H01S 3/102
By controlling the active medium
Official title: by controlling the active medium, e.g. by controlling the processes or apparatus for excitation (H01S3/13 takes precedence)
H01S3/102 (By controlling the active medium) appears on 866 US grants and 812 published applications in this corpus.
Search patents in H01S- Granted patents
- 866
- Published applications
- 812
- Assignees
- 474
- Inventors
- 1,892
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 5 | 0 |
| 1978 | 4 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 4 | 0 |
| 1984 | 5 | 0 |
| 1985 | 5 | 0 |
| 1986 | 8 | 0 |
| 1987 | 5 | 0 |
| 1988 | 5 | 0 |
| 1989 | 9 | 0 |
| 1990 | 5 | 0 |
| 1991 | 11 | 0 |
| 1992 | 14 | 0 |
| 1993 | 12 | 0 |
| 1994 | 10 | 0 |
| 1995 | 7 | 0 |
| 1996 | 14 | 0 |
| 1997 | 8 | 0 |
| 1998 | 20 | 0 |
| 1999 | 9 | 0 |
| 2000 | 19 | 0 |
| 2001 | 8 | 4 |
| 2002 | 20 | 31 |
| 2003 | 22 | 23 |
| 2004 | 26 | 20 |
| 2005 | 19 | 27 |
| 2006 | 16 | 20 |
| 2007 | 17 | 33 |
| 2008 | 8 | 16 |
| 2009 | 21 | 34 |
| 2010 | 33 | 24 |
| 2011 | 16 | 29 |
| 2012 | 15 | 25 |
| 2013 | 26 | 29 |
| 2014 | 25 | 36 |
| 2015 | 33 | 44 |
| 2016 | 43 | 39 |
| 2017 | 46 | 40 |
| 2018 | 36 | 51 |
| 2019 | 48 | 54 |
| 2020 | 30 | 30 |
| 2021 | 35 | 47 |
| 2022 | 32 | 32 |
| 2023 | 18 | 40 |
| 2024 | 36 | 36 |
| 2025 | 26 | 25 |
| 2026 | 20 | 23 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Multiple frequency laser system for treating skin conditions25 Aug 2026US 12,719,229 B2Candela Corporation
- Duration-tunable high-energy picosecond pulsed optical fibre laser system and use of such laser system16 Jun 2026US 12,658,659 B2Helix Surgical
- Passive high energy Q-switched laser system with optically synchronized multi-stage/multi-pass amplification9 Jun 2026US 12,651,883 B2Candela Corporation
- Laser reference frequency source stabilized by optical self-injection locking2 Jun 2026US 12,646,902 B1Hqphotonics Inc.
- Piezo-tuned nonplanar ring oscillator with GHz tuning range and 100 kHz bandwidth19 May 2026US 12,633,716 B2
- Optical Waveguide Color Center Creation System1 Oct 2026US 2026/0302714 A1The Boeing Company
- Wavelength tunable laser and optical filter10 Sep 2026US 2026/0269556 A1Hosei University
- Indirect optical pumping with stimulated raman scattering27 Aug 2026US 2026/0254191 A1The Government of the United States of America, as represented by the Secretary of the Navy
- Laser diode based systems, subsystems and methods with temperature control6 Aug 2026US 2026/0229840 A1Elbit Systems Electro-Optics Elop Ltd.
- Excimer laser apparatus and electronic device manufacturing method30 Jul 2026US 2026/0221711 A1Gigaphoton Inc.
Most cited
By later US patents
- Very narrow band, two chamber, high rep rate gas discharge laser system144US 6,567,450 B2Cymer, Inc. · 2003
- Very narrow band, two chamber, high rep rate gas discharge laser system136US 6,625,191 B2Cymer, Inc. · 2003
- Temperature stable solid-state laser package132US 5,181,214 AHarmonic Lightwaves, Inc. · 1993
- Frequency doubled solid state laser having programmable pump power modes and method for controllable lasers120US 5,151,909 ALaserscope · 1992
- Broadband or mid-infrared fiber light sources119US 7,519,253 B2Omni Sciences, Inc. · 2009