H04R 25/55

Electric hearing aids: using an external connection, either wireless or wired

Official title: {using an external connection, either wireless or wired}

H04R25/55 (Electric hearing aids: using an external connection, either wireless or wired) appears on 3,528 US grants and 4,311 published applications in this corpus.

Search patents in H04R
Granted patents
3,528
Published applications
4,311
Assignees
616
Inventors
4,042
Latest grant
6 Oct 2026

Filings by year

H04R 25/55: granted patents and published applications per publication year
YearGranted patentsPublished applications
197710
197800
197910
198000
198110
198210
198310
198430
198550
198610
198710
198830
198920
1990120
199170
199260
199380
199490
199580
1996100
199780
1998200
199980
2000170
20011410
20021229
20031923
20042168
20051360
20064367
200736101
20083680
20094393
201061133
201150108
2012113132
2013114157
2014139178
2015150213
2016211220
2017202272
2018231258
2019281268
2020289292
2021239312
2022247299
2023238262
2024234263
2025224235
2026135178

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

Subgroups

Granted patents