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IPC Subgroup
H04L 49/113

Arrangements for redundant switching, e.g. using parallel planes

Introduced: January 2022

Full Title

Packet switching elements > characterised by the switching fabric construction > Arrangements for redundant switching, e.g. using parallel planes

Classification Context

Section:
ELECTRICITY
Class:
ELECTRIC COMMUNICATION TECHNIQUE
Subclass:
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION

3 direct subcodes

Child Classifications

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  • H04L 49/115 Transferring a complete packet or cell through each plane
  • H04L 49/116 Transferring a part of the packet through each plane, e.g. by bit-slicing
  • H04L 49/118 Address processing within a device, e.g. using internal ID or tags for routing within a switch

Top Applicants

Top 10 applicants by patent filingsfor 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