Filings by year

H04R 1/222: granted patents and published applications per publication year
YearGranted patentsPublished applications
197610
197710
197820
197920
198000
198130
198230
198320
198450
198530
198620
198720
198820
198930
199020
199100
199240
199320
199430
199500
199600
199710
199800
199920
200000
200102
200201
200300
200431
200523
200622
200703
200822
200912
201005
201132
201236
201388
2014128
2015239
20161218
20172021
20181918
20192727
20201622
20212524
20222025
20232733
20241915
20252616
202679

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

Recent patents

Most cited

By later US patents