DIFF Main Group
G02B 13/00 Optical objectives specially designed for the purposes specified below (with variable magnification G02B15/00)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Optical objectives specially designed for the purposes specified below
CPC: Optical objectives specially designed for the purposes specified below (with variable magnification G02B15/00)
Full Title
Full titles differ between systems:
IPC:
Optical objectives specially designed for the purposes specified below
CPC:
Optical objectives specially designed for the purposes specified below (with variable magnification G02B15/00)
Of 13 combined children, 10 exist in both systems.
3 codes are CPC-only extensions.
2 shared codes have differing titles between IPC and CPC.
Child Classifications
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- G02B 13/02 Telephoto objectives, i.e. systems of the type + - in which the distance from the front vertex to the image plane is less than the equivalent focal length IPC+CPC Available in IPC and CPC
- G02B 13/14 for use with infrared or ultraviolet radiation ( G02B13/16 take precedence) +2 CPC IPC+CPC Available in IPC and CPC
- G02B 13/16 for use in conjunction with image converters or intensifiers IPC+CPC Available in IPC and CPC
- G02B 13/18 with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class G02,2013–2023, worldwide · Source: EPO PATSTAT
- BOE TECHNOLOGY GROUP COMPANY 13,460
- BOE TECHNOLOGY GROUP COMPANY CN 11,745
- SAMSUNG DISPLAY KR 10,908
- CANON 9,072
- FUJIFILM JP 7,957
- SAMSUNG ELECTRONICS COMPANY KR 7,805
- LG DISPLAY COMPANY KR 6,558
- CHINESE ACADEMY OF SCIENCES 5,855
- NITTO DENKO CORPORATION JP 5,817
- OLYMPUS CORPORATION JP 4,579
Top Applicants (CPC)
Class G02,2013–2023, worldwide · Source: EPO PATSTAT
- SAMSUNG DISPLAY KR 14,409
- BOE TECHNOLOGY GROUP COMPANY CN 14,236
- BOE TECHNOLOGY GROUP COMPANY 11,826
- SAMSUNG ELECTRONICS COMPANY KR 10,141
- FUJIFILM JP 8,506
- LG DISPLAY COMPANY KR 7,558
- NITTO DENKO CORPORATION JP 6,306
- OLYMPUS CORPORATION JP 5,336
- SONY CORPORATION JP 5,097
- CANON JP 4,814