H04N 21/44224
Monitoring of user activity on external systems
Official title: {Monitoring of user activity on external systems, e.g. Internet browsing}
H04N21/44224 (Monitoring of user activity on external systems) appears on 2,806 US grants and 3,581 published applications in this corpus.
Search patents in H04N- Granted patents
- 2,806
- Published applications
- 3,581
- Assignees
- 751
- Inventors
- 4,501
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1997 | 1 | 0 |
| 1998 | 5 | 0 |
| 1999 | 12 | 0 |
| 2000 | 7 | 0 |
| 2001 | 12 | 15 |
| 2002 | 11 | 91 |
| 2003 | 6 | 82 |
| 2004 | 16 | 71 |
| 2005 | 10 | 74 |
| 2006 | 30 | 107 |
| 2007 | 24 | 103 |
| 2008 | 28 | 101 |
| 2009 | 34 | 95 |
| 2010 | 53 | 125 |
| 2011 | 66 | 112 |
| 2012 | 81 | 131 |
| 2013 | 122 | 177 |
| 2014 | 172 | 241 |
| 2015 | 186 | 235 |
| 2016 | 194 | 234 |
| 2017 | 259 | 249 |
| 2018 | 209 | 211 |
| 2019 | 227 | 229 |
| 2020 | 226 | 213 |
| 2021 | 197 | 160 |
| 2022 | 163 | 134 |
| 2023 | 157 | 148 |
| 2024 | 135 | 118 |
| 2025 | 103 | 84 |
| 2026 | 60 | 41 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Publishing disparate live media output streams using live input streams6 Oct 2026US 12,756,898 B2Turner Broadcasting System, Inc.
- Systems and methods for selectively storing specific versions of media assets29 Sep 2026US 12,750,551 B2Adeia Guides Inc.
- Methods and apparatus to determine sources of media presentations22 Sep 2026US 12,743,462 B2The Nielsen Company (US), LLC
- Systems and methods for causing a user to view secondary content that relates to a media asset from which a user has switched away22 Sep 2026US 12,744,948 B2Adeia Guides Inc.
- Modified content delivery22 Sep 2026US 12,744,951 B2Comcast Cable Communications, LLC
- Methods and apparatus to determine a conditional probability based on audience member probability distributions for media audience measurement8 Oct 2026US 2026/0311010 A1The Nielsen Company (US), LLC
- Dynamic scheduling and channel creation based on external data24 Sep 2026US 2026/0292284 A1Turner Broadcasting System, Inc.
- Systems and methods for notifying a user when activity exceeds an authorization level17 Sep 2026US 2026/0281500 A1Adeia Guides Inc.
- Optimization of content representation in a user interface27 Aug 2026US 2026/0255017 A1Comcast Cable Communications, LLC
- Systems and/or methods for distributing advertisements from a central advertisement network to a peripheral device via a local advertisement server20 Aug 2026US 2026/0245116 A1TouchTunes Music Corporation
Most cited
By later US patents
- Intelligent electronic appliance system and method2,708US 6,850,252 B12005
- Systems and methods for displaying and recording control interface with television programs, video, advertising information and program scheduling information2,572US 6,177,931 B1Index Systems, Inc. · 2001
- Information and advertising distribution system and method2,044US 5,740,549 APointCast, Inc. · 1998
- System for customized electronic identification of desirable objects1,946US 6,029,195 A2000
- Techniques for intelligent video ad insertion1,777US 6,698,020 B1WebTV Networks, Inc. · 2004