H04Q 2011/0011
Using wavelength conversion
Official title: {using wavelength conversion}
H04Q2011/0011 (Using wavelength conversion) appears on 210 US grants and 155 published applications in this corpus.
Search patents in H04Q- Granted patents
- 210
- Published applications
- 155
- Assignees
- 94
- Inventors
- 390
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 7 | 0 |
| 1997 | 9 | 0 |
| 1998 | 16 | 0 |
| 1999 | 8 | 0 |
| 2000 | 10 | 0 |
| 2001 | 7 | 4 |
| 2002 | 8 | 21 |
| 2003 | 13 | 13 |
| 2004 | 13 | 17 |
| 2005 | 6 | 7 |
| 2006 | 16 | 6 |
| 2007 | 11 | 8 |
| 2008 | 6 | 2 |
| 2009 | 2 | 7 |
| 2010 | 5 | 3 |
| 2011 | 3 | 1 |
| 2012 | 3 | 1 |
| 2013 | 5 | 3 |
| 2014 | 0 | 5 |
| 2015 | 2 | 4 |
| 2016 | 3 | 9 |
| 2017 | 4 | 6 |
| 2018 | 5 | 3 |
| 2019 | 5 | 3 |
| 2020 | 4 | 4 |
| 2021 | 4 | 2 |
| 2022 | 4 | 6 |
| 2023 | 5 | 4 |
| 2024 | 5 | 9 |
| 2025 | 2 | 4 |
| 2026 | 5 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Optical node device, optical communication system, and wavelength conversion circuit22 Sep 2026US 12,745,023 B21FINITY Inc.
- Wavelength cross connect device, and wavelength cross connect method14 Jul 2026US 12,684,272 B2NTT, Inc.
- Wavelength conversion apparatus, optical transmission apparatus, and wavelength conversion method2 Jun 2026US 12,647,703 B2National University Corporation Tokai National Higher Education and Research System
- Optical communication device that transmits WDM signal and transmission control method24 Feb 2026US 12,562,832 B21FINITY Inc.
- Wavelength cross connect device, and wavelength cross connect method24 Feb 2026US 12,563,323 B2NTT, Inc.
- Wavelength cross connect device, and wavelength cross connect method8 Oct 2026US 2026/0313275 A1NTT, Inc.
- Method and apparatus associated with optical switching14 May 2026US 2026/0136118 A1Finchetto Limited
- Wavelength conversion system and wavelength conversion method29 Jan 2026US 2026/0032364 A1Huawei Technologies Co., Ltd.
- Method and an apparatus for transitioning between optical networks2 Oct 2025US 2025/0309992 A1At&T Intellectual Property L,L,P.
- Optical communication apparatus, optical communication system and transmission method24 Jul 2025US 2025/0240097 A1Nippon Telegraph and Telephone Corporation
Most cited
By later US patents
- Packet-switched self-routing multistage interconnection network having contention-free fanout, low-loss routing, and fanin buffering to efficiently realize arbitrarily low packet loss365US 5,541,914 A1996
- Ultra-low latency multi-protocol optical routers for the next generation internet188US 6,519,062 B1The Regents of the University of California · 2003
- Inter-ring cross-connect for survivable multi-wavelength optical communication networks178US 6,226,111 B1Telcordia Technologies, Inc. · 2001
- Non-blocking optical cross-connect structure for telecommunications network164US 5,627,925 ALucent Technologies Inc. · 1997
- Ultra-low latency multi-protocol optical routers for the next generation internet158US 6,925,257 B2The Regents of the University of California · 2005