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CPC Subgroup
H04L 49/10

characterised by the switching fabric construction

Full Title

Packet switching elements > characterised by the switching fabric construction

8 direct subcodes

Child Classifications

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  • H04L 49/101 using crossbar or matrix
  • H04L 49/102 using shared medium, e.g. bus or ring
  • H04L 49/103 using a shared central buffer; using a shared memory
  • H04L 49/109 Integrated on microchip, e.g. switch-on-chip
  • H04L 49/111 Switch interfaces, e.g. port details
  • H04L 49/112 Switch control, e.g. arbitration

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