H04N 21/643
Communication protocols
Official title: Communication protocols {(network streaming protocols, e.g. real-time transport protocol [RTP] or real-time control protocol [RTCP], H04L65/65)}
H04N21/643 (Communication protocols) appears on 5,016 US grants and 6,204 published applications in this corpus.
Search patents in H04N- Granted patents
- 5,016
- Published applications
- 6,204
- Assignees
- 1,252
- Inventors
- 7,699
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 7 | 0 |
| 1996 | 23 | 0 |
| 1997 | 27 | 0 |
| 1998 | 41 | 0 |
| 1999 | 39 | 0 |
| 2000 | 30 | 0 |
| 2001 | 41 | 34 |
| 2002 | 29 | 127 |
| 2003 | 36 | 115 |
| 2004 | 43 | 143 |
| 2005 | 36 | 141 |
| 2006 | 54 | 175 |
| 2007 | 57 | 254 |
| 2008 | 85 | 315 |
| 2009 | 94 | 399 |
| 2010 | 152 | 349 |
| 2011 | 196 | 260 |
| 2012 | 265 | 285 |
| 2013 | 297 | 354 |
| 2014 | 387 | 413 |
| 2015 | 355 | 466 |
| 2016 | 403 | 457 |
| 2017 | 396 | 354 |
| 2018 | 336 | 287 |
| 2019 | 317 | 283 |
| 2020 | 317 | 258 |
| 2021 | 253 | 221 |
| 2022 | 226 | 170 |
| 2023 | 182 | 131 |
| 2024 | 147 | 103 |
| 2025 | 88 | 69 |
| 2026 | 53 | 41 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method, electronic device and apparatus for transmitting media data stream, and storage medium29 Sep 2026US 12,750,411 B2Tencent Technology (Shenzhen) Company Limited
- Television and system control method29 Sep 2026US 12,750,543 B2LG Electronics Inc.
- Addressable advertisement and programmatically delivered advertisement insertion and playing29 Sep 2026US 12,750,552 B2DISH Network L.L.C.
- Routing of full motion video (FMV) streams in one-way transfer systems using out-of-band routing tables25 Aug 2026US 12,719,942 B2Microsoft Technology Licensing, LLC
- Deadline signaling for streaming of media data25 Aug 2026US 12,720,137 B2QUALCOMM Incorporated
- Techniques for dynamic resolutions8 Oct 2026US 2026/0313007 A1QUALCOMM Incorporated
- Realtime wireless synchronization of live event audio stream with a video recording8 Oct 2026US 2026/0314022 A1Bygge Technologies Inc.
- Systems and methods for delivering supplemental content over media over quic transport1 Oct 2026US 2026/0303886 A1
- Multi-mode conversion of multiple video streams1 Oct 2026US 2026/0303903 A1Boost SubscriberCo L.L.C.
- Systems and methods for personalized spatial video/light field content delivery17 Sep 2026US 2026/0281481 A1Adeia Guides Inc.
Most cited
By later US patents
- Network controller for cable television delivery systems1,167US 5,600,364 ADiscovery Communications, Inc. · 1997
- Terminal for suggesting programs offered on a television program delivery system1,065US 5,798,785 ADiscovery Communications, Inc. · 1998
- Client server based interactive television program guide system with remote server recording995US 7,761,892 B2United Video Properties, Inc. · 2010
- Television program delivery system971US 5,559,549 ADiscovery Communications, Inc. · 1996
- Interactive television program guide with remote access952US 8,046,801 B2United Video Properties, Inc. · 2011