Filings by year

H04R 25/558: granted patents and published applications per publication year
YearGranted patentsPublished applications
197710
197800
197900
198000
198100
198200
198300
198400
198500
198610
198710
198820
198910
199040
199130
199220
199330
199440
199530
199620
199730
199850
199930
200050
200174
2002411
200336
2004521
2005521
20061327
20071636
20081018
20091420
20102241
20111529
20123631
20132835
20143739
20153952
20165665
20174875
20185465
20197674
20206582
20216981
20226968
20236163
20246175
20255558
20263146

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

Recent patents

Most cited

By later US patents