A61B 3/00 Apparatus for testing the eyes; Instruments for examining the eyes (eye inspection using ultrasonic, sonic or infrasonic waves A61B8/10)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Apparatus for testing the eyes; Instruments for examining the eyes
CPC: Apparatus for testing the eyes; Instruments for examining the eyes (eye inspection using ultrasonic, sonic or infrasonic waves A61B8/10)
Full Title
Full titles differ between systems:
Apparatus for testing the eyes; Instruments for examining the eyes
Apparatus for testing the eyes; Instruments for examining the eyes (eye inspection using ultrasonic, sonic or infrasonic waves A61B8/10)
Additional Content IPC
Eye inspection using ultrasonic, sonic or infrasonic waves
CPC subdivides this area 3x more granularly than IPC with 5 additional codes.
5 codes are CPC-only extensions.
1 shared codes have differing titles between IPC and CPC.
Child Classifications
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- A61B 3/02 Subjective types, i.e. testing apparatus requiring the active assistance of the patient +1 CPC IPC+CPC Available in IPC and CPC
- A61B 3/10 Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions +5 CPC IPC+CPC Available in IPC and CPC
- A61B 3/18 Arrangement of plural eye-testing or -examining apparatus since 1990 +1 CPC IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
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
Top Applicants (CPC)
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