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CPC Main Group Additional Only
H04L 2463/00

Additional details relating to network architectures or network communication protocols for network security covered by H04L63/00

15 direct subcodes

Child Classifications

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  • H04L 2463/041 using an encryption or decryption engine integrated in transmitted data
  • H04L 2463/061 applying further key derivation, e.g. deriving traffic keys from a pair-wise master key
  • H04L 2463/062 applying encryption of the keys
  • H04L 2463/081 applying self-generating credentials, e.g. instead of receiving credentials from an authority or from another peer, the credentials are generated at the entity itself
  • H04L 2463/082 applying multi-factor authentication
  • H04L 2463/101 applying security measures for digital rights management
  • H04L 2463/102 applying security measure for e-commerce
  • H04L 2463/103 applying security measure for protecting copyright
  • H04L 2463/121 Timestamp
  • H04L 2463/141 Denial of service attacks against endpoints in a network
  • H04L 2463/142 Denial of service attacks against network infrastructure
  • H04L 2463/143 Denial of service attacks involving systematic or selective dropping of packets
  • H04L 2463/144 Detection or countermeasures against botnets
  • H04L 2463/145 Detection or countermeasures against cache poisoning
  • H04L 2463/146 Tracing the source of attacks

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