G01J 3/18
Using diffraction elements
Official title: using diffraction elements, e.g. grating (gratings per se G02B)
G01J3/18 (Using diffraction elements) appears on 1,773 US grants and 1,625 published applications in this corpus.
Search patents in G01J- Granted patents
- 1,773
- Published applications
- 1,625
- Assignees
- 886
- Inventors
- 3,314
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 8 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 8 | 0 |
| 1981 | 10 | 0 |
| 1982 | 7 | 0 |
| 1983 | 5 | 0 |
| 1984 | 9 | 0 |
| 1985 | 6 | 0 |
| 1986 | 8 | 0 |
| 1987 | 15 | 0 |
| 1988 | 12 | 0 |
| 1989 | 14 | 0 |
| 1990 | 19 | 0 |
| 1991 | 27 | 0 |
| 1992 | 13 | 0 |
| 1993 | 11 | 0 |
| 1994 | 14 | 0 |
| 1995 | 14 | 0 |
| 1996 | 21 | 0 |
| 1997 | 7 | 0 |
| 1998 | 19 | 0 |
| 1999 | 24 | 0 |
| 2000 | 21 | 0 |
| 2001 | 15 | 13 |
| 2002 | 27 | 40 |
| 2003 | 43 | 26 |
| 2004 | 23 | 35 |
| 2005 | 28 | 43 |
| 2006 | 37 | 44 |
| 2007 | 45 | 52 |
| 2008 | 44 | 39 |
| 2009 | 35 | 40 |
| 2010 | 33 | 51 |
| 2011 | 37 | 44 |
| 2012 | 27 | 49 |
| 2013 | 48 | 51 |
| 2014 | 52 | 70 |
| 2015 | 54 | 66 |
| 2016 | 55 | 67 |
| 2017 | 70 | 84 |
| 2018 | 100 | 104 |
| 2019 | 122 | 120 |
| 2020 | 105 | 123 |
| 2021 | 105 | 104 |
| 2022 | 87 | 101 |
| 2023 | 87 | 82 |
| 2024 | 81 | 71 |
| 2025 | 65 | 68 |
| 2026 | 43 | 38 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G01J 3/1804Plane gratings213
- G01J 3/1895Using fiber bragg gratings or gratings integrated in a waveguide191
- G01J 3/1838Holographic gratings178
- G01J 3/1809Echelle gratings85
- G01J 3/20Rowland circle spectrometers84
- G01J 2003/1842Types of gratingIndexing code69
- G01J 2003/1828With order sorter or prefilterIndexing code48
- G01J 3/22Littrow mirror spectrometers35
All 15 subgroupsShow fewer
- G01J 3/24Using gratings profiled to favour a specific order28
- G01J 2003/1814Double monochromatorIndexing code20
- G01J 3/189Using at least one grating in an off-plane configuration20
- G01J 2003/1866Monochromator for three or more wavelengthsIndexing code14
- G01J 2003/1885Holder for interchangeable gratingsIndexing code7
- G01J 3/1833Grazing incidence6
- G01J 2003/188Constant deviationIndexing code0
Recent patents
- Time-of-flight measurement on user with cameras and position sensor6 Oct 2026US 12,751,628 B2Omni Medsci, Inc.
- Methods for compact multi-color flow cytometers having compact detection modules6 Oct 2026US 12,754,128 B2Cytek Biosciences, Inc.
- Polarimetric image sensor29 Sep 2026US 12,747,988 B2STMicroelectronics (Crolles 2) SAS
- Spectroscopic device, spectroscopic method, Raman scattering analysis device, luminescence spectroscopic analysis device, and harmonic observation device22 Sep 2026US 12,742,682 B2Tohoku University
- Spectroscopic system15 Sep 2026US 12,736,402 B2FUJIFILM Corporation
- Gaseous leak detection system and associated methods8 Oct 2026US 2026/0309573 A1TrelliSense, Inc.
- Spectroscopy apparatus and methods1 Oct 2026US 2026/0298707 A1Renishaw PLC
- Spectrometry device, and spectrometry method1 Oct 2026US 2026/0298710 A1Hamamatsu Photonics K.K.
- Spectrometer with magnification24 Sep 2026US 2026/0287426 A1BAE Systems Space & Mission Systems Inc.
- Spectrometer10 Sep 2026US 2026/0266660 A1Oto Photonics Inc.
Most cited
By later US patents
- Near infrared blood glucose monitoring system391US 6,675,030 B2Euro-Celtique S. A. · 2004
- Confocal measuring microscope with automatic focusing340US 4,844,617 ATencor Instruments · 1989
- Multiplicative signal correction method and apparatus338US 5,568,400 A1996
- Chemical analyzer253US 5,314,825 ASchiapparelli Biosystems, Inc. · 1994
- Polymerized crystalline colloidal array sensor methods243US 5,854,078 AUniversity of Pittsburgh · 1998