CPC Main Group Additional Only
H04M 2207/00 Type of exchange or network, i.e. telephonic medium, in which the telephonic communication takes place
9 direct subcodes
Child Classifications
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- H04M 2207/08 ISDN systems
- H04M 2207/12 intelligent networks
- H04M 2207/14 cable networks
- H04M 2207/18 wireless networks
- H04M 2207/20 hybrid systems
- H04M 2207/30 third party service providers
- H04M 2207/35 virtual private networks
- H04M 2207/40 terminals with audio html browser
- H04M 2207/45 public-private interworking, e.g. centrex
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