H04L 45/20
Hop count for routing purposes
Official title: {Hop count for routing purposes, e.g. TTL}
H04L45/20 (Hop count for routing purposes) appears on 1,035 US grants and 1,096 published applications in this corpus.
Search patents in H04L- Granted patents
- 1,035
- Published applications
- 1,096
- Assignees
- 341
- Inventors
- 2,132
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 3 |
| 2002 | 7 | 14 |
| 2003 | 8 | 15 |
| 2004 | 8 | 28 |
| 2005 | 7 | 22 |
| 2006 | 17 | 22 |
| 2007 | 9 | 31 |
| 2008 | 24 | 30 |
| 2009 | 26 | 24 |
| 2010 | 28 | 25 |
| 2011 | 36 | 15 |
| 2012 | 19 | 18 |
| 2013 | 24 | 27 |
| 2014 | 30 | 34 |
| 2015 | 24 | 50 |
| 2016 | 50 | 57 |
| 2017 | 44 | 78 |
| 2018 | 60 | 57 |
| 2019 | 74 | 61 |
| 2020 | 71 | 62 |
| 2021 | 80 | 94 |
| 2022 | 84 | 128 |
| 2023 | 96 | 81 |
| 2024 | 90 | 60 |
| 2025 | 66 | 32 |
| 2026 | 31 | 28 |
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
- Service function chaining parallelism and diversions29 Sep 2026US 12,750,313 B2Huawei Technologies Co., Ltd.
- System and method of discovering and validating different network action hardware capabilities22 Sep 2026US 12,744,721 B2Cisco Technology, Inc.
- Coherent internet network bonding system22 Sep 2026US 12,744,725 B2Petroliam Nasional Berhad (Petronas)
- Systems and methods for service interworking22 Sep 2026US 12,744,726 B2Hewlett Packard Enterprise Development LP
- Network node and terminal1 Oct 2026US 2026/0303514 A1Ntt Docomo, Inc.
- Transport mechanism selection for multi-access point coordination group (cg)1 Oct 2026US 2026/0304286 A1Cisco Technology, Inc.
- Determining traceroutes using tcp packets10 Sep 2026US 2026/0270181 A1Charter Communications Operating, LLC
- Wireless communication system, wireless communication method, wireless communication device and wireless communication program13 Aug 2026US 2026/0239164 A1Ntt Docomo, Inc.
- Global bandwidth-aware adaptive routing30 Jul 2026US 2026/0222332 A1Mellanox Technologies, Ltd.
Most cited
By later US patents
- Highly dynamic destination-sequenced destination vector routing for mobile computers587US 5,412,654 AInternational Business Machines Corporation · 1995
- Wide area network using internet with quality of service316US 7,111,163 B1AlterWAN, Inc. · 2006
- Self-organizing network304US 6,028,857 AMassachusetts Institute of Technology · 2000
- Traffic policing in a mobile ad hoc network285US 7,068,600 B2Harris Corporation · 2006
- Agile network protocol for secure communications with assured system availability276US 7,133,930 B2Science Applications International Corporation · 2006