H04L 51/02
User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols
Official title: using automatic reactions or user delegation, e.g. automatic replies or chatbot-generated messages
H04L51/02 (User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols) appears on 4,052 US grants and 5,441 published applications in this corpus.
Search patents in H04L- Granted patents
- 4,052
- Published applications
- 5,441
- Assignees
- 1,158
- Inventors
- 9,863
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 3 |
| 2002 | 2 | 10 |
| 2003 | 1 | 5 |
| 2004 | 2 | 8 |
| 2005 | 3 | 11 |
| 2006 | 6 | 16 |
| 2007 | 4 | 17 |
| 2008 | 4 | 28 |
| 2009 | 15 | 23 |
| 2010 | 16 | 18 |
| 2011 | 31 | 38 |
| 2012 | 34 | 64 |
| 2013 | 46 | 66 |
| 2014 | 53 | 173 |
| 2015 | 92 | 152 |
| 2016 | 116 | 208 |
| 2017 | 128 | 224 |
| 2018 | 156 | 362 |
| 2019 | 252 | 460 |
| 2020 | 438 | 495 |
| 2021 | 482 | 492 |
| 2022 | 491 | 543 |
| 2023 | 486 | 529 |
| 2024 | 484 | 466 |
| 2025 | 444 | 551 |
| 2026 | 258 | 479 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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