Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions

Introduced: September 1968

Title

Titles differ between systems:

IPC: Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions

CPC: Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions

Full Title

Full titles differ between systems:

IPC:

Apparatus for testing the eyes; Instruments for examining the eyes > Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions

CPC:

Apparatus for testing the eyes; Instruments for examining the eyes (eye inspection using ultrasonic, sonic or infrasonic waves A61B8/10) > Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions

Of 14 combined children, 9 exist in both systems.

5 codes are CPC-only extensions.

2 shared codes have differing titles between IPC and CPC.

Child Classifications

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A61B 3/1005 CPC only CPC only
A61B 3/101 CPC only CPC only
A61B 3/1015 CPC only CPC only
A61B 3/102 CPC only CPC only
A61B 3/1025 CPC only CPC only
A61B 3/103 for determining refraction, e.g. refractometers, skiascopes since 1990 +1 CPC IPC+CPC Available in IPC and CPC
A61B 3/107 for determining the shape or measuring the curvature of the cornea since 1990 IPC+CPC Available in IPC and CPC
A61B 3/11 for measuring interpupillary distance or diameter of pupils since 1990 +2 CPC IPC+CPC Available in IPC and CPC
A61B 3/113 for determining or recording eye movement since 1990 IPC+CPC Available in IPC and CPC
A61B 3/117 for examining the anterior chamber or the anterior chamber angle, e.g. gonioscopes since 1990 +1 CPC IPC+CPC Available in IPC and CPC
A61B 3/12 for looking at the eye fundus, e.g. ophthalmoscopes (A61B3/13 takes precedence) +4 CPC IPC+CPC Available in IPC and CPC
A61B 3/13 Ophthalmic microscopes since 1990 +1 CPC IPC+CPC Available in IPC and CPC
A61B 3/14 Arrangements specially adapted for eye photography +1 CPC IPC+CPC Available in IPC and CPC
A61B 3/16 for measuring intraocular pressure, e.g. tonometers +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