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IPC Subgroup
G06F 12/121

using replacement algorithms

Introduced: January 2016

Full Title

Accessing, addressing or allocating within memory systems or architectures > Addressing or allocation; Relocation > in hierarchically structured memory systems, e.g. virtual memory systems > Replacement control > using replacement algorithms

Classification Context

Section:
PHYSICS
Class:
COMPUTING OR CALCULATING; COUNTING
Subclass:
ELECTRIC DIGITAL DATA PROCESSING

4 direct subcodes

Child Classifications

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  • G06F 12/122 of the least frequently used [LFU] type, e.g. with individual count value
  • G06F 12/123 with age lists, e.g. queue, most recently used [MRU] list or least recently used [LRU] list
  • G06F 12/128 adapted to multidimensional cache systems, e.g. set-associative, multicache, multiset or multilevel

Top Applicants

Top 10 applicants by patent filingsfor class G06, 2013–2023, worldwide · Source: EPO PATSTAT

  1. SAMSUNG ELECTRONICS COMPANY KR 66,669
  2. IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 62,313
  3. MICROSOFT TECHNOLOGY LICENSING US 41,918
  4. GOOGLE US 32,969
  5. SGCC(STATE GRID CORPORATION OF CHINA) 30,822
  6. INTEL CORPORATION US 30,010
  7. TENCENT TECHNOLOGY (SHENZHEN) COMPANY 28,235
  8. HUAWEI TECHNOLOGIES COMPANY CN 26,079
  9. APPLE US 21,891
  10. HUAWEI TECHNOLOGIES COMPANY 20,505