H04B 10/07957
Monitoring or measuring wavelength
Official title: {Monitoring or measuring wavelength}
H04B10/07957 (Monitoring or measuring wavelength) appears on 244 US grants and 259 published applications in this corpus.
Search patents in H04B- Granted patents
- 244
- Published applications
- 259
- Assignees
- 115
- Inventors
- 576
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 10 |
| 2003 | 1 | 8 |
| 2004 | 3 | 4 |
| 2005 | 3 | 0 |
| 2006 | 4 | 2 |
| 2007 | 2 | 3 |
| 2008 | 2 | 3 |
| 2009 | 1 | 2 |
| 2010 | 3 | 1 |
| 2011 | 2 | 2 |
| 2012 | 0 | 6 |
| 2013 | 3 | 9 |
| 2014 | 6 | 7 |
| 2015 | 10 | 9 |
| 2016 | 15 | 25 |
| 2017 | 35 | 36 |
| 2018 | 22 | 18 |
| 2019 | 20 | 25 |
| 2020 | 25 | 13 |
| 2021 | 14 | 16 |
| 2022 | 16 | 17 |
| 2023 | 13 | 15 |
| 2024 | 13 | 12 |
| 2025 | 13 | 9 |
| 2026 | 7 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Coherent optics channel discovery and programmability for optical networks14 Jul 2026US 12,683,691 B2Cisco Technology, Inc.
- Optical transmission system, signal quality measurement apparatus and signal quality measurement method7 Jul 2026US 12,676,671 B2NTT, Inc.
- Optical network unit, optical line terminal and method, device and medium for communication16 Jun 2026US 12,659,633 B2Nokia Solutions and Networks Oy
- Locating disturbances in optical fibres2 Jun 2026US 12,647,181 B2Tampnet AS
- Method and a system for tuning tunable optical transceivers12 May 2026US 12,627,378 B2Centre for Development of Telematics (C-DOT)
- Locating disturbances in optical fibres17 Sep 2026US 2026/0280699 A1Tampnet AS
- Optical transmission device and optical transmission method3 Sep 2026US 2026/0261340 A1NTT, Inc.
- Power regulation method and optical communication system3 Sep 2026US 2026/0261354 A1Zte Corporation
- Qkd device, qkd system, qkd control method, and computer program product9 Jul 2026US 2026/0197093 A1Kabushiki Kaisha Toshiba
- Wavelength-Tuned Optical Source Used as Optical Source for Ultra-Wideband Wavelength Reference18 Jun 2026US 2026/0172135 A1II-Vi Delaware, Inc.
Most cited
By later US patents
- Optimized optical transmission system for high capacity transmission129US 5,717,510 AFujitsu Limited · 1998
- Optical communication system which determines the spectrum of a wavelength division multiplexed signal and performs various processes in accordance with the determined spectrum109US 5,894,362 AFujitsu Limited · 1999
- Signal transmission system and method for supervising the same96US 6,229,631 B1Oki Electric Industry Co., Ltd. · 2001
- Methods and systems for using modulation frequencies for optical channel monitoring with periodic optical filtering57US 9,485,554 B1Fujitsu Limited · 2016
- Optical transmission system, optical multiplexing transmission system, and related peripheral techniques47US 5,991,477 AFujitsu Limited · 1999