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PCE
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DIFF Subgroup
G06F 21/52

during program execution, e.g. stack integrity

Introduced: January 2013

Title

Titles differ between systems:

IPC: during program execution, e.g. stack integrity, buffer overflow or preventing unwanted data erasure

CPC: during program execution, e.g. stack integrity

Full Title

Full titles differ between systems:

IPC:

Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity > Monitoring users, programs or devices to maintain the integrity of platforms, e.g. of processors, firmware or operating systems > during program execution, e.g. stack integrity, buffer overflow or preventing unwanted data erasure

CPC:

Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity > Monitoring users, programs or devices to maintain the integrity of platforms, e.g. of processors, firmware or operating systems > during program execution, e.g. stack integrity

IPC and CPC are identically structured here. All 2 subcodes exist in both systems.

IPC defines codes here since 2013.

Child Classifications

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  • G06F 21/53 by executing in a restricted environment, e.g. sandbox or secure virtual machine since 2013 IPC+CPC Available in IPC and CPC
  • G06F 21/54 by adding security routines or objects to programs since 2013 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

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

Top Applicants (CPC)

Class G06,2013–2023, worldwide · Source: EPO PATSTAT

  1. SAMSUNG ELECTRONICS COMPANY KR 76,952
  2. IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 62,841
  3. MICROSOFT TECHNOLOGY LICENSING US 44,778
  4. GOOGLE US 35,735
  5. INTEL CORPORATION US 32,087
  6. HUAWEI TECHNOLOGIES COMPANY CN 30,572
  7. TENCENT TECHNOLOGY (SHENZHEN) COMPANY 25,023
  8. APPLE US 23,482
  9. SGCC(STATE GRID CORPORATION OF CHINA) 22,548
  10. HUAWEI TECHNOLOGIES COMPANY 20,917