H04N 21/2183
Cache memory
Official title: Cache memory {(caches in web servers or browsers G06F16/9574; intermediate storage and caching in data networks H04L67/568)}
H04N21/2183 (Cache memory) appears on 196 US grants and 231 published applications in this corpus.
Search patents in H04N- Granted patents
- 196
- Published applications
- 231
- Assignees
- 121
- Inventors
- 405
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 6 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 3 | 0 |
| 2007 | 0 | 2 |
| 2008 | 0 | 2 |
| 2009 | 0 | 6 |
| 2010 | 1 | 1 |
| 2011 | 1 | 6 |
| 2012 | 3 | 7 |
| 2013 | 3 | 26 |
| 2014 | 11 | 12 |
| 2015 | 16 | 15 |
| 2016 | 22 | 23 |
| 2017 | 12 | 13 |
| 2018 | 13 | 11 |
| 2019 | 16 | 17 |
| 2020 | 16 | 17 |
| 2021 | 16 | 13 |
| 2022 | 18 | 15 |
| 2023 | 10 | 8 |
| 2024 | 15 | 13 |
| 2025 | 9 | 10 |
| 2026 | 7 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Techniques for selectively delaying responses to premature requests for encoded media content25 Aug 2026US 12,720,134 B2Netflix, Inc.
- Quicker startup18 Aug 2026US 12,713,075 B2DISH Network Technologies India Private Limited
- Multicast assisted delivery4 Aug 2026US 12,701,302 B2British Telecommunications Public Ltd.Co.
- Methods and systems for content delivery14 Jul 2026US 12,684,197 B2Comcast Cable Communications, LLC
- Techniques for traffic surge protection of live origin server9 Jun 2026US 12,652,426 B2Netflix, Inc.
- Techniques for traffic surge protection of live origin server1 Oct 2026US 2026/0303887 A1Netflix, Inc.
- Multisource media delivery systems and methods17 Sep 2026US 2026/0281510 A1Dolby Laboratories Licensing Corporation
- Analysis for storage decisions of media content in a content cache30 Jul 2026US 2026/0222632 A1ViaSat, Inc.
- Techniques for optimized storage utilization in live origin servers12 Mar 2026US 2026/0075264 A1Netflix, Inc.
- Techniques for traffic surge protection of live origin server22 Jan 2026US 2026/0025539 A1Netflix, Inc.
Most cited
By later US patents
- Multi server, interactive, video-on-demand television system utilizing a direct-access-on-demand workgroup539US 6,049,823 A2000
- Method and apparatus for caching for streaming data233US 7,028,096 B1Streaming21, Inc. · 2006
- Intermediate content processing for content delivery networks108US 8,626,876 B1Limelight Networks, Inc. · 2014
- Pre-computing streaming media payload method and apparatus84US 6,742,082 B1Network Appliance, Inc. · 2004
- Video on demand system that presents users with a selection list of proposed videos for which server and network resources are available to immediately serve the selected video71US 6,438,596 B1Kabushiki Kaisha Toshiba · 2002