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IPC Subgroup
G11C 15/04

using semiconductor elements

Introduced: July 1974

Last revised: January 2006

Full Title

Digital stores in which information comprising one or more characteristic parts is written into the store and in which information is read-out by searching for one or more of these characteristic parts, i.e. associative or content-addressed stores > using semiconductor elements

Classification Context

Section:
PHYSICS
Class:
INFORMATION STORAGE
Subclass:
STATIC STORES

Filing statistics

IPC G11C 15/04 belongs to the parent subclass G11C, which recorded 132,701 patent applications worldwide between 2013 and 2023. Annual filings grew from 10,722 in 2013 to 11,789 in 2023 (+10%), peaking at 14,304 applications in 2021. The most active applicants in class G11 are MICRON TECHNOLOGY (10,574 applications), SK HYNIX (9,138 applications) and SAMSUNG ELECTRONICS COMPANY (9,004 applications).

Source: EPO PATSTAT, worldwide filings

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