H04J 14/029
Dedicated protection at the optical multiplex section
Official title: {Dedicated protection at the optical multiplex section (1+1)}
H04J14/029 (Dedicated protection at the optical multiplex section) appears on 113 US grants and 106 published applications in this corpus.
Search patents in H04J- Granted patents
- 113
- Published applications
- 106
- Assignees
- 63
- Inventors
- 241
- Latest grant
- 25 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 1 |
| 2002 | 0 | 15 |
| 2003 | 4 | 11 |
| 2004 | 4 | 4 |
| 2005 | 8 | 8 |
| 2006 | 7 | 5 |
| 2007 | 9 | 6 |
| 2008 | 7 | 3 |
| 2009 | 7 | 9 |
| 2010 | 5 | 5 |
| 2011 | 6 | 6 |
| 2012 | 5 | 1 |
| 2013 | 6 | 0 |
| 2014 | 3 | 5 |
| 2015 | 3 | 2 |
| 2016 | 3 | 2 |
| 2017 | 2 | 2 |
| 2018 | 3 | 3 |
| 2019 | 5 | 4 |
| 2020 | 4 | 3 |
| 2021 | 3 | 9 |
| 2022 | 6 | 1 |
| 2023 | 2 | 0 |
| 2024 | 3 | 0 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Data secrecy method for submarine cable system with failure and submarine cable system25 Nov 2025US 12,483,346 B2HMN Technologies Co., Limited
- Optical subcarrier dual-path protection and restoration for optical communications networks13 Feb 2024US 11,901,950 B2Infinera Corporation
- Logical cut of an optical fiber due to fiber events30 Jan 2024US 11,888,514 B2Amazon Technologies, Inc.
- Optical subcarrier dual-path protection and restoration for optical communications networks9 Jan 2024US 11,870,496 B2Infinera Corporation
- Optical subcarrier dual-path protection and restoration for optical communications networks31 Jan 2023US 11,569,915 B2Infinera Corporation
- Data Secrecy Method for Submarine Cable System with Failure and Submarine Cable System16 Jan 2025US 2025/0023654 A1HMN Technologies Co., Limited
- Logical cut of an optical fiber due to fiber events5 May 2022US 2022/0140897 A1Amazon Technologies, Inc.
- Optical Protection Switching for Single Fibre Bidirectional WDM Optical Ring23 Dec 2021US 2021/0399824 A1Telefonaktiebolaget LM Ericsson (publ)
- Optical subcarrier dual-path protection and restoration for optical communications networks15 Apr 2021US 2021/0111788 A1Infinera Corporation
- Optical subcarrier dual-path protection and restoration for optical communications networks15 Apr 2021US 2021/0111804 A1Influera Corporation
Most cited
By later US patents
- Multi-tiered control architecture for adaptive optical networks, and methods and apparatus therefor82US 7,013,084 B2Lambda OpticalSystems Corporation · 2006
- Ring network for transmitting wavelength-multiplexed informations60US 5,760,934 AFrance Telecom · 1998
- Optical network, optical division and insertion node and recovery system from network failure59US 6,137,603 ANEC Corporation · 2000
- Network failure restoration method with different recovery performances for different signal groups50US 6,023,452 ANEC Corporation · 2000
- Architecture for dynamic connectivity in an edge photonic network architecture42US 7,245,829 B1Nortel Networks Limited · 2007