H04B 10/2935
With a cascade of amplifiers
Official title: {with a cascade of amplifiers}
H04B10/2935 (With a cascade of amplifiers) appears on 183 US grants and 125 published applications in this corpus.
Search patents in H04B- Granted patents
- 183
- Published applications
- 125
- Assignees
- 84
- Inventors
- 362
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 6 | 0 |
| 1996 | 6 | 0 |
| 1997 | 5 | 0 |
| 1998 | 9 | 0 |
| 1999 | 6 | 0 |
| 2000 | 7 | 0 |
| 2001 | 11 | 1 |
| 2002 | 11 | 16 |
| 2003 | 11 | 15 |
| 2004 | 14 | 14 |
| 2005 | 3 | 3 |
| 2006 | 7 | 8 |
| 2007 | 8 | 11 |
| 2008 | 6 | 6 |
| 2009 | 5 | 3 |
| 2010 | 4 | 7 |
| 2011 | 8 | 2 |
| 2012 | 5 | 2 |
| 2013 | 2 | 1 |
| 2014 | 2 | 4 |
| 2015 | 4 | 3 |
| 2016 | 4 | 3 |
| 2017 | 4 | 0 |
| 2018 | 1 | 3 |
| 2019 | 1 | 2 |
| 2020 | 5 | 2 |
| 2021 | 2 | 4 |
| 2022 | 4 | 4 |
| 2023 | 5 | 4 |
| 2024 | 2 | 3 |
| 2025 | 1 | 1 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods to reduce the power consumption of an optical fiber amplifier11 Aug 2026US 12,706,432 B2Huawei Technologies Co., Ltd.
- Gain equalization in C+L erbium-doped fiber amplifiers7 Apr 2026US 12,597,752 B2Subcom, LLC
- Optical amplification apparatus, and mode division multiplexing system including optical amplification apparatus23 Sep 2025US 12,424,811 B2Huawei Technologies Co., Ltd.
- Communication system and method of sensor-based optical alignment between optical nodes30 Jul 2024US 12,052,053 B1Wireless Photonics LLC
- Gain equalization in C+L erbium-doped fiber amplifiers5 Mar 2024US 11,923,651 B2Subcom, LLC
- Power regulation method and optical communication system3 Sep 2026US 2026/0261354 A1Zte Corporation
- Gain equalization in c+l erbium-doped fiber amplifiers9 Jul 2026US 2026/0196795 A1Subcom, LLC
- Method and Network Control Device for Computing a Set of Optimal Amplification Parameters for a Span of a Multi-Span Optical Fiber Network29 Jan 2026US 2026/0031908 A1Adtran Networks SE
- Optical amplifier placement method, optical amplifier placement support apparatus and relay apparatus13 Mar 2025US 2025/0088278 A1Nippon Telegraph and Telephone Corporation
- Gain equalization in c+l erbium-doped fiber amplifiers30 May 2024US 2024/0178629 A1Subcom, LLC
Most cited
By later US patents
- Self-regulating multiwavelength optical amplifier module for scalable lightwave communications systems104US 5,392,154 ABell Communications Research, Inc. · 1995
- Optical signal varying devices85US 6,344,922 B12002
- Distributed amplification for lightwave transmission system80US 5,058,974 AAT&T Bell Laboratories · 1991
- Transmission systems incorporating optical amplifiers80US 5,452,116 ANorthern Telecom Limited · 1995
- Optical repeater and optical network using the same69US 5,083,874 ANippon Telegraph and Telephone Corporation · 1992