—C(S)—N<, e.g. urea, thiourea, carmustine (isoureas, isothioureas A61K31/155; sulfonylureas A61K31/64)
- A61K 31/18 Sulfonamides (compounds containing a para-N-benzene-sulfonyl-N- group A61K31/63)
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