CPC Subgroup
G06F 12/121 using replacement algorithms
Full Title
Accessing, addressing or allocating within memory systems or architectures (digital input from, or digital output to record carriers, e.g. to disk storage units, G06F3/06) > Addressing or allocation; Relocation (program address sequencing G06F9/00; arrangements for selecting an address in a digital store G11C8/00) > in hierarchically structured memory systems, e.g. virtual memory systems > Replacement control > using replacement algorithms
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 12/126 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 76,952
- IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 62,841
- MICROSOFT TECHNOLOGY LICENSING US 44,778
- GOOGLE US 35,735
- INTEL CORPORATION US 32,087
- HUAWEI TECHNOLOGIES COMPANY CN 30,572
- TENCENT TECHNOLOGY (SHENZHEN) COMPANY 25,023
- APPLE US 23,482
- SGCC(STATE GRID CORPORATION OF CHINA) 22,548
- HUAWEI TECHNOLOGIES COMPANY 20,917