H04M 2203/257

Remote control of substation user interface for telephonic services

Official title: remote control of substation user interface for telephonic services, e.g. by ISDN stimulus, ADSI, wireless telephony application WTA, MExE or BREW

H04M2203/257 (Remote control of substation user interface for telephonic services) appears on 21 US grants and 26 published applications in this corpus.

Search patents in H04M
Granted patents
21
Published applications
26
Assignees
22
Inventors
66
Latest grant
26 Sep 2023

Filings by year

H04M 2203/257: granted patents and published applications per publication year
YearGranted patentsPublished applications
200201
200300
200410
200502
200610
200712
200802
200902
201011
201111
201221
201301
201411
201511
201631
201711
201811
201921
202003
202144
202200
202310

By publication year.

Recent patents

Most cited

By later US patents