H04M 2250/00

Details of telephonic subscriber devices

H04M2250/00 (Details of telephonic subscriber devices) appears on 15,975 US grants and 20,695 published applications in this corpus.

Search patents in H04M
Granted patents
15,975
Published applications
20,695
Assignees
3,161
Inventors
29,127
Latest grant
6 Oct 2026

Filings by year

H04M 2250/00: granted patents and published applications per publication year
YearGranted patentsPublished applications
197910
198000
198100
198200
198300
198400
198500
198600
198720
198820
198970
199010
199110
199250
199390
1994140
1995250
1996260
1997340
1998430
1999500
2000680
20019987
2002103310
2003130343
2004141532
2005175710
2006332837
2007346972
2008357988
20093891110
20105101188
20116871034
20129541096
201310351247
201411141317
201510511264
201611691126
201711381145
2018986922
20191027847
2020924886
2021728696
2022662666
2023548525
2024501405
2025402277
2026179165

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

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