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
Filing statistics
CPC H04L 2463/00 belongs to the parent subclass H04L, which recorded 1,567,994 patent applications worldwide between 2013 and 2023. Annual filings grew from 97,627 in 2013 to 139,810 in 2023 (+43%), peaking at 168,964 applications in 2020. The most active applicants in class H04 are HUAWEI TECHNOLOGIES COMPANY (101,476 applications), QUALCOMM (101,139 applications) and SAMSUNG ELECTRONICS COMPANY (96,655 applications).
Source: EPO PATSTAT, worldwide filings
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
- HUAWEI TECHNOLOGIES COMPANY CN 101,476
- QUALCOMM US 101,139
- SAMSUNG ELECTRONICS COMPANY KR 96,655
- TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) SE 57,744
- LG ELECTRONICS KR 55,253
- HUAWEI TECHNOLOGIES COMPANY 54,181
- SONY CORPORATION JP 35,309
- ZTE CORPORATION CN 32,950
- INTEL CORPORATION US 27,533
- GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORPORATION CN 27,498