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PCE
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DIFF Subgroup
H04L 67/568

Storing data temporarily at an intermediate stage, e.g. caching

Introduced: January 2022

Full Title

Full titles differ between systems:

IPC:

Network arrangements or protocols for supporting network services or applications > Network services > Provisioning of proxy services > Storing data temporarily at an intermediate stage, e.g. caching

CPC:

Network arrangements or protocols for supporting network services or applications (user-to-user messaging H04L51/00; network arrangements, protocols or services for supporting real-time applications in data packet communications networks H04L65/00) > Network services > Provisioning of proxy services (store-and-forward switching systems in data switching networks H04L12/54) > Storing data temporarily at an intermediate stage, e.g. caching

IPC and CPC are identically structured here. All 3 subcodes exist in both systems.

IPC defines codes here since 2022.

Child Classifications

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  • H04L 67/5681 Pre-fetching or pre-delivering data based on network characteristics since 2022 IPC+CPC Available in IPC and CPC
  • H04L 67/5682 Policies or rules for updating, deleting or replacing the stored data since 2022 IPC+CPC Available in IPC and CPC
  • H04L 67/5683 Storage of data provided by user terminals, i.e. reverse caching since 2022 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class H04,2013–2023, worldwide · Source: EPO PATSTAT

  1. QUALCOMM US 97,396
  2. HUAWEI TECHNOLOGIES COMPANY CN 96,502
  3. SAMSUNG ELECTRONICS COMPANY KR 86,981
  4. TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) SE 55,869
  5. HUAWEI TECHNOLOGIES COMPANY 55,349
  6. LG ELECTRONICS KR 53,649
  7. CANON 33,341
  8. SONY CORPORATION JP 32,761
  9. ZTE CORPORATION CN 32,274
  10. GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORPORATION 28,327

Top Applicants (CPC)

Class H04,2013–2023, worldwide · Source: EPO PATSTAT

  1. HUAWEI TECHNOLOGIES COMPANY CN 101,476
  2. QUALCOMM US 101,139
  3. SAMSUNG ELECTRONICS COMPANY KR 96,655
  4. TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) SE 57,744
  5. LG ELECTRONICS KR 55,253
  6. HUAWEI TECHNOLOGIES COMPANY 54,181
  7. SONY CORPORATION JP 35,309
  8. ZTE CORPORATION CN 32,950
  9. INTEL CORPORATION US 27,533
  10. GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORPORATION CN 27,498