H04J 14/026
Using wdm channels of different transmission rates
Official title: {using WDM channels of different transmission rates}
H04J14/026 (Using wdm channels of different transmission rates) appears on 107 US grants and 132 published applications in this corpus.
Search patents in H04J- Granted patents
- 107
- Published applications
- 132
- Assignees
- 45
- Inventors
- 231
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 5 |
| 2010 | 0 | 6 |
| 2011 | 0 | 4 |
| 2012 | 4 | 27 |
| 2013 | 7 | 10 |
| 2014 | 17 | 14 |
| 2015 | 15 | 8 |
| 2016 | 11 | 14 |
| 2017 | 7 | 5 |
| 2018 | 11 | 7 |
| 2019 | 11 | 5 |
| 2020 | 5 | 4 |
| 2021 | 3 | 4 |
| 2022 | 5 | 8 |
| 2023 | 4 | 4 |
| 2024 | 2 | 2 |
| 2025 | 0 | 0 |
| 2026 | 1 | 3 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Optical signal monitor, optical wavelength multiplexing transmitter, and method for monitoring optical signal28 Jul 2026US 12,695,505 B2Radiant Patents LLC
- Adaptive channel loading in WDM optical communication systems23 Jul 2024US 12,047,162 B2Nokia Solutions and Networks Oy
- Optical channel plan process9 Jan 2024US 11,870,499 B2Cisco Technology, Inc.
- Status control method, data sending method, and terminal26 Dec 2023US 11,855,756 B2Huawei Technologies Co., Ltd.
- Optical signal monitor, optical wavelength multiplexing transmitter, and method for monitoring optical signal19 Sep 2023US 11,764,870 B2NEC Corporation
- Technology-aware optical device for an optical network28 May 2026US 2026/0149524 A1Nokia Solutions and Networks Oy
- Systems and methods for activating multi-rate optical network units in optical networks30 Apr 2026US 2026/0121781 A1Adtran, Inc.
- A method and system for determining a bitrate allocation of a plurality of optical channels in an optical transmission link26 Feb 2026US 2026/0058751 A1
- Coordinated Transmission in Multi-Passive Optical Network (PON) Systems20 Jun 2024US 2024/0204904 A1Huawei Technologies Co., Ltd.
- Multi-rate optical transceiver29 Feb 2024US 2024/0072901 A1Ezconn Corporation
Most cited
By later US patents
- Wavelength division multiplexed optical communication system having variable channel spacings54US 8,768,177 B2Infinera Corporation · 2014
- Multiplexer and modulation arrangements for multi-carrier optical modems52US 8,861,977 B2Infinera Corporation · 2014
- Transmission of subcarriers having different modulation formats48US 10,374,721 B2Infinera Corporation · 2019
- Flexible wavelength selective switch fabric with arbitrary add and drop capability33US 7,231,107 B1Ciena Corporation · 2007
- Method and apparatus for optical signal transmission using multiple sub-signals of non-uniform bandwidth17US 6,459,832 B1Nortel Networks Limited · 2002