H04L 45/02
Topology update or discovery
H04L45/02 (Topology update or discovery) appears on 10,507 US grants and 10,867 published applications in this corpus.
Search patents in H04L- Granted patents
- 10,507
- Published applications
- 10,867
- Assignees
- 1,750
- Inventors
- 16,088
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 4 | 0 |
| 1989 | 6 | 0 |
| 1990 | 3 | 0 |
| 1991 | 12 | 0 |
| 1992 | 19 | 0 |
| 1993 | 16 | 0 |
| 1994 | 24 | 0 |
| 1995 | 28 | 0 |
| 1996 | 41 | 0 |
| 1997 | 33 | 0 |
| 1998 | 58 | 0 |
| 1999 | 32 | 0 |
| 2000 | 66 | 0 |
| 2001 | 76 | 39 |
| 2002 | 76 | 130 |
| 2003 | 107 | 264 |
| 2004 | 141 | 225 |
| 2005 | 132 | 264 |
| 2006 | 173 | 299 |
| 2007 | 129 | 305 |
| 2008 | 227 | 339 |
| 2009 | 301 | 352 |
| 2010 | 429 | 337 |
| 2011 | 410 | 333 |
| 2012 | 354 | 356 |
| 2013 | 360 | 416 |
| 2014 | 465 | 488 |
| 2015 | 533 | 542 |
| 2016 | 545 | 641 |
| 2017 | 551 | 586 |
| 2018 | 542 | 563 |
| 2019 | 641 | 537 |
| 2020 | 677 | 611 |
| 2021 | 637 | 673 |
| 2022 | 644 | 693 |
| 2023 | 609 | 596 |
| 2024 | 586 | 534 |
| 2025 | 516 | 423 |
| 2026 | 301 | 321 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H04L 45/04Interdomain routing3,570
- H04L 45/021Ensuring consistency of routing table updates706
- H04L 45/033By updating distance vector protocols691
- H04L 45/03By updating link state protocols597
- H04L 45/10Routing in connection-oriented networks479
- H04L 45/08Learning-based routing460
- H04L 45/026Details of "hello" or keep-alive messages404
- H04L 45/036Updating the topology between route computation elements400
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
- Bit index explicit replication (BIER) with anycast6 Oct 2026US 12,756,651 B2Hewlett Packard Enterprise Development LP
- Refresh of the binding tables between data-link-layer and network-layer addresses on mobility in a data center environment6 Oct 2026US 12,756,652 B2Cisco Technology, Inc.
- Fabric routing systems and methods thereof6 Oct 2026US 12,756,653 B2Cisco Technology, Inc.
- Methods and apparatus for configuring a route selection policy6 Oct 2026US 12,756,654 B2Samsung Electronics Co., Ltd.
- System of Backbone Routers Including Edge Routers That Provide Application Based Routing Guidance to a Computing Device8 Oct 2026US 2026/0312902 A1Teridion Technologies LTD
- Security table entry generation method and apparatus, network device, and storage medium8 Oct 2026US 2026/0312956 A1New H3C Technologies Co., Ltd.
- Switch port configuration based on silent host type1 Oct 2026US 2026/0303387 A1Hewlett Packard Enterprise Development LP
- Route Forwarding Processing Method and Apparatus, Storage Medium, and Electronic Device1 Oct 2026US 2026/0303395 A1Zte Corporation
- Distributed message extensions for rules engines1 Oct 2026US 2026/0303508 A1Red Hat, Inc.
Most cited
By later US patents
- Method and apparatus for making a cluster of computers appear as a single host on a network741US 5,371,852 AInternational Business Machines Corporation · 1994
- Distributed connection-oriented services for switched communications networks673US 5,825,772 ACabletron Systems, Inc. · 1998
- System, method, and apparatus for electronic patient care571US 10,911,515 B2DEKA Products Limited Partnership · 2021
- Using virtual networking devices to manage external connections520US 7,937,438 B1Amazon Technologies, Inc. · 2011
- Routing and mobility management protocols for ad-hoc networks509US 6,304,556 B1Cornell Research Foundation, Inc. · 2001