Skip to content
Search Classifications
Search for IPC and CPC classification codes or keywords
DIFF Subgroup
H04B 17/17

Detection of non-compliance or faulty performance, e.g. response deviations (H04B17/18 takes precedence)

Introduced: January 2015

Title

Titles differ between systems:

IPC: Detection of non-compliance or faulty performance, e.g. response deviations

CPC: Detection of non-compliance or faulty performance, e.g. response deviations (H04B17/18 takes precedence)

Full Title

Full titles differ between systems:

IPC:

Monitoring; Testing > of transmitters > Performance testing > Detection of non-compliance or faulty performance, e.g. response deviations

CPC:

Monitoring; Testing (of line transmission systems H04B3/46; arrangements for monitoring or testing transmission systems employing electromagnetic waves other than radio waves H04B10/07) > of transmitters > Performance testing > Detection of non-compliance or faulty performance, e.g. response deviations (H04B17/18 takes precedence)

Additional Content IPC

Monitoring during normal operation

No child classifications to compare. This is a leaf node in both 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