IPC Main Group
G02B 23/00 Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- PHYSICS
- Class:
- OPTICS
- Subclass:
- OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
Additional Content
Measuring telescopes Diagnostic instruments
Related Keywords
BINOCULARSTELESCOPES
5 direct subcodes
Child Classifications
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- G02B 23/02 involving prisms or mirrors
- G02B 23/12 with means for image conversion or intensification
- G02B 23/14 Viewfinders
- G02B 23/16 Housings; Caps; Mountings; Supports, e.g. with counterweight
- G02B 23/24 Instruments for viewing the inside of hollow bodies, e.g. fibrescopes
Top Applicants
Top 10 applicants by patent filingsfor 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