CPC Main Group Additional Only
H04T 2001/00 Standards for wireless communication networks
19 direct subcodes
Child Classifications
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- H04T 2001/101 Radio Resources
- H04T 2001/103 Core Network Resources
- H04T 2001/105 Network/Interface/Protocol Extensions
- H04T 2001/107 Overlay Network Resources
- H04T 2001/109 Codecs
- H04T 2001/111 Terminal
- H04T 2001/113 SIM, USIM
- H04T 2001/201 Physical layer functions
- H04T 2001/203 Traffic; Transport
- H04T 2001/205 Signalling; Control
- H04T 2001/207 Mobility
- H04T 2001/209 Applications
- H04T 2001/211 Testing and Conformance
- H04T 2001/213 Planning
- H04T 2001/215 Billing; Accounting; Charging
- H04T 2001/217 Configuration and Fault Management; Operation and Maintenance
- H04T 2001/219 Interworking
- H04T 2001/221 Security
- H04T 2001/231 Architecture; Topology; Principles; Requirements
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