H04N 21/6156
Specially adapted to the upstream path of the transmission network
Official title: {specially adapted to the upstream path of the transmission network}
H04N21/6156 (Specially adapted to the upstream path of the transmission network) appears on 3,332 US grants and 4,262 published applications in this corpus.
Search patents in H04N- Granted patents
- 3,332
- Published applications
- 4,262
- Assignees
- 978
- Inventors
- 5,302
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 6 | 0 |
| 1996 | 10 | 0 |
| 1997 | 20 | 0 |
| 1998 | 18 | 0 |
| 1999 | 22 | 0 |
| 2000 | 42 | 0 |
| 2001 | 37 | 30 |
| 2002 | 33 | 169 |
| 2003 | 34 | 112 |
| 2004 | 51 | 194 |
| 2005 | 41 | 196 |
| 2006 | 81 | 200 |
| 2007 | 74 | 246 |
| 2008 | 82 | 213 |
| 2009 | 129 | 222 |
| 2010 | 143 | 202 |
| 2011 | 136 | 166 |
| 2012 | 157 | 186 |
| 2013 | 199 | 234 |
| 2014 | 277 | 398 |
| 2015 | 286 | 299 |
| 2016 | 254 | 248 |
| 2017 | 245 | 198 |
| 2018 | 197 | 158 |
| 2019 | 174 | 127 |
| 2020 | 142 | 106 |
| 2021 | 96 | 98 |
| 2022 | 88 | 83 |
| 2023 | 103 | 68 |
| 2024 | 68 | 53 |
| 2025 | 50 | 38 |
| 2026 | 24 | 18 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H04N 21/6175Involving transmission via internet1,381
- H04N 21/6168Involving cable transmission969
- H04N 21/6181Involving transmission via a mobile phone network500
- H04N 21/6187Involving transmission via a telephone network344
- H04N 21/6193Involving transmission via a satellite303
- H04N 21/6162Involving terrestrial transmission127
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By later US patents
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- Method and apparatus for viewing of on-line information service chat data incorporated in a broadcast television program651US 5,694,163 AIntel Corporation · 1997
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