H01S 3/09408
Pump redundancy
Official title: {Pump redundancy}
H01S3/09408 (Pump redundancy) appears on 375 US grants and 349 published applications in this corpus.
Search patents in H01S- Granted patents
- 375
- Published applications
- 349
- Assignees
- 219
- Inventors
- 848
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 6 | 0 |
| 1991 | 4 | 0 |
| 1992 | 8 | 0 |
| 1993 | 5 | 0 |
| 1994 | 5 | 0 |
| 1995 | 5 | 0 |
| 1996 | 11 | 0 |
| 1997 | 4 | 0 |
| 1998 | 9 | 0 |
| 1999 | 12 | 0 |
| 2000 | 8 | 0 |
| 2001 | 10 | 6 |
| 2002 | 12 | 19 |
| 2003 | 9 | 10 |
| 2004 | 15 | 12 |
| 2005 | 9 | 7 |
| 2006 | 12 | 7 |
| 2007 | 6 | 5 |
| 2008 | 4 | 10 |
| 2009 | 5 | 5 |
| 2010 | 9 | 21 |
| 2011 | 11 | 25 |
| 2012 | 13 | 18 |
| 2013 | 25 | 19 |
| 2014 | 16 | 14 |
| 2015 | 19 | 20 |
| 2016 | 15 | 19 |
| 2017 | 14 | 10 |
| 2018 | 13 | 13 |
| 2019 | 16 | 19 |
| 2020 | 10 | 12 |
| 2021 | 10 | 16 |
| 2022 | 11 | 19 |
| 2023 | 5 | 16 |
| 2024 | 8 | 12 |
| 2025 | 10 | 12 |
| 2026 | 7 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Multicore fiber, optical coupler, and optical amplifier16 Jul 2026US 2026/0204861 A1Lightera Japan Co., Ltd.
- All-Fiber Laser System With Intrinsic Isolation Of Backward-Propagating Optical Radiation25 Jun 2026US 2026/0180277 A1Lightel Technologies, Inc.
- Optical fiber amplifier, optical power amplification method, related device, and system8 Jan 2026US 2026/0011972 A1
- Laser module2 Oct 2025US 2025/0309613 A1NEC Corporation
- Fiber segment amplifier assembly7 Aug 2025US 2025/0253606 A1Subcom, LLC
Most cited
By later US patents
- Optical communication systems using raman repeaters and components therefor167US 4,616,898 APolaroid Corporation · 1986
- High power, high gain, low noise, two-stage optical amplifier100US 5,430,572 AAT&T Corp. · 1995
- Method and apparatus for efficient operation of optically pumped laser98US 4,710,940 ACalifornia Institute of Technology · 1987
- Optically pumped laser93US 4,901,330 AAmoco Corporation · 1990
- Multi-stage optical amplifier87US 5,115,338 AAT&T Bell Laboratories · 1992