H01S 3/1601
Characterised by an active ion
Official title: {characterised by an active (lasing) ion}
H01S3/1601 (Characterised by an active ion) appears on 2,789 US grants and 2,913 published applications in this corpus.
Search patents in H01S- Granted patents
- 2,789
- Published applications
- 2,913
- Assignees
- 1,121
- Inventors
- 5,246
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 4 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 6 | 0 |
| 1989 | 7 | 0 |
| 1990 | 9 | 0 |
| 1991 | 14 | 0 |
| 1992 | 29 | 0 |
| 1993 | 36 | 0 |
| 1994 | 47 | 0 |
| 1995 | 47 | 0 |
| 1996 | 38 | 0 |
| 1997 | 36 | 0 |
| 1998 | 46 | 0 |
| 1999 | 34 | 0 |
| 2000 | 38 | 0 |
| 2001 | 55 | 14 |
| 2002 | 59 | 80 |
| 2003 | 66 | 122 |
| 2004 | 69 | 87 |
| 2005 | 94 | 154 |
| 2006 | 86 | 115 |
| 2007 | 75 | 103 |
| 2008 | 86 | 90 |
| 2009 | 91 | 109 |
| 2010 | 91 | 120 |
| 2011 | 88 | 108 |
| 2012 | 71 | 112 |
| 2013 | 100 | 120 |
| 2014 | 110 | 121 |
| 2015 | 129 | 99 |
| 2016 | 105 | 138 |
| 2017 | 132 | 135 |
| 2018 | 107 | 125 |
| 2019 | 114 | 133 |
| 2020 | 112 | 143 |
| 2021 | 89 | 128 |
| 2022 | 115 | 148 |
| 2023 | 73 | 136 |
| 2024 | 101 | 118 |
| 2025 | 83 | 93 |
| 2026 | 74 | 62 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Rare-earth doped fiber and fiber laser apparatus1 Sep 2026US 12,725,994 B2Fujikura Ltd.
- Multiple frequency laser system for treating skin conditions25 Aug 2026US 12,719,229 B2Candela Corporation
- Optical signal amplification18 Aug 2026US 12,712,330 B21FINITY Inc.
- Fiber laser apparatus11 Aug 2026US 12,706,430 B2Fujikura Ltd.
- Systems and methods to reduce the power consumption of an optical fiber amplifier11 Aug 2026US 12,706,432 B2Huawei Technologies Co., Ltd.
- Systems and methods for calibrating laser pulses1 Oct 2026US 2026/0302710 A1Boston Scientific Scimed, Inc.
- Hybrid optical amplifier1 Oct 2026US 2026/0302711 A11FINITY Inc.
- Wideband hybrid fiber amplifiers and lasers operating in the 2000 nm wavelength region17 Sep 2026US 2026/0280220 A1RET and Associates LLC
- System, method and computer-readable storage device for controlling laser light source of lithotripsy device10 Sep 2026US 2026/0263152 A1GYRUS ACMI INC. (d.b.a.Olympus Surgical Technologies America)
- Laser head10 Sep 2026US 2026/0269555 A1
Most cited
By later US patents
- Ultraviolet laser apparatus and exposure apparatus using same250US 7,023,610 B2Nikon Corporation · 2006
- Modular, high energy, widely-tunable ultrafast fiber source230US 6,885,683 B1Imra America, Inc. · 2005
- Optical fiber and method for making such fiber230US 7,313,312 B2Corning Incorporated · 2007
- Rare earth doped and large effective area optical fibers for fiber lasers and amplifiers222US 8,213,758 B2Imra America, Inc. · 2012
- Apparatus and method for delivery of dispersion-compensated ultrashort optical pulses with high peak power220US 6,249,630 B1Imra America, Inc. · 2001