H04L 12/1831
Tracking arrangements for later retrieval
Official title: {Tracking arrangements for later retrieval, e.g. recording contents, participants activities or behavior, network status}
H04L12/1831 (Tracking arrangements for later retrieval) appears on 1,506 US grants and 1,855 published applications in this corpus.
Search patents in H04L- Granted patents
- 1,506
- Published applications
- 1,855
- Assignees
- 487
- Inventors
- 3,243
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 6 | 0 |
| 1999 | 12 | 0 |
| 2000 | 7 | 0 |
| 2001 | 4 | 1 |
| 2002 | 12 | 19 |
| 2003 | 4 | 16 |
| 2004 | 7 | 18 |
| 2005 | 5 | 18 |
| 2006 | 15 | 18 |
| 2007 | 15 | 36 |
| 2008 | 15 | 44 |
| 2009 | 19 | 56 |
| 2010 | 26 | 26 |
| 2011 | 17 | 23 |
| 2012 | 38 | 35 |
| 2013 | 42 | 41 |
| 2014 | 54 | 74 |
| 2015 | 51 | 54 |
| 2016 | 66 | 63 |
| 2017 | 49 | 61 |
| 2018 | 53 | 65 |
| 2019 | 81 | 125 |
| 2020 | 100 | 108 |
| 2021 | 105 | 105 |
| 2022 | 131 | 193 |
| 2023 | 160 | 231 |
| 2024 | 180 | 189 |
| 2025 | 145 | 132 |
| 2026 | 84 | 104 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Simulating user interactions over shared content8 Oct 2026US 2026/0313031 A1Sightful Computers Ltd
- Machine-learning based method for utilizing machine learning models to monitor and control learners in breakout rooms1 Oct 2026US 2026/0303392 A1Constructor Education and Research Genossenschaft
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Most cited
By later US patents
- Internet messaging system and method for use in computer networks1,246US 6,484,196 B1Advanced Web Solutions · 2002
- Method and apparatus for providing group interaction via communications networks1,204US 7,124,164 B12006
- System and method providing a computer user interface enabling access to distributed workgroup members981US 5,793,365 ASun Microsystems, Inc. · 1998
- Multimedia collaboration system with separate data network and A/V network controlled by information transmitting on the data network741US 5,617,539 AVicor Corporation · 1997
- Computer conferencing system with real-time multipoint, multi-speed, multi-stream scalability711US 6,343,313 B12002