Arrangements for metering, time-control or time-indication

Introduced: September 1968

Last revised: January 2024

Classification Context

Accounting or billing specially adapted for wireless communication networks Usage measurements specially adapted for wireless communication networks

COUNTING of channel usage in time units or in connections in telephonyMETERING of telephone connections

9 direct subcodes

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H04M 15/02 Severing connection after a predetermined time
H04M 15/04 Recording calls in printed, perforated, or other permanent form
H04M 15/08 Metering calls to called party
H04M 15/1 Metering calls from calling party
H04M 15/28 with meter at substation
H04M 15/32 Metering arrangements for satellites or concentrators which connect one or more exchange lines with a group of local lines
H04M 15/34 Metering arrangements for private branch exchanges
H04M 15/36 Metering arrangements for party-lines
H04M 15/38 Metering by apparatus other than mechanical step-by-step counter type

Top 10 applicants by patent filingsfor class H04, 2013–2023, worldwide · Source: EPO PATSTAT