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DIFF Subgroup
H04W 4/20

Services signaling; Auxiliary data signalling, i.e. transmitting data via a non-traffic channel

Introduced: January 2009

Title

Titles differ between systems:

IPC: Services signalling; Auxiliary data signalling, i.e. transmitting data via a non-traffic channel

CPC: Services signaling; Auxiliary data signalling, i.e. transmitting data via a non-traffic channel

Full Title

Full titles differ between systems:

IPC:

Services specially adapted for wireless communication networks; Facilities therefor > Services signalling; Auxiliary data signalling, i.e. transmitting data via a non-traffic channel

CPC:

Services specially adapted for wireless communication networks; Facilities therefor > Services signaling; Auxiliary data signalling, i.e. transmitting data via a non-traffic channel

Additional Content IPC

Application signalling information means information produced and delivered by the network to the user, in order to control operation or inform the user (battery status, application usage, metering information: Home Energy Monitor, Google Powermeter and Apple Smart-Home Energy Management).

Of 3 combined children, 2 exist in both systems.

1 codes are CPC-only extensions.

IPC defines codes here since 2018.

Child Classifications

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  • H04W 4/203 CPC only CPC only
  • H04W 4/21 for social networking applications since 2018 IPC+CPC Available in IPC and CPC
  • H04W 4/23 for mobile advertising since 2018 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