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CPC Subgroup
H04L 69/16

Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]

Full Title

Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass (networks security protocols H04L9/40; wireless communication networks H04W) > Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]

8 direct subcodes

Child Classifications

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  • H04L 69/163 In-band adaptation of TCP data exchange; In-band control procedures
  • H04L 69/164 Adaptation or special uses of UDP protocol
  • H04L 69/165 Combined use of TCP and UDP protocols; selection criteria therefor
  • H04L 69/166 IP fragmentation; TCP segmentation
  • H04L 69/167 Adaptation for transition between two IP versions, e.g. between IPv4 and IPv6 (translation of Internet protocol [IP] addresses H04L61/2503)
  • H04L 69/168 specially adapted for link layer protocols, e.g. asynchronous transfer mode [ATM], synchronous optical network [SONET] or point-to-point protocol [PPP]

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