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CPC Subclass Not Allocatable
G11C

STATIC STORES (semiconductor memory devices H10B)

Description

G11C covers non-volatile and volatile memory devices that retain stored information without requiring mechanical movement or constant refresh cycles. This includes semiconductor memories such as read-only memory (ROM), programmable ROM (PROM), electrically erasable PROM (EEPROM), flash memory, and static random-access memory (SRAM), as well as related storage architectures and access methods. The classification encompasses memory cell designs, addressing schemes, control circuits, and peripheral circuits integral to static memory operation. Adjacent dynamic memory technologies requiring periodic refresh, magnetic storage media, and optical storage systems are classified separately in related G11 subclasses.

21 direct subcodes

Child Classifications

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  • G11C 23/00 Digital stores characterised by movement of mechanical parts to effect storage, e.g. using balls; Storage elements therefor
  • G11C 25/00 Digital stores characterised by the use of flowing media; Storage elements therefor

Top Applicants

Top 10 applicants by patent filingsfor class G11, 2013–2023, worldwide · Source: EPO PATSTAT

  1. MICRON TECHNOLOGY US 12,397
  2. SAMSUNG ELECTRONICS COMPANY KR 12,238
  3. SK HYNIX KR 11,371
  4. TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 4,601
  5. INTEL CORPORATION US 3,874
  6. IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 3,866
  7. SANDISK TECHNOLOGIES US 3,151
  8. SK HYNIX 3,143
  9. SAMSUNG ELECTRONICS COMPANY 3,073
  10. WESTERN DIGITAL TECHNOLOGIES US 2,961