DIFF Subgroup
H10H 20/819 characterised by their shape, e.g. curved or truncated substrates
Introduced: January 2025
Full Title
Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED] > Constructional details > Bodies > characterised by their shape, e.g. curved or truncated substrates
IPC and CPC are identically structured here. All 2 subcodes exist in both systems.
IPC defines codes here since 2025.
Child Classifications
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- H10H 20/82 Roughened surfaces, e.g. at the interface between epitaxial layers since 2025 IPC+CPC Available in IPC and CPC
- H10H 20/821 of the light-emitting regions, e.g. non-planar junctions since 2025 IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class H10,2013–2023, worldwide · Source: EPO PATSTAT
- SAMSUNG DISPLAY KR 21,044
- SAMSUNG ELECTRONICS COMPANY KR 14,774
- LG DISPLAY COMPANY KR 9,454
- TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 8,301
- SEMICONDUCTOR ENERGY LABORATORY COMPANY JP 7,642
- BOE TECHNOLOGY GROUP COMPANY 6,845
- BOE TECHNOLOGY GROUP COMPANY CN 6,806
- SAMSUNG DISPLAY 6,577
- LG CHEM KR 5,461
- SEMICONDUCTOR ENERGY LABORATORY COMPANY 5,115
Top Applicants (CPC)
Class H10,2013–2023, worldwide · Source: EPO PATSTAT
- SAMSUNG DISPLAY KR 38,446
- TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 30,922
- SAMSUNG ELECTRONICS COMPANY KR 30,059
- BOE TECHNOLOGY GROUP COMPANY CN 20,304
- LG DISPLAY COMPANY KR 17,772
- BOE TECHNOLOGY GROUP COMPANY 15,621
- SEMICONDUCTOR ENERGY LABORATORY COMPANY JP 13,629
- IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 11,750
- SAMSUNG DISPLAY 11,316
- SEMICONDUCTOR ENERGY LABORATORY COMPANY 9,697