DIFF Main Group
G11C 8/00 Arrangements for selecting an address in a digital store (for stores using transistors G11C11/407, G11C11/413)
Introduced: July 1974
Title
Titles differ between systems:
IPC: Arrangements for selecting an address in a digital store
CPC: Arrangements for selecting an address in a digital store (for stores using transistors G11C11/407, G11C11/413)
Full Title
Full titles differ between systems:
IPC:
Arrangements for selecting an address in a digital store
CPC:
Arrangements for selecting an address in a digital store (for stores using transistors G11C11/407, G11C11/413)
Of 11 combined children, 9 exist in both systems.
1 codes are CPC-only extensions, 1 exist only in IPC.
IPC defines codes here since 1974.
Child Classifications
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- G11C 8/04 using a sequential addressing device, e.g. shift register, counter since 1990 IPC+CPC Available in IPC and CPC
- G11C 8/06 Address interface arrangements, e.g. address buffers since 2000 IPC+CPC Available in IPC and CPC
- G11C 8/08 Word line control circuits, e.g. drivers, boosters, pull-up circuits, pull-down circuits, precharging circuits, for word lines since 2000 IPC+CPC Available in IPC and CPC
- G11C 8/12 Group selection circuits, e.g. for memory block selection, chip selection, array selection since 2000 IPC+CPC Available in IPC and CPC
- G11C 8/16 Multiple access memory array, e.g. addressing one storage element via at least two independent addressing line groups since 2000 IPC+CPC Available in IPC and CPC
- G11C 8/18 Address timing or clocking circuits; Address control signal generation or management, e.g. for row address strobe [RAS] or column address strobe [CAS] signals since 2000 IPC+CPC Available in IPC and CPC
- G11C 8/20 Address safety or protection circuits, i.e. arrangements for preventing unauthorized or accidental access since 2000 IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class G11,2013–2023, worldwide · Source: EPO PATSTAT
- MICRON TECHNOLOGY US 10,574
- SK HYNIX KR 9,138
- SAMSUNG ELECTRONICS COMPANY KR 9,004
- TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 3,739
- IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 3,443
- INTEL CORPORATION US 2,952
- SANDISK TECHNOLOGIES US 2,905
- WESTERN DIGITAL TECHNOLOGIES US 2,630
- TOSHIBA CORPORATION JP 2,593
- SEAGATE TECHNOLOGY US 2,472
Top Applicants (CPC)
Class G11,2013–2023, worldwide · Source: EPO PATSTAT
- MICRON TECHNOLOGY US 12,397
- SAMSUNG ELECTRONICS COMPANY KR 12,238
- SK HYNIX KR 11,371
- TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 4,601
- INTEL CORPORATION US 3,874
- IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 3,866
- SANDISK TECHNOLOGIES US 3,151
- SK HYNIX 3,143
- SAMSUNG ELECTRONICS COMPANY 3,073
- WESTERN DIGITAL TECHNOLOGIES US 2,961