H04B 2210/258
Treating each wavelength or wavelength band separately
Official title: treating each wavelength or wavelength band separately
H04B2210/258 (Treating each wavelength or wavelength band separately) appears on 227 US grants and 150 published applications in this corpus.
Search patents in H04B- Granted patents
- 227
- Published applications
- 150
- Assignees
- 86
- Inventors
- 413
- Latest grant
- 3 Jun 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 7 | 0 |
| 1996 | 2 | 0 |
| 1997 | 6 | 0 |
| 1998 | 1 | 0 |
| 1999 | 8 | 0 |
| 2000 | 12 | 0 |
| 2001 | 24 | 11 |
| 2002 | 26 | 35 |
| 2003 | 26 | 25 |
| 2004 | 19 | 21 |
| 2005 | 26 | 11 |
| 2006 | 18 | 12 |
| 2007 | 9 | 11 |
| 2008 | 9 | 2 |
| 2009 | 8 | 5 |
| 2010 | 10 | 5 |
| 2011 | 2 | 3 |
| 2012 | 3 | 1 |
| 2013 | 2 | 2 |
| 2014 | 1 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 1 |
| 2019 | 1 | 1 |
| 2020 | 1 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 1 |
| 2023 | 1 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Method for determining power compensation value of optical signal and related apparatus3 Jun 2025US 12,323,187 B2Huawei Technologies Co., Ltd.
- Optical control type phased array antenna20 Jun 2023US 11,683,115 B2Mitsubishi Electric Corporation
- OTDR method targeting identified event23 Nov 2021US 11,181,440 B2EXFO Inc.
- Optical wavelength multiplexing transmission apparatus and optical wavelength multiplexing transmission method21 Jan 2020US 10,541,749 B2Fujitsu Limited
- Optical power and chromatic dispersion equalization system5 Mar 2019US 10,225,016 B1Amazon Technologies, Inc.
- Method for Determining Power Compensation Value of Optical Signal and Related Apparatus17 Aug 2023US 2023/0261751 A1Huawei Technologies Co., Ltd.
- Optical control type phased array antenna24 Mar 2022US 2022/0094459 A1Mitsubishi Electric Corporation
- Otdr method targeting identified event16 Apr 2020US 2020/0116591 A1EXFO Inc.
- Optical wavelength multiplexing transmission apparatus and optical wavelength multiplexing transmission method10 Oct 2019US 2019/0312641 A1Fujitsu Limited
- Overlapping Spectrum Amplification10 May 2018US 2018/0132016 A1Google Inc.
Most cited
By later US patents
- Method of activating optical communication system, channel increasing/decreasing method, and computer-readable recording medium165US 6,839,160 B2Fujitsu Limited · 2005
- Dual window WDM optical fiber communication108US 5,905,838 ALucent Technologies Inc. · 1999
- Self-regulating multiwavelength optical amplifier module for scalable lightwave communications systems104US 5,392,154 ABell Communications Research, Inc. · 1995
- Broadband amplifier and communication system103US 6,356,384 B1Xtera Communications, Inc. · 2002
- Arrayed-wave guide grating multi/demultiplexer with loop-back optical paths100US 5,414,548 ANippon Telegraph and Telephone Corporation · 1995