CPC Subgroup
H04Q 1/02 Constructional details
Full Title
Details of selecting apparatus or arrangements > Constructional details
17 direct subcodes
Child Classifications
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- H04Q 1/04 Frames or mounting racks for selector switches; Accessories therefor, e.g. frame cover
- H04Q 1/06 Cable ducts or mountings specially adapted for exchange installations
- H04Q 1/08 Frames or mounting racks for relays; Accessories therefor
- H04Q 1/10 Exchange station construction
- H04Q 1/12 Arrangements of multiple bars with or without pivotable frames
- H04Q 1/14 Distribution frames
- H04Q 1/16 Wiring arrangements for selector switches or relays in frames
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