H01S 3/2341
Four pass amplifiers
Official title: {Four pass amplifiers}
H01S3/2341 (Four pass amplifiers) appears on 64 US grants and 56 published applications in this corpus.
Search patents in H01S- Granted patents
- 64
- Published applications
- 56
- Assignees
- 40
- Inventors
- 116
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 2 |
| 2003 | 0 | 4 |
| 2004 | 1 | 0 |
| 2005 | 1 | 5 |
| 2006 | 3 | 5 |
| 2007 | 2 | 3 |
| 2008 | 2 | 2 |
| 2009 | 6 | 4 |
| 2010 | 3 | 2 |
| 2011 | 1 | 6 |
| 2012 | 2 | 3 |
| 2013 | 6 | 3 |
| 2014 | 1 | 2 |
| 2015 | 6 | 2 |
| 2016 | 1 | 2 |
| 2017 | 3 | 1 |
| 2018 | 1 | 1 |
| 2019 | 1 | 2 |
| 2020 | 2 | 3 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
| 2023 | 1 | 2 |
| 2024 | 0 | 2 |
| 2025 | 1 | 0 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Interleaved multi-pass optical amplifier16 Jun 2026US 12,658,667 B2Arizona Board of Regents on Behalf of the University of Arizona
- Autocorrelator and pulse amplifying device including same10 Feb 2026US 12,548,961 B2Electronics and Telecommunications Research Institute
- Extreme ultraviolet light generation apparatus and electronic device manufacturing method30 Dec 2025US 12,512,641 B2Gigaphoton Inc.
- Laser amplification method30 May 2023US 11,664,636 B2Amphos GmbH
- Scaling high-energy pulsed solid-state lasers to high average power5 Apr 2022US 11,296,478 B2Lawrence Livermore National Security, LLC
- Device for amplifying a laser beam15 Feb 2024US 2024/0055818 A1Thales
- Interleaved multi-pass optical amplifier1 Feb 2024US 2024/0039237 A1Arizona Board of Regents on Behalf of the University of Arizona
- Extreme ultraviolet light generation apparatus and electronic device manufacturing method30 Nov 2023US 2023/0387644 A1Gigaphoton Inc.
- Autocorrelator and pulse amplifying device including same14 Sep 2023US 2023/0291164 A1Electronics and Telecommunications Research Institute
- Laser amplification method27 Aug 2020US 2020/0274312 A1Amphos GmbH
Most cited
By later US patents
- Short pulse laser system78US 6,016,324 AJMAR Research, Inc. · 2000
- Low cost, high average power, high brightness solid state laser70US 5,790,574 AImar Technology Co. · 1998
- Picosecond laser61US 5,742,634 AImar Technology Co. · 1998
- Long-pulse-width narrow-bandwidth solid state laser56US 5,689,363 AThe Regents of the University of California · 1997
- Aspheric cassegrain laser power amplifier system34US 3,942,127 AThe United States of America as represented by the Secretary of the Navy · 1976