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DIFF Main Group
H04M 15/00

Arrangements for metering, time-control or time indication

Introduced: September 1968

Title

Titles differ between systems:

IPC: Arrangements for metering, time-control or time-indication

CPC: Arrangements for metering, time-control or time indication

Full Title

Full titles differ between systems:

IPC:

Arrangements for metering, time-control or time-indication

CPC:

Arrangements for metering, time-control or time indication

Additional Content IPC

Accounting or billing specially adapted for wireless communication networks Usage measurements specially adapted for wireless communication networks

CPC subdivides this area 5x more granularly than IPC with 39 additional codes.

39 codes are CPC-only extensions, 1 exist only in IPC.

5 shared codes have differing titles between IPC and CPC.

Child Classifications

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  • H04M 15/02 Severing connection after a predetermined time IPC only IPC only
  • H04M 15/07 CPC only CPC only
  • H04M 15/08 Metering calls to called party IPC+CPC Available in IPC and CPC
  • H04M 15/09 CPC only CPC only
  • H04M 15/31 CPC only CPC only
  • H04M 15/32 metering arrangements for satellites or concentrators which connect one or more exchange lines with a group of local lines IPC+CPC Available in IPC and CPC
  • H04M 15/34 metering arrangements for private branch exchanges IPC+CPC Available in IPC and CPC
  • H04M 15/36 metering arrangements for party-lines IPC+CPC Available in IPC and CPC
  • H04M 15/38 metering by apparatus other than mechanical step-by-step counter type IPC+CPC Available in IPC and CPC
  • H04M 15/39 CPC only CPC only
  • H04M 15/41 CPC only CPC only
  • H04M 15/42 CPC only CPC only
  • H04M 15/43 CPC only CPC only
  • H04M 15/44 CPC only CPC only
  • H04M 15/46 CPC only CPC only
  • H04M 15/47 CPC only CPC only
  • H04M 15/48 CPC only CPC only

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