H04L 45/42
Centralised routing
H04L45/42 (Centralised routing) appears on 2,108 US grants and 2,364 published applications in this corpus.
Search patents in H04L- Granted patents
- 2,108
- Published applications
- 2,364
- Assignees
- 511
- Inventors
- 4,274
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 5 | 0 |
| 1996 | 10 | 0 |
| 1997 | 5 | 0 |
| 1998 | 8 | 0 |
| 1999 | 5 | 0 |
| 2000 | 4 | 0 |
| 2001 | 5 | 2 |
| 2002 | 2 | 11 |
| 2003 | 3 | 23 |
| 2004 | 12 | 20 |
| 2005 | 7 | 29 |
| 2006 | 12 | 27 |
| 2007 | 8 | 20 |
| 2008 | 23 | 37 |
| 2009 | 20 | 33 |
| 2010 | 37 | 39 |
| 2011 | 27 | 54 |
| 2012 | 40 | 66 |
| 2013 | 46 | 105 |
| 2014 | 84 | 81 |
| 2015 | 81 | 140 |
| 2016 | 109 | 148 |
| 2017 | 110 | 118 |
| 2018 | 124 | 128 |
| 2019 | 145 | 116 |
| 2020 | 136 | 147 |
| 2021 | 142 | 202 |
| 2022 | 190 | 240 |
| 2023 | 207 | 252 |
| 2024 | 245 | 141 |
| 2025 | 159 | 125 |
| 2026 | 87 | 60 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method for facilitating dynamic command management in a network interface controller (NIC)6 Oct 2026US 12,754,857 B2Hewlett Packard Enterprise Development LP
- FPGA neighbor output mux direct connections to minimize routing hops29 Sep 2026US 12,750,302 B2Efinix, Inc.
- Intent-based orchestration of routing controls across a network overlay29 Sep 2026US 12,750,310 B2Cisco Technology, Inc.
- Enhancing interior gateway protocol functionalities for local and remote peering with virtual private network based fabric29 Sep 2026US 12,750,311 B2Cisco Technology, Inc.
- Traffic filtering based on destination address and incoming interface of a network device15 Sep 2026US 12,739,196 B1Hewlett Packard Enterprise Development LP
- Weighted traffic forwarding24 Sep 2026US 2026/0291862 A1Mellanox Technologies, Ltd.
- Name-based routing through networks24 Sep 2026US 2026/0291864 A1Level 3 Communications, LLC
- Method and Apparatus for Maintaining a Resilient VPN Connection17 Sep 2026US 2026/0281082 A1Netflow, UAB
- Providing hierarchical traffic engineering for a network10 Sep 2026US 2026/0270191 A1Juniper Networks, Inc.
- Supervisor Switchover with Reduced Data Plane Traffic Loss10 Sep 2026US 2026/0270192 A1Arista Networks, Inc.
Most cited
By later US patents
- Automatic update of topology in a hybrid network354US 4,644,532 AInternational Business Machines Corporation · 1987
- Video collection and distribution system with interested item notification and download on demand329US 5,644,714 AElonex PLC · 1997
- Authentication for software defined networks328US 9,038,151 B1Wiretap Ventures, LLC · 2015
- Distributed autonomous object architectures for network layer routing303US 5,509,123 ACabletron Systems, Inc. · 1996
- Method, system, and computer program product for providing voice over the internet communication303US 6,760,324 B1Array Telecom Corporation · 2004