H04M 3/523

With call distribution or queueing

Official title: with call distribution or queueing

H04M3/523 (With call distribution or queueing) appears on 3,803 US grants and 3,079 published applications in this corpus.

Search patents in H04M
Granted patents
3,803
Published applications
3,079
Assignees
791
Inventors
5,110
Latest grant
6 Oct 2026

Filings by year

H04M 3/523: granted patents and published applications per publication year
YearGranted patentsPublished applications
197620
197710
197830
197910
198010
198110
198210
198320
198450
198520
198600
198720
198880
198970
1990150
1991120
199290
1993200
1994180
1995230
1996330
1997220
1998270
1999720
2000550
20017323
20027589
20037787
200410772
200565104
200684111
200761103
200853103
20094996
20107383
20118054
201212381
2013149122
2014214180
2015214190
2016200177
2017240140
2018227148
2019218101
2020210169
2021195263
2022182139
2023196170
202413393
2025112102
20265179

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

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