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IPC Subgroup
G11C 11/21

using electric elements

Introduced: July 1974

Last revised: January 2006

Full Title

Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor > using electric elements

Classification Context

Section:
PHYSICS
Class:
INFORMATION STORAGE
Subclass:
STATIC STORES

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
  • G11C 11/24 using capacitors
  • 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

  1. MICRON TECHNOLOGY US 10,574
  2. SK HYNIX KR 9,138
  3. SAMSUNG ELECTRONICS COMPANY KR 9,004
  4. TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 3,739
  5. IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 3,443
  6. INTEL CORPORATION US 2,952
  7. SANDISK TECHNOLOGIES US 2,905
  8. WESTERN DIGITAL TECHNOLOGIES US 2,630
  9. TOSHIBA CORPORATION JP 2,593
  10. SEAGATE TECHNOLOGY US 2,472