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PCE
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CPC Subgroup
H04Q 3/32

Circuit arrangements for second or subsequent stages of hunting switching

Full Title

Selecting arrangements (H04Q5/00 - H04Q11/00 take precedence) > Circuit arrangements for second or subsequent stages of hunting switching

4 direct subcodes

Child Classifications

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  • H04Q 3/34 for the second preselection stage
  • H04Q 3/36 for the second line-finder stage
  • H04Q 3/38 for stages after the group selector stage
  • H04Q 3/40 for stages after the line selector, e.g. for extension selector

Top Applicants

Top 10 applicants by patent filingsfor 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