H04M 2203/4509

Unified messaging with single point of access to voicemail and other mail

Official title: Unified messaging with single point of access to voicemail and other mail or messaging systems

H04M2203/4509 (Unified messaging with single point of access to voicemail and other mail) appears on 307 US grants and 281 published applications in this corpus.

Search patents in H04M
Granted patents
307
Published applications
281
Assignees
145
Inventors
558
Latest grant
18 Aug 2026

Filings by year

H04M 2203/4509: granted patents and published applications per publication year
YearGranted patentsPublished applications
198910
199000
199100
199200
199300
199410
199530
199670
199780
199890
199990
200030
200134
20021113
20031031
20041317
2005520
20061728
20071421
20081215
20091220
20101215
20111418
2012259
20131713
20142710
20151211
20161314
2017157
2018135
201953
202042
202152
202222
202300
202431
202510
202610

By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.

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