H04R 29/004

Monitoring arrangements: for microphones

Official title: {for microphones (H04R29/007 takes precedence)}

H04R29/004 (Monitoring arrangements: for microphones) appears on 1,487 US grants and 1,619 published applications in this corpus.

Search patents in H04R
Granted patents
1,487
Published applications
1,619
Assignees
578
Inventors
2,874
Latest grant
6 Oct 2026

Filings by year

H04R 29/004: granted patents and published applications per publication year
YearGranted patentsPublished applications
197810
197910
198030
198110
198210
198300
198400
198500
198610
198710
198800
198910
199010
199110
199220
199310
199400
199550
199650
199710
199870
199930
200030
200132
2002313
200358
2004415
2005614
20061810
2007520
200867
20091017
2010614
20111617
20121440
20131641
20142974
20154690
2016107123
2017156154
2018127107
2019140107
2020124155
2021124150
2022124134
2023126102
202410380
20258270
20264855

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

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