H04J 2203/006
Fault tolerance and recovery
H04J2203/006 (Fault tolerance and recovery) appears on 731 US grants and 493 published applications in this corpus.
Search patents in H04J- Granted patents
- 731
- Published applications
- 493
- Assignees
- 181
- Inventors
- 1,443
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 6 | 0 |
| 1994 | 6 | 0 |
| 1995 | 13 | 0 |
| 1996 | 21 | 0 |
| 1997 | 17 | 0 |
| 1998 | 38 | 0 |
| 1999 | 26 | 0 |
| 2000 | 28 | 0 |
| 2001 | 28 | 10 |
| 2002 | 29 | 46 |
| 2003 | 40 | 65 |
| 2004 | 25 | 38 |
| 2005 | 36 | 36 |
| 2006 | 46 | 29 |
| 2007 | 31 | 20 |
| 2008 | 40 | 33 |
| 2009 | 40 | 22 |
| 2010 | 27 | 27 |
| 2011 | 30 | 25 |
| 2012 | 32 | 20 |
| 2013 | 21 | 30 |
| 2014 | 25 | 11 |
| 2015 | 35 | 8 |
| 2016 | 17 | 20 |
| 2017 | 16 | 6 |
| 2018 | 6 | 4 |
| 2019 | 6 | 5 |
| 2020 | 8 | 9 |
| 2021 | 8 | 10 |
| 2022 | 6 | 3 |
| 2023 | 6 | 4 |
| 2024 | 2 | 6 |
| 2025 | 4 | 1 |
| 2026 | 3 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- FlexO/ZR subrating and partial survivability21 Apr 2026US 12,609,766 B2Ciena Corporation
- Autonomous topology realization for tilt control in an optical segment10 Mar 2026US 12,574,292 B2Infinera Corporation
- Service protection method and network node3 Feb 2026US 12,542,749 B2Huawei Technologies Co., Ltd.
- Messaging channel in a coherent optical DSP frame14 Oct 2025US 12,445,196 B2Ciena Corporation
- Alarm processing method and apparatus29 Jul 2025US 12,375,173 B2Huawei Technologies Co., Ltd.
- Coordinated Layer-0 and Layer-1 Control for Right-Sizing Optical Interfaces6 Aug 2026US 2026/0230177 A1Ciena Corporation
- Method and system for transmitting service code block stream, and method and system for monitoring quality of service18 Jun 2026US 2026/0172327 A1Zte Corporation
- Messaging Channel in a Coherent Optical DSP Frame15 Jan 2026US 2026/0019149 A1Ciena Corporation
- Clock Information Transmission Method, Apparatus, and System8 Jan 2026US 2026/0012905 A1Huawei Technologies Co., Ltd.
- Hitless readmittance of recovered traffic to a group supporting partial survivability1 Jan 2026US 2026/0005757 A1Ciena Corporation
Most cited
By later US patents
- Synchronous optical transmission system342US 5,185,736 AAlcatel NA Network Systems Corp. · 1993
- Control system and operations system interface for a network element in an access system244US 5,608,720 AHubbell Incorporated · 1997
- Method and apparatus for self-restoring and self-provisioning communication networks154US 4,956,835 AAlberta Telecommunications Research Centre · 1990
- Passive protected self healing ring network125US 5,442,623 ABell Communications Research, Inc. · 1995
- Distributed protocol for improving the survivability of telecommunications trunk networks124US 5,093,824 ABell Communications Research, Inc. · 1992