H04L 61/251
Between different ip versions
Official title: between different IP versions
H04L61/251 (Between different ip versions) appears on 426 US grants and 474 published applications in this corpus.
Search patents in H04L- Granted patents
- 426
- Published applications
- 474
- Assignees
- 177
- Inventors
- 811
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2000 | 2 | 0 |
| 2001 | 0 | 2 |
| 2002 | 0 | 20 |
| 2003 | 1 | 16 |
| 2004 | 4 | 23 |
| 2005 | 8 | 16 |
| 2006 | 11 | 23 |
| 2007 | 20 | 16 |
| 2008 | 21 | 15 |
| 2009 | 17 | 14 |
| 2010 | 12 | 16 |
| 2011 | 17 | 17 |
| 2012 | 11 | 17 |
| 2013 | 25 | 32 |
| 2014 | 14 | 21 |
| 2015 | 28 | 20 |
| 2016 | 24 | 18 |
| 2017 | 30 | 26 |
| 2018 | 20 | 13 |
| 2019 | 15 | 25 |
| 2020 | 27 | 13 |
| 2021 | 18 | 19 |
| 2022 | 27 | 27 |
| 2023 | 23 | 27 |
| 2024 | 23 | 17 |
| 2025 | 23 | 12 |
| 2026 | 5 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Validating an IPV6 address from an IPV4 network14 Apr 2026US 12,603,876 B2DigiCert, Inc.
- Providing extendible network capabilities for managed computer networks7 Apr 2026US 12,598,156 B2Amazon Technologies, Inc.
- Systems and methods for continuous fingerprinting to detect session hijacking inside zero trust private networks24 Feb 2026US 12,563,011 B2Zscaler, Inc.
- Method and device for obtaining an IP address20 Jan 2026US 12,531,829 B2Orange
- Method and electronic device for device IP status checking and connection orchestration20 Jan 2026US 12,531,830 B2Samsung Electronics Co., Ltd.
- Communication method, communication apparatus, and communication system27 Aug 2026US 2026/0255156 A1Huawei Technologies Co., Ltd.
- Network communication method20 Aug 2026US 2026/0246758 A1Getac Technology Corporation
- Encapsulation device, communication system, encapsulation method, and encapsulation program13 Aug 2026US 2026/0238592 A1NTT, Inc.
- Reduced downtime migration of virtualized software services14 May 2026US 2026/0135804 A1Loophole Labs, Inc.
- Multi-Homed Host Tracking30 Apr 2026US 2026/0121955 A1Cisco Technology, Inc.
Most cited
By later US patents
- Translator for IP networks, network system using the translator, and IP network coupling method therefor205US 6,038,233 AHitachi, Ltd. · 2000
- Mobile ad hoc extensions for the internet171US 6,845,091 B2SRI International · 2005
- Communicating method between IPv4 terminal and IPv6 terminal and IPv4-IPv6 converting apparatus170US 6,118,784 AHitachi, Ltd. · 2000
- Mechanisms for avoiding problems associated with network address protocol translation136US 7,006,526 B1Cisco Technology, Inc. · 2006
- Systems, methods, and devices for smart mapping and VPN policy enforcement122US 10,637,889 B2Cisco Technology, Inc. · 2020