H04N 21/2347
Involving video stream encryption
Official title: involving video stream encryption
H04N21/2347 (Involving video stream encryption) appears on 1,693 US grants and 2,109 published applications in this corpus.
Search patents in H04N- Granted patents
- 1,693
- Published applications
- 2,109
- Assignees
- 606
- Inventors
- 2,906
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 5 | 0 |
| 1996 | 5 | 0 |
| 1997 | 3 | 0 |
| 1998 | 8 | 0 |
| 1999 | 17 | 0 |
| 2000 | 11 | 0 |
| 2001 | 15 | 23 |
| 2002 | 20 | 78 |
| 2003 | 22 | 99 |
| 2004 | 24 | 105 |
| 2005 | 34 | 128 |
| 2006 | 58 | 134 |
| 2007 | 50 | 134 |
| 2008 | 64 | 101 |
| 2009 | 62 | 100 |
| 2010 | 80 | 86 |
| 2011 | 75 | 83 |
| 2012 | 85 | 74 |
| 2013 | 102 | 70 |
| 2014 | 110 | 108 |
| 2015 | 114 | 81 |
| 2016 | 88 | 106 |
| 2017 | 80 | 85 |
| 2018 | 73 | 67 |
| 2019 | 82 | 83 |
| 2020 | 63 | 74 |
| 2021 | 87 | 67 |
| 2022 | 62 | 57 |
| 2023 | 51 | 59 |
| 2024 | 67 | 45 |
| 2025 | 39 | 38 |
| 2026 | 32 | 24 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Managing encryption keys for content29 Sep 2026US 12,750,208 B2Comcast Cable Communications, LLC
- Protecting media content integrity across untrusted networks29 Sep 2026US 12,750,538 B2Amazon Technologies, Inc.
- Media data decryption method and device, computer device, and storage medium8 Sep 2026US 12,730,906 B2Unilumin Group Co., Ltd
- Synchronized interleaved watermarking25 Aug 2026US 12,720,133 B2Synamedia Limited
- System to establish a network of nodes and participants for dynamic management of media content rights25 Aug 2026US 12,720,161 B2Turner Broadcasting Systems, Inc.
- De-Sequencing Encoded Data Slices via a Storage Network24 Sep 2026US 2026/0288583 A1Everpure, Inc.
- Systems and methods for multi-layered video encoding24 Sep 2026US 2026/0292221 A1Tyco Fire & Security GmbH
- Video transmission method, video transmission apparatus, electronic device and readable medium24 Sep 2026US 2026/0292277 A1Boe Technology Group Co., Ltd.
- User-defined content streaming24 Sep 2026US 2026/0292280 A1Comcast Cable Communications, LLC
- Video provision system, video provision method, and non-transitory computer readable storage medium17 Sep 2026US 2026/0281474 A1amnimo Inc.
Most cited
By later US patents
- Systems and methods for secure transaction management and electronic rights protection3,563US 5,892,900 AIntertrust Technologies Corporation · 1999
- Systems and methods for secure transaction management and electronic rights protection1,270US 5,982,891 AIntertrust Technologies Corporation · 1999
- Systems and methods for secure transaction management and electronic rights protection1,156US 5,910,987 AIntertrust Technologies Corporation · 1999
- Steganographic techniques for securely delivering electronic digital rights management control information over insecure communication channels1,021US 5,943,422 AIntertrust Technologies Corporation · 1999
- Trusted and secure techniques, systems and methods for item delivery and execution944US 6,185,683 B2Intertrust Technologies Corporation · 2001