CPC Subgroup Additional Only
H04B 2203/5429 Applications for powerline communications
Full Title
Indexing scheme relating to line transmission systems > Aspects of powerline communications not already covered by H04B3/54 and its subgroups > Applications for powerline communications
7 direct subcodes
Child Classifications
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- H04B 2203/5433 Remote metering
- H04B 2203/5437 Wired telephone
- H04B 2203/5441 Wireless systems or telephone
- H04B 2203/5445 Local network
- H04B 2203/545 Audio/video application, e.g. interphone
- H04B 2203/5454 Adapter and plugs
- H04B 2203/5458 Monitor sensor; Alarm systems
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