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CPC Subgroup
H04H 20/79

using downlink of the CATV systems, e.g. audio broadcast via CATV network

Full Title

Arrangements for broadcast or for distribution combined with broadcast > Arrangements characterised by transmission systems for broadcast > Wired systems > using carrier waves > CATV [Community Antenna Television] systems > using downlink of the CATV systems, e.g. audio broadcast via CATV network

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