Filings by year

H04N 19/51: granted patents and published applications per publication year
YearGranted patentsPublished applications
197910
198030
198120
198200
198330
198420
198510
198640
1987160
1988120
1989220
1990210
1991350
1992420
1993500
1994490
1995870
19961220
19971380
19982070
19991750
20001640
200115373
2002164196
2003170282
2004152304
2005162437
2006199410
2007182520
2008194496
2009172593
2010374723
2011345402
2012526454
2013505643
2014608722
2015539862
2016661650
2017720618
2018706658
2019697757
2020852973
20217901114
20228911142
20239791034
202411791348
202510781199
2026699904

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

Subgroups

Granted patents
All 18 subgroups

Recent patents

Most cited

By later US patents