H04M 15/52

Arrangements for metering, time-control or time indication: for operator independent billing system

Official title: {for operator independent billing system}

H04M15/52 (Arrangements for metering, time-control or time indication: for operator independent billing system) appears on 100 US grants and 132 published applications in this corpus.

Search patents in H04M
Granted patents
100
Published applications
132
Assignees
70
Inventors
241
Latest grant
31 Dec 2024

Filings by year

H04M 15/52: granted patents and published applications per publication year
YearGranted patentsPublished applications
199420
199500
199600
199700
199810
199900
200000
200103
2002117
200328
200407
200508
200624
2007411
200833
2009310
201073
201154
2012108
2013911
2014148
201584
201678
201764
201842
201902
202061
202124
202211
202310
202420
202501

By publication year. Applications have been published since 2001.

Recent patents

Most cited

By later US patents