H04N 21/63775
For uploading keys
Official title: {for uploading keys, e.g. for a client to communicate its public key to the server (key management H04L9/08; network support of key management H04L63/06)}
H04N21/63775 (For uploading keys) appears on 124 US grants and 177 published applications in this corpus.
Search patents in H04N- Granted patents
- 124
- Published applications
- 177
- Assignees
- 79
- Inventors
- 325
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 2 |
| 2002 | 0 | 12 |
| 2003 | 1 | 5 |
| 2004 | 2 | 7 |
| 2005 | 3 | 10 |
| 2006 | 5 | 10 |
| 2007 | 4 | 8 |
| 2008 | 3 | 5 |
| 2009 | 0 | 8 |
| 2010 | 2 | 12 |
| 2011 | 4 | 6 |
| 2012 | 10 | 14 |
| 2013 | 4 | 8 |
| 2014 | 12 | 6 |
| 2015 | 16 | 10 |
| 2016 | 8 | 9 |
| 2017 | 7 | 2 |
| 2018 | 7 | 8 |
| 2019 | 5 | 6 |
| 2020 | 4 | 4 |
| 2021 | 5 | 5 |
| 2022 | 6 | 5 |
| 2023 | 4 | 6 |
| 2024 | 5 | 4 |
| 2025 | 1 | 2 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method for converting adaptive stream to downloadable media21 Apr 2026US 12,610,092 B2Resi Media LLC
- System and method for transcoding media stream21 Apr 2026US 12,610,093 B2Resi Media LLC
- Content transmission protection method and related device thereof20 Jan 2026US 12,531,745 B2Huawei Technologies Co., Ltd.
- Secure remote-less configuration of a media playback device4 Nov 2025US 12,464,178 B2Roku, Inc.
- System and method for transcoding media stream17 Sep 2024US 12,096,045 B2Resi Media LLC
- System and method for transcoding media stream6 Aug 2026US 2026/0230658 A1Resi Media LLC
- System and method for converting adaptive stream to downloadable media30 Jul 2026US 2026/0222631 A1Resi Media LLC
- Secure remote-less configuration of a media playback device5 Feb 2026US 2026/0039890 A1Roku, Inc.
- Whiteboard content sharing system17 Jul 2025US 2025/0231728 A1
- Secure and privacy preserving server-to-server content distribution3 Jul 2025US 2025/0217454 A1Google Inc.
Most cited
By later US patents
- System for and method of authenticating a client200US 5,784,464 AFujitsu Limited · 1998
- Information delivery system, information delivery method, information delivery server, content delivery server and client terminal101US 7,269,601 B2Ntt Docomo, Inc. · 2007
- Electronic watermarking method, digital information distribution system using such method, and storage medium storing program of such method70US 6,560,339 B1Canon Kabushiki Kaisha · 2003
- Contents distribution system66US 7,353,543 B2Matsushita Electric Industrial Co., Ltd. · 2008
- System for denying access to content generated by a compromised off line encryption device and for conveying cryptographic keys from multiple conditional access systems65US 7,257,227 B2General Instrument Corporation · 2007