CPC Subgroup
A61K 31/60 Salicylic acid; Derivatives thereof
Full Title
Medicinal preparations containing organic active ingredients > Salicylic acid; Derivatives thereof
Filing statistics
CPC A61K 31/60 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
6 direct subcodes
Child Classifications
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- A61K 31/603 having further aromatic rings, e.g. diflunisal
- A61K 31/606 having amino groups
- A61K 31/609 Amides, e.g. salicylamide
- A61K 31/612 having the hydroxy group in position 2 esterified, e.g. salicylsulfuric acid (fosfosal A61K31/661)
- A61K 31/618 having the carboxyl group in position 1 esterified, e.g. salsalate
- A61K 31/625 having heterocyclic substituents, e.g. 4-salicycloylmorpholine, (sulfasalazine A61K31/635)
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