H04Q 3/42 Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
Full Title
Selecting arrangements (H04Q5/00 - H04Q11/00 take precedence) > Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
Filing statistics
CPC H04Q 3/42 belongs to the parent subclass H04Q, which recorded 55,205 patent applications worldwide between 2013 and 2023. Annual filings grew from 3,939 in 2013 to 5,112 in 2023 (+30%), peaking at 6,044 applications in 2021. The most active applicants in class H04 are HUAWEI TECHNOLOGIES COMPANY (101,476 applications), QUALCOMM (101,139 applications) and SAMSUNG ELECTRONICS COMPANY (96,655 applications).
Source: EPO PATSTAT, worldwide filings
7 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- H04Q 3/44 using revertive control
- H04Q 3/46 using signals other than revertive impulses
- H04Q 3/47 using translators
- H04Q 3/48 using markers
- H04Q 3/52 using static devices in switching stages, e.g. electronic switching arrangements
- H04Q 3/54 in which the logic circuitry controlling the exchange is centralised
- H04Q 3/56 in which the control signals are multiplexed
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