H04L 45/52
Multiprotocol routers
H04L45/52 (Multiprotocol routers) appears on 467 US grants and 525 published applications in this corpus.
Search patents in H04L- Granted patents
- 467
- Published applications
- 525
- Assignees
- 205
- Inventors
- 1,122
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 4 |
| 2002 | 2 | 15 |
| 2003 | 5 | 13 |
| 2004 | 6 | 9 |
| 2005 | 8 | 13 |
| 2006 | 15 | 17 |
| 2007 | 8 | 10 |
| 2008 | 12 | 19 |
| 2009 | 11 | 14 |
| 2010 | 21 | 14 |
| 2011 | 25 | 13 |
| 2012 | 12 | 11 |
| 2013 | 12 | 15 |
| 2014 | 14 | 23 |
| 2015 | 19 | 17 |
| 2016 | 15 | 22 |
| 2017 | 23 | 23 |
| 2018 | 33 | 86 |
| 2019 | 40 | 39 |
| 2020 | 45 | 32 |
| 2021 | 33 | 28 |
| 2022 | 29 | 31 |
| 2023 | 26 | 20 |
| 2024 | 19 | 17 |
| 2025 | 14 | 8 |
| 2026 | 8 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Protocol obfuscation in moving target defense22 Sep 2026US 12,744,762 B2Comcast Cable Communications, LLC
- Power tracking using a soldier network middleware system25 Aug 2026US 12,717,297 B2Galvion Ltd.
- Automatic pairing of devices to a communication gateway18 Aug 2026US 12,713,480 B2Systech Corporation
- Service orchestration in a communication infrastructure with different network domains17 Mar 2026US 12,580,829 B2Hewlett Packard Enterprise Development LP
- Systems and methods for network traffic trunking17 Mar 2026US 12,580,869 B2F5, Inc.
- Small form-factor pluggable device8 Oct 2026US 2026/0312903 A1Schweitzer Engineering Laboratories, Inc.
- Generic interoperability among multicast protocols20 Aug 2026US 2026/0246729 A1Hewlett Packard Enterprise Development LP
- Onboard relay apparatus, relay method, and computer program13 Aug 2026US 2026/0238509 A1Autonetworks Technologies, Ltd.
- Loop Detection and Prevention in Multi-Protocol Routing Environment6 Aug 2026US 2026/0230421 A1Ciena Corporation
- Telemetry standardization for multi-configuration protocols28 May 2026US 2026/0149635 A1Mellanox Technologies, Ltd.
Most cited
By later US patents
- Multiple protocol routing374US 5,251,205 ADigital Equipment Corporation · 1993
- Reliable transport protocol for internetwork routing361US 5,519,704 ACisco Systems, Inc. · 1996
- Multiple protocol routing321US 5,430,727 ADigital Equipment Corporation · 1995
- Distributed autonomous object architectures for network layer routing303US 5,509,123 ACabletron Systems, Inc. · 1996
- Systems and methods for adaptive routing in mobile ad-hoc networks and disruption tolerant networks223US 8,149,716 B2Raytheon BBN Technologies Corp. · 2012