H05B 41/282 with semiconductor devices (, H05B41/288, H05B41/295 take precedence)
Introduced: January 2000
Title
Titles differ between systems:
IPC: with semiconductor devices
CPC: with semiconductor devices (, H05B41/288, H05B41/295 take precedence)
Full Title
Full titles differ between systems:
Circuit arrangements or apparatus for igniting or operating discharge lamps > Circuit arrangements > in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC > using static converters > with semiconductor devices
Circuit arrangements or apparatus for igniting or operating discharge lamps (structurally associated with the discharge lamps H01J61/54, H01J61/56) > Circuit arrangements > in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC > using static converters > with semiconductor devices (, H05B41/288, H05B41/295 take precedence)
CPC subdivides this area 3x more granularly than IPC with 2 additional codes.
2 codes are CPC-only extensions.
IPC defines codes here since 2000.
Child Classifications
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- H05B 41/285 Arrangements for protecting lamps or circuits against abnormal operating conditions since 2000 +2 CPC 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