G01N 21/39
Using tunable lasers
Official title: using tunable lasers
G01N21/39 (Using tunable lasers) appears on 1,461 US grants and 1,549 published applications in this corpus.
Search patents in G01N- Granted patents
- 1,461
- Published applications
- 1,549
- Assignees
- 740
- Inventors
- 2,809
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 0 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 8 | 0 |
| 1985 | 6 | 0 |
| 1986 | 4 | 0 |
| 1987 | 10 | 0 |
| 1988 | 4 | 0 |
| 1989 | 8 | 0 |
| 1990 | 8 | 0 |
| 1991 | 12 | 0 |
| 1992 | 11 | 0 |
| 1993 | 11 | 0 |
| 1994 | 10 | 0 |
| 1995 | 7 | 0 |
| 1996 | 12 | 0 |
| 1997 | 14 | 0 |
| 1998 | 17 | 0 |
| 1999 | 22 | 0 |
| 2000 | 19 | 0 |
| 2001 | 8 | 3 |
| 2002 | 12 | 13 |
| 2003 | 23 | 27 |
| 2004 | 14 | 34 |
| 2005 | 26 | 37 |
| 2006 | 30 | 47 |
| 2007 | 33 | 50 |
| 2008 | 35 | 57 |
| 2009 | 45 | 31 |
| 2010 | 36 | 44 |
| 2011 | 29 | 51 |
| 2012 | 38 | 57 |
| 2013 | 43 | 46 |
| 2014 | 46 | 56 |
| 2015 | 51 | 70 |
| 2016 | 53 | 81 |
| 2017 | 74 | 73 |
| 2018 | 78 | 102 |
| 2019 | 82 | 86 |
| 2020 | 89 | 97 |
| 2021 | 80 | 103 |
| 2022 | 61 | 77 |
| 2023 | 75 | 84 |
| 2024 | 67 | 77 |
| 2025 | 82 | 84 |
| 2026 | 51 | 62 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Time-of-flight measurement on user with cameras and position sensor6 Oct 2026US 12,751,628 B2Omni Medsci, Inc.
- Remote sensing system with time-of-flight sensor, active illuminator and light sensing system1 Sep 2026US 12,721,527 B2Omni Medsci, Inc.
- Optical foreign matter inspection device1 Sep 2026US 12,723,991 B2Hitachi High-Tech Corporation
- Optical device, light applying method, and service providing method1 Sep 2026US 12,724,130 B2Japan Cell Co., Ltd.
- Tunable hybrid III-V/IV laser sensor system-on-a chip for real-time monitoring of a blood constituent concentration level18 Aug 2026US 12,708,293 B2Brolis Sensor Technology, UAB et al.
- High-Dynamic-Range Laser Absorption Spectrometer1 Oct 2026US 2026/0298817 A1California Institute of Technology
- Optical device, light applying method, and service providing method1 Oct 2026US 2026/0299096 A1Japan Cell Co., Ltd.
- Optical device, light applying method, and service providing method1 Oct 2026US 2026/0299097 A1Japan Cell Co., Ltd.
- Optical device, light applying method, and service providing method1 Oct 2026US 2026/0299098 A1Japan Cell Co., Ltd.
- Tunable laser spectroscopy system with narrow-range scanning and auto-balanced detection24 Sep 2026US 2026/0287504 A1
Most cited
By later US patents
- Manual and automatic probe calibration1,429US 5,758,644 AMasimo Corporation · 1998
- Implantable sensor and system for in vivo measurement and control of fluid constituent levels1,362US 6,049,727 AAnimas Corporation · 2000
- Manual and automatic probe calibration1,177US 6,011,986 AMasimo Corporation · 2000
- Optical probe and positioning wrap1,167US 6,678,543 B2Masimo Corporation · 2004
- Manual and automatic probe calibration1,147US 6,397,091 B2Masimo Corporation · 2002