CPC Subgroup
H04M 15/12 Discriminative metering
Full Title
Arrangements for metering, time-control or time indication > Metering calls from calling party > Discriminative metering
5 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- H04M 15/14 according to class of calling party
- H04M 15/16 according to connection obtained
- H04M 15/18 according to duration of the call
- H04M 15/22 according to time of day
- H04M 15/24 preventing metering of tax-free calls to certain lines, e.g. to fire or ambulance stations
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