H04Q 2213/13295
Wavelength multiplexing, wdm
Official title: Wavelength multiplexing, WDM
H04Q2213/13295 (Wavelength multiplexing, wdm) appears on 26 US grants and 29 published applications in this corpus.
Search patents in H04Q- Granted patents
- 26
- Published applications
- 29
- Assignees
- 27
- Inventors
- 92
- Latest grant
- 1 Apr 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 2 |
| 2004 | 1 | 0 |
| 2005 | 0 | 2 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 0 | 1 |
| 2012 | 2 | 3 |
| 2013 | 2 | 0 |
| 2014 | 1 | 1 |
| 2015 | 0 | 3 |
| 2016 | 2 | 1 |
| 2017 | 2 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 2 |
| 2021 | 2 | 2 |
| 2022 | 3 | 2 |
| 2023 | 2 | 4 |
| 2024 | 2 | 1 |
| 2025 | 1 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Using shift-tolerant loss functions in an inverse design process1 Apr 2025US 12,265,777 B2X Development LLC
- Link establishment method and apparatus, and computer readable storage medium6 Aug 2024US 12,058,480 B2Xi'an Zhongxing New Software Co., Ltd.
- Spectrum resource configuration method, network device, and system21 May 2024US 11,990,986 B2Huawei Technologies Co., Ltd.
- Optical demultiplexing device and transmission device17 Oct 2023US 11,791,906 B2Fujitsu Limited
- System and method for transmitting a data stream in a network28 Feb 2023US 11,595,443 B2AT&T Intellectual Property I, L. P.
- Wavelength conversion system and wavelength conversion method29 Jan 2026US 2026/0032364 A1Huawei Technologies Co., Ltd.
- Computing Cluster and Computing Cluster Connection Method15 May 2025US 2025/0159388 A1Huawei Technologies Co., Ltd.
- Fault Positioning Method, Optical Module and Storage Medium12 Dec 2024US 2024/0413900 A1China Mobile Communication Co., Ltd Research Institute
- System and method for transmitting a data stream in a network15 Jun 2023US 2023/0188568 A1AT&T Intellectual Property I, L. P.
- Using shift-tolerant loss functions in an inverse design process30 Mar 2023US 2023/0099485 A1X Development LLC
Most cited
By later US patents
- Method and apparatus for multiplexing bytes over parallel communications links using data slices56US 6,160,819 AGTE Internetworking Incorporated · 2000
- Scalable network restoration device19US 6,404,734 B1Telecommuncations Research Laboratories · 2002
- Cross-connecting optical translator array18US 6,185,021 B2Lucent Technologies Inc. · 2001
- Adding DSL services to a digital loop carrier system14US 6,781,981 B1Advanced Fibre Access Corporation · 2004
- Wavelength path communication node apparatus, wavelength path communication control method, and recording medium11US 8,693,880 B2NEC Corporation · 2014