G01J 3/1809
Echelle gratings
Official title: {Echelle gratings}
G01J3/1809 (Echelle gratings) appears on 85 US grants and 72 published applications in this corpus.
Search patents in G01J- Granted patents
- 85
- Published applications
- 72
- Assignees
- 69
- Inventors
- 196
- Latest grant
- 30 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 1 |
| 2002 | 2 | 2 |
| 2003 | 3 | 1 |
| 2004 | 2 | 2 |
| 2005 | 0 | 2 |
| 2006 | 1 | 4 |
| 2007 | 3 | 1 |
| 2008 | 5 | 6 |
| 2009 | 0 | 2 |
| 2010 | 2 | 3 |
| 2011 | 4 | 1 |
| 2012 | 2 | 2 |
| 2013 | 0 | 0 |
| 2014 | 4 | 2 |
| 2015 | 1 | 2 |
| 2016 | 1 | 0 |
| 2017 | 2 | 3 |
| 2018 | 1 | 2 |
| 2019 | 5 | 6 |
| 2020 | 5 | 6 |
| 2021 | 5 | 4 |
| 2022 | 3 | 3 |
| 2023 | 3 | 9 |
| 2024 | 4 | 1 |
| 2025 | 4 | 5 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Optical spectrometer30 Dec 2025US 12,510,408 B2Thermo Fisher Scientific (Bremen) GmbH
- Method of analyzing a spectral peak12 Aug 2025US 12,385,780 B2Thermo Fisher Scientific (Bremen) GmbH
- Method and device for processing two-dimensional optical spectra3 Jun 2025US 12,320,700 B2Thermo Fisher Scientific (Bremen) GmbH
- Multipulse-induced spectroscopy method and device based on femtosecond plasma grating15 Apr 2025US 12,276,613 B2Chongqing Huapu Intelligent Equipment Co., Ltd.
- Peak determination in two-dimensional optical spectra10 Dec 2024US 12,163,837 B2Thermo Fisher Scientific (Bremen) GmbH
- Optical emission spectrometer and method of analysing a spectral peak23 Jul 2026US 2026/0210761 A1Thermo Fisher Scientific (Bremen) GmbH
- Scientific instrument support systems and methods for mitigating spectral drift26 Feb 2026US 2026/0056054 A1
- Optical measurement systems with multi-wavelength emission17 Jul 2025US 2025/0231063 A1Apple Inc.
- Optical measurement systems with multi-wavelength emission3 Apr 2025US 2025/0109989 A1Apple Inc.
- Peak position measurement offset in a two-dimensional optical spectrum13 Feb 2025US 2025/0052615 A1Thermo Fisher Scientific (Bremen) GmbH
Most cited
By later US patents
- Optical spectrometer for detecting spectra in separate ranges152US 5,565,983 AThe Perkin-Elmer Corporation · 1996
- Cross-dispersed spectrometer in a spectral domain optical coherence tomography system142US 7,342,659 B2Carl Zeiss Meditec AG · 2008
- Two-dimensional spectrometer126US 4,984,888 AIMO Industries, Inc. · 1991
- Immersion echelle spectrograph62US 6,078,048 AThe Regents of the University of California · 2000
- Detector for a spectrometer36US 4,820,048 AThe Perkin-Elmer Corporation · 1989