CPC Subgroup
G11C 11/21 using electric elements
Full Title
Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor (G11C14/00 - G11C21/00 take precedence) > using electric elements
7 direct subcodes
Child Classifications
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- G11C 11/22 using ferroelectric elements
- G11C 11/23 using electrostatic storage on a common layer, e.g. Forrester-Haeff tubes (G11C11/22 takes precedence)
- G11C 11/24 using capacitors (G11C11/22 takes precedence; using a combination of semiconductor devices and capacitors G11C11/34, e.g. G11C11/40)
- G11C 11/26 using discharge tubes
- G11C 11/34 using semiconductor devices
- G11C 11/42 using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically- coupled
- G11C 11/44 using super-conductive elements, e.g. cryotron
Top Applicants
Top 10 applicants by patent filingsfor 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