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CPC Subgroup
H04L 67/01

Protocols

Full Title

Network arrangements or protocols for supporting network services or applications (user-to-user messaging H04L51/00; network arrangements, protocols or services for supporting real-time applications in data packet communications networks H04L65/00) > Protocols

9 direct subcodes

Child Classifications

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  • H04L 67/04 specially adapted for terminals or networks with limited capabilities; specially adapted for terminal portability
  • H04L 67/06 specially adapted for file transfer, e.g. file transfer protocol [FTP]
  • H04L 67/08 specially adapted for terminal emulation, e.g. Telnet
  • H04L 67/131 Protocols for games, networked simulations or virtual reality
  • H04L 67/133 Protocols for remote procedure calls [RPC]
  • H04L 67/1396 specially adapted for monitoring users' activity

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