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IPC Main Group
H04L 51/00

User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail

Introduced: January 2022

Classification Context

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

Scope Notes

Glossary: Social network Social networks Websites and applications for the informal communication and sharing of information with other users. Store and forward A telecommunications technique in which information is sent to an intermediate station where it is kept and sent at a later time to the final destination or to another intermediate station Instant messaging (IM) Instant messaging IM Real-time transmission and exchange of short messages between two parties

10 direct subcodes

Child Classifications

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  • H04L 51/02 using automatic reactions or user delegation, e.g. automatic replies or chatbot-generated messages
  • H04L 51/42 Mailbox-related aspects, e.g. synchronisation of mailboxes
  • H04L 51/48 Message addressing, e.g. address format or anonymous messages, aliases
  • H04L 51/52 for supporting social networking services
  • H04L 51/56 Unified messaging, e.g. interactions between e-mail, instant messaging or converged IP messaging [CPM]
  • H04L 51/58 Message adaptation for wireless communication