Filings by year

H04R 25/552: granted patents and published applications per publication year
YearGranted patentsPublished applications
198510
198600
198700
198800
198900
199010
199110
199210
199310
199410
199520
199620
199720
199840
199950
200010
200143
200227
200324
2004519
2005211
20061111
20071119
2008625
20091329
20101234
20111133
20123447
20133640
20143662
20154760
20167968
20176988
20189188
20199688
20208788
20217774
20226278
20235852
20245272
20254959
20264249

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

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By later US patents