the beam tracing a pattern independent of the information to be displayed, this latter determining the parts of the pattern rendered respectively visible and invisible

Introduced: January 1980

Full Title

Full titles differ between systems:

IPC:

Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators > using single beam tubes > the beam tracing a pattern independent of the information to be displayed, this latter determining the parts of the pattern rendered respectively visible and invisible

CPC:

Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; (cathode-ray oscilloscopes G01R13/20; ) > using single beam tubes (G09G1/26, G09G1/28 take precedence), > the beam tracing a pattern independent of the information to be displayed, this latter determining the parts of the pattern rendered respectively visible and invisible

Of 4 combined children, 2 exist in both systems.

2 codes are CPC-only extensions.

IPC defines codes here since 1980.

Child Classifications

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G09G 1/143 CPC only CPC only
G09G 1/146 CPC only CPC only
G09G 1/16 the pattern of rectangular co-ordinates extending over the whole area of the screen, i.e. television type raster since 1980 +2 CPC IPC+CPC Available in IPC and CPC
G09G 1/18 a small local pattern covering only a single character, and stepping to a position for the following character, e.g. in rectangular or polar co-ordinates, or in the form of a framed star since 1980 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class G09,2013–2023, worldwide · Source: EPO PATSTAT

SAMSUNG DISPLAY KR 16,046
BOE TECHNOLOGY GROUP COMPANY 13,766
BOE TECHNOLOGY GROUP COMPANY CN 12,804
LG DISPLAY COMPANY KR 10,322
SAMSUNG ELECTRONICS COMPANY KR 7,738
SAMSUNG DISPLAY 5,172
SEMICONDUCTOR ENERGY LABORATORY COMPANY 4,749
SEMICONDUCTOR ENERGY LABORATORY COMPANY JP 3,417
LG DISPLAY COMPANY 3,335
SONY CORPORATION JP 3,179

Top Applicants (CPC)

Class G09,2013–2023, worldwide · Source: EPO PATSTAT

SAMSUNG DISPLAY KR 22,477
BOE TECHNOLOGY GROUP COMPANY CN 16,016
BOE TECHNOLOGY GROUP COMPANY 12,918
LG DISPLAY COMPANY KR 12,599
SAMSUNG ELECTRONICS COMPANY KR 12,009
SAMSUNG DISPLAY 6,252
SEMICONDUCTOR ENERGY LABORATORY COMPANY JP 4,410
SONY CORPORATION JP 3,965
LG ELECTRONICS KR 3,901
LG DISPLAY COMPANY 3,705