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
Navigate with arrow keys, Enter to open
- 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 12/126 with special data handling, e.g. priority of data or instructions, handling errors or pinning
- 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
- SAMSUNG ELECTRONICS COMPANY KR 66,669
- IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 62,313
- MICROSOFT TECHNOLOGY LICENSING US 41,918
- GOOGLE US 32,969
- SGCC(STATE GRID CORPORATION OF CHINA) 30,822
- INTEL CORPORATION US 30,010
- TENCENT TECHNOLOGY (SHENZHEN) COMPANY 28,235
- HUAWEI TECHNOLOGIES COMPANY CN 26,079
- APPLE US 21,891
- HUAWEI TECHNOLOGIES COMPANY 20,505