H04N 21/454

Content or additional data filtering

Official title: Content {or additional data} filtering, e.g. blocking advertisements

H04N21/454 (Content or additional data filtering) appears on 2,736 US grants and 3,367 published applications in this corpus.

Search patents in H04N
Granted patents
2,736
Published applications
3,367
Assignees
733
Inventors
4,830
Latest grant
22 Sep 2026

Filings by year

H04N 21/454: granted patents and published applications per publication year
YearGranted patentsPublished applications
198110
198200
198300
198400
198500
198620
198710
198830
198910
199020
199140
199220
199340
199410
199560
1996140
1997150
1998250
1999340
2000460
20014448
200241186
200336187
200447111
200545129
200680121
200752168
200850112
200971131
2010118118
2011118137
2012106129
2013149137
2014205236
2015187197
2016181162
2017134113
2018122112
2019103116
2020120129
2021114122
2022117117
2023109120
20249487
20259484
20263858

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

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By later US patents