IPC Main Group
H04L 49/00 Packet switching elements
Introduced: January 2022
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC COMMUNICATION TECHNIQUE
- Subclass:
- TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
12 direct subcodes
Child Classifications
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- H04L 49/1 characterised by the switching fabric construction
- H04L 49/15 Interconnection of switching modules
- H04L 49/2 Support for services
- H04L 49/25 Routing or path finding in a switch fabric
- H04L 49/35 Switches specially adapted for specific applications
- H04L 49/4 Constructional details, e.g. power supply, mechanical construction or backplane
- H04L 49/45 Arrangements for providing or supporting expansion
- H04L 49/5 Overload detection or protection within a single switching element
- H04L 49/55 Prevention, detection or correction of errors
- H04L 49/6 Software-defined switches
- H04L 49/65 Re-configuration of fast packet switches
- H04L 49/9 Buffering arrangements
Top Applicants
Top 10 applicants by patent filingsfor class H04, 2013–2023, worldwide · Source: EPO PATSTAT
- QUALCOMM US 97,396
- HUAWEI TECHNOLOGIES COMPANY CN 96,502
- SAMSUNG ELECTRONICS COMPANY KR 86,981
- TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) SE 55,869
- HUAWEI TECHNOLOGIES COMPANY 55,349
- LG ELECTRONICS KR 53,649
- CANON 33,341
- SONY CORPORATION JP 32,761
- ZTE CORPORATION CN 32,274
- GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORPORATION 28,327