CPC Main Group
A61F 9/00 Methods or devices for treatment of the eyes; Devices for putting in contact-lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand (caps with means for protecting the eyes A42B1/0181; visors for helmets A42B3/22; eye baths A61H35/02; sunglasses or goggles having the same features as spectacles G02C)
Filing statistics
CPC A61F 9/00 belongs to the parent subclass A61F, which recorded 314,652 patent applications worldwide between 2013 and 2023. Annual filings declined from 25,920 in 2013 to 21,354 in 2023 (-18%), peaking at 33,334 applications in 2020. 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
7 direct subcodes
Child Classifications
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- A61F 9/007 Methods or devices for eye surgery
- A61F 9/02 Goggles (for swimming A63B33/00)
- A61F 9/04 Eye-masks
- A61F 9/08 Devices or methods enabling eye-patients to replace direct visual perception by another kind of perception
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