H04L 45/28
Routing or path finding of packets in data switching networks: using route
Official title: using route fault recovery
H04L45/28 (Routing or path finding of packets in data switching networks: using route) appears on 4,685 US grants and 5,096 published applications in this corpus.
Search patents in H04L- Granted patents
- 4,685
- Published applications
- 5,096
- Assignees
- 947
- Inventors
- 8,299
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 6 | 0 |
| 1992 | 4 | 0 |
| 1993 | 6 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 7 | 0 |
| 1997 | 10 | 0 |
| 1998 | 10 | 0 |
| 1999 | 16 | 0 |
| 2000 | 28 | 0 |
| 2001 | 18 | 14 |
| 2002 | 26 | 74 |
| 2003 | 37 | 132 |
| 2004 | 59 | 97 |
| 2005 | 61 | 139 |
| 2006 | 81 | 161 |
| 2007 | 86 | 174 |
| 2008 | 88 | 215 |
| 2009 | 139 | 199 |
| 2010 | 240 | 195 |
| 2011 | 198 | 200 |
| 2012 | 204 | 231 |
| 2013 | 234 | 265 |
| 2014 | 316 | 321 |
| 2015 | 312 | 281 |
| 2016 | 299 | 284 |
| 2017 | 275 | 212 |
| 2018 | 243 | 207 |
| 2019 | 228 | 234 |
| 2020 | 245 | 236 |
| 2021 | 232 | 240 |
| 2022 | 215 | 245 |
| 2023 | 224 | 228 |
| 2024 | 223 | 229 |
| 2025 | 182 | 175 |
| 2026 | 126 | 108 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Standby router protocol631US 5,473,599 ACisco Systems, Inc. · 1995
- Method and apparatus that provides fault tolerance in a communication network404US 9,615,269 B2AT&T Intellectual Property I, L. P. · 2017
- Agile network protocol for secure communications with assured system availability392US 6,502,135 B1Science Applications International Corporation · 2002
- Reconfiguration system and method for high-speed mesh connected local area network383US 5,138,615 ADigital Equipment Corporation · 1992
- Method for configuring and routing data within a wireless multihop network and a wireless network for implementing the same354US 6,842,430 B1Koninklijke Philips Electronics N. V. · 2005