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CPC Subgroup
H04L 47/12

Avoiding congestion; Recovering from congestion

Full Title

Traffic control in data switching networks (arrangements for detecting or preventing errors in the information received H04L1/00) > Flow control; Congestion control > Avoiding congestion; Recovering from congestion

4 direct subcodes

Child Classifications

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  • H04L 47/122 by diverting traffic away from congested entities
  • H04L 47/125 by balancing the load, e.g. traffic engineering
  • H04L 47/127 by using congestion prediction
  • H04L 47/129 at the destination endpoint, e.g. reservation of terminal resources or buffer space

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