H10B 20/20 Programmable ROM [PROM] devices comprising field-effect components (H10B20/10 takes precedence)
Introduced: January 2023
Title
Titles differ between systems:
IPC: Programmable ROM [PROM] devices comprising field-effect components
CPC: Programmable ROM [PROM] devices comprising field-effect components (H10B20/10 takes precedence)
Full Title
Full titles differ between systems:
Read-only memory [ROM] devices > Programmable ROM [PROM] devices comprising field-effect components
Read-only memory [ROM] devices > Programmable ROM [PROM] devices comprising field-effect components (H10B20/10 takes precedence)
Additional Content IPC
ROM devices comprising bipolar components
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
IPC defines codes here since 2023.
Child Classifications
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- H10B 20/25 One-time programmable ROM [OTPROM] devices, e.g. using electrically-fusible links since 2023 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