H04N 21/4753
For user identification
Official title: {for user identification, e.g. by entering a PIN or password (cryptographic authentication protocols H04L9/32; networks authentication protocols H04L63/08)}
H04N21/4753 (For user identification) appears on 1,206 US grants and 1,738 published applications in this corpus.
Search patents in H04N- Granted patents
- 1,206
- Published applications
- 1,738
- Assignees
- 428
- Inventors
- 2,172
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 5 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 10 | 0 |
| 2000 | 15 | 0 |
| 2001 | 14 | 5 |
| 2002 | 19 | 65 |
| 2003 | 18 | 70 |
| 2004 | 16 | 102 |
| 2005 | 8 | 62 |
| 2006 | 22 | 68 |
| 2007 | 21 | 77 |
| 2008 | 24 | 92 |
| 2009 | 31 | 73 |
| 2010 | 42 | 93 |
| 2011 | 46 | 85 |
| 2012 | 62 | 69 |
| 2013 | 73 | 71 |
| 2014 | 83 | 146 |
| 2015 | 98 | 87 |
| 2016 | 89 | 96 |
| 2017 | 67 | 42 |
| 2018 | 62 | 61 |
| 2019 | 62 | 58 |
| 2020 | 44 | 66 |
| 2021 | 45 | 63 |
| 2022 | 62 | 45 |
| 2023 | 54 | 51 |
| 2024 | 43 | 34 |
| 2025 | 36 | 37 |
| 2026 | 18 | 20 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Video conferencing device and image analysis method thereof1 Sep 2026US 12,726,591 B2Samsung Electronics Co., Ltd.
- Systems and methods to provide adaptive play settings1 Sep 2026US 12,726,680 B2Adeia Guides Inc.
- Quicker startup18 Aug 2026US 12,713,075 B2DISH Network Technologies India Private Limited
- Systems and methods for controlling access to media assets using two-factor authentication30 Jun 2026US 12,671,864 B2Adeia Guides Inc.
- Realtime wireless synchronization of live event audio stream with a video recording16 Jun 2026US 12,660,290 B2Bygge Technologies Inc.
- Systems and methods for controlling access to media assets using two-factor authentication8 Oct 2026US 2026/0313193 A1Adeia Guides Inc.
- Realtime wireless synchronization of live event audio stream with a video recording8 Oct 2026US 2026/0314022 A1Bygge Technologies Inc.
- Systems and methods for validating live programming content based on third-party data24 Sep 2026US 2026/0292310 A1DK Crown Holdings Inc.
- Systems and methods for a customized media access user experience with privacy settings17 Sep 2026US 2026/0281489 A1Universal Electronics Inc.
- Systems and methods for generating notification interfaces synchronized with broadcast events and local interactions17 Sep 2026US 2026/0281508 A1DK Crown Holdings Inc.
Most cited
By later US patents
- Inter-active program guide with default selection control1,314US 5,850,218 ATime Warner Entertainment Co., L. P. · 1998
- Electronic television program guide schedule system and method with data feed access1,287US 5,589,892 A1996
- Systems and methods for secure transaction management and electronic rights protection1,270US 5,982,891 AIntertrust Technologies Corporation · 1999
- Systems and methods for linking television viewers with advertisers and broadcasters1,174US 6,002,394 AStarsight Telecast, Inc. · 1999
- Systems and methods for secure transaction management and electronic rights protection1,156US 5,910,987 AIntertrust Technologies Corporation · 1999