G02F 2/00 Demodulating light; Transferring the modulation of modulated light; Frequency-changing of light (G02F1/35 takes precedence)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Demodulating light; Transferring the modulation of modulated light; Frequency-changing of light
CPC: Demodulating light; Transferring the modulation of modulated light; Frequency-changing of light (G02F1/35 takes precedence)
Full Title
Full titles differ between systems:
Demodulating light; Transferring the modulation of modulated light; Frequency-changing of light
Demodulating light; Transferring the modulation of modulated light; Frequency-changing of light (G02F1/35 takes precedence)
Additional Content IPC
Control of the emitted radiation in laser devices ,
CPC subdivides this area 3x more granularly than IPC with 2 additional codes.
2 codes are CPC-only extensions.
IPC defines codes here since 1974.
Child Classifications
Navigate with arrow keys, Enter to open
- G02F 2/02 Frequency-changing of light, e.g. by quantum counters since 1974 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