H04N 21/61
Network physical structure
Official title: Network physical structure; Signal processing (H04B takes precedence)
H04N21/61 (Network physical structure) appears on 9,486 US grants and 12,176 published applications in this corpus.
Search patents in H04N- Granted patents
- 9,486
- Published applications
- 12,176
- Assignees
- 2,267
- Inventors
- 14,269
- Latest grant
- 6 Oct 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 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 8 | 0 |
| 1995 | 14 | 0 |
| 1996 | 21 | 0 |
| 1997 | 32 | 0 |
| 1998 | 37 | 0 |
| 1999 | 57 | 0 |
| 2000 | 76 | 0 |
| 2001 | 97 | 87 |
| 2002 | 72 | 431 |
| 2003 | 79 | 344 |
| 2004 | 109 | 436 |
| 2005 | 98 | 446 |
| 2006 | 182 | 497 |
| 2007 | 179 | 561 |
| 2008 | 160 | 583 |
| 2009 | 251 | 696 |
| 2010 | 346 | 575 |
| 2011 | 368 | 544 |
| 2012 | 444 | 525 |
| 2013 | 552 | 675 |
| 2014 | 754 | 875 |
| 2015 | 754 | 756 |
| 2016 | 704 | 772 |
| 2017 | 749 | 715 |
| 2018 | 663 | 548 |
| 2019 | 611 | 447 |
| 2020 | 500 | 396 |
| 2021 | 404 | 358 |
| 2022 | 319 | 285 |
| 2023 | 333 | 255 |
| 2024 | 247 | 166 |
| 2025 | 177 | 135 |
| 2026 | 74 | 68 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Updating media devices in a local network with a client-server architecture6 Oct 2026US 12,756,624 B2DISH Network L.L.C.
- Transmitting method, receiving method, transmitting apparatus, and receiving apparatus6 Oct 2026US 12,756,885 B2Panasonic Intellectual Property Corporation of America
- Facilitating streaming in a local network with a client-server architecture29 Sep 2026US 12,750,277 B2DISH Network L.L.C.
- Multi-interface streaming media system1 Sep 2026US 12,726,673 B2Roku, Inc.
- System and method for determination and reconstruction of video and entertainment sessions in packet data networks25 Aug 2026US 12,720,142 B2AT&T Intellectual Property I, L. P.
- Control Information for a Wirelessly-Transmitted Data Stream1 Oct 2026US 2026/0303891 A1HyperX Holdings LLC
- Application-Level Content Control for Direct-to-Cell Satellite Coverage1 Oct 2026US 2026/0303924 A1AT&T Intellectual Property I, L. P.
- System and Method for Distributed Data Center and Power System1 Oct 2026US 2026/0303925 A1
- Video Fragment File Processing10 Sep 2026US 2026/0270507 A1Comcast Cable Communications, LLC
- Information processing system, server, user terminal, and service providing method3 Sep 2026US 2026/0261331 A1Innovative Space Carrier Inc.
Most cited
By later US patents
- Systems and methods for displaying and recording control interface with television programs, video, advertising information and program scheduling information2,572US 6,177,931 B1Index Systems, Inc. · 2001
- System and method for request, delivery and use of multimedia files for audiovisual entertainment in the home environment1,801US 6,778,869 B2Sony Corporation · 2004
- Inter-active program guide with default selection control1,314US 5,850,218 ATime Warner Entertainment Co., L. P. · 1998
- Television schedule system1,133US 5,353,121 AStarsight Telecast, Inc. · 1994
- Client server based interactive television program guide system with remote server recording995US 7,761,892 B2United Video Properties, Inc. · 2010