DIFF Subgroup
H05B 45/44 with an active control inside an LED matrix
Introduced: January 2020
Full Title
Circuit arrangements for operating light-emitting diodes [LED] > Details of LED load circuits > with an active control inside an LED matrix
Additional Content IPC
LED matrix with active control An arrangement of LEDs and switches, whereby some of the LEDs may be switched into a series or a parallel configuration.
IPC and CPC are identically structured here. All 2 subcodes exist in both systems.
IPC defines codes here since 2020.
Child Classifications
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- H05B 45/48 having LEDs organised in strings and incorporating parallel shunting devices since 2020 IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class H05,2013–2023, worldwide · Source: EPO PATSTAT
- SAMSUNG ELECTRONICS COMPANY KR 7,201
- PANASONIC INTELLECTUAL PROPERTY 6,828
- SEMICONDUCTOR ENERGY LABORATORY COMPANY 3,988
- LG ELECTRONICS KR 3,564
- PANASONIC INTELLECTUAL PROPERTY JP 3,533
- SAMSUNG DISPLAY KR 3,310
- FUJI JP 2,870
- SAMSUNG ELECTRO-MECHANICS COMPANY KR 2,675
- GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORPORATION 2,665
- MURATA MANUFACTURING COMPANY JP 2,634
Top Applicants (CPC)
Class H05,2013–2023, worldwide · Source: EPO PATSTAT
- SAMSUNG ELECTRONICS COMPANY KR 9,981
- SAMSUNG DISPLAY KR 5,041
- LG ELECTRONICS KR 4,742
- PHILIP MORRIS PRODUCTS CH 4,411
- PANASONIC INTELLECTUAL PROPERTY JP 3,915
- PANASONIC INTELLECTUAL PROPERTY 3,471
- SAMSUNG ELECTRO-MECHANICS COMPANY KR 3,210
- MURATA MANUFACTURING COMPANY JP 3,191
- FUJI JP 2,987
- SIGNIFY HOLDING NL 2,907