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IPC Main Group
G11C 19/00

Digital stores in which the information is moved stepwise, e.g. shift registers

Introduced: September 1968

Last revised: January 2006

Classification Context

Section:
PHYSICS
Class:
INFORMATION STORAGE
Subclass:
STATIC STORES

10 direct subcodes

Child Classifications

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  • G11C 19/12 using non-linear reactive devices in resonant circuits
  • G11C 19/14 using magnetic elements in combination with active elements, e.g. discharge tubes, semiconductor elements
  • G11C 19/18 using capacitors as main elements of the stages
  • G11C 19/2 using discharge tubes
  • G11C 19/28 using semiconductor elements
  • G11C 19/3 using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled
  • G11C 19/32 using super-conductive elements
  • G11C 19/38 two-dimensional [2D], e.g. horizontal and vertical shift registers

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