CPC Subgroup Additional Only
H04B 2203/5462 Systems for power line communications
Full Title
Indexing scheme relating to line transmission systems > Aspects of powerline communications not already covered by H04B3/54 and its subgroups > Systems for power line communications
7 direct subcodes
Child Classifications
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- H04B 2203/5466 using three phases conductors
- H04B 2203/547 via DC power distribution
- H04B 2203/5475 adapted for drill or well combined with data transmission
- H04B 2203/5479 using repeaters
- H04B 2203/5483 using coupling circuits
- H04B 2203/5491 using filtering and bypassing
- H04B 2203/5495 having measurements and testing channel
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